{
    "version": "01.00.00",
    "sourceEcSchemaVersion": "01.00.10",
    "name": "Units",
    "alias": "u",
    "label": "Units",
    "description": "Standard Set of Unit definitions for the system",
    "items": {
        "SI": {
            "schemaItemType": "UnitSystem"
        },
        "CGS": {
            "schemaItemType": "UnitSystem"
        },
        "METRIC": {
            "schemaItemType": "UnitSystem"
        },
        "IMPERIAL": {
            "schemaItemType": "UnitSystem"
        },
        "MARITIME": {
            "schemaItemType": "UnitSystem"
        },
        "USSURVEY": {
            "schemaItemType": "UnitSystem"
        },
        "INDUSTRIAL": {
            "schemaItemType": "UnitSystem"
        },
        "INTERNATIONAL": {
            "schemaItemType": "UnitSystem"
        },
        "USCUSTOM": {
            "schemaItemType": "UnitSystem"
        },
        "STATISTICS": {
            "schemaItemType": "UnitSystem"
        },
        "FINANCE": {
            "schemaItemType": "UnitSystem"
        },
        "CONSTANT": {
            "schemaItemType": "UnitSystem"
        },
        "APPARENT_POWER": {
            "schemaItemType": "Phenomenon",
            "label": "Apparent Power",
            "definition": "ELECTRIC_POTENTIAL*CURRENT"
        },
        "AREA": {
            "schemaItemType": "Phenomenon",
            "label": "Area",
            "definition": "LENGTH(2)"
        },
        "VOLUME": {
            "schemaItemType": "Phenomenon",
            "label": "Volume",
            "definition": "LENGTH(3)"
        },
        "VELOCITY": {
            "schemaItemType": "Phenomenon",
            "label": "Velocity",
            "definition": "LENGTH*TIME(-1)"
        },
        "ANGULAR_VELOCITY": {
            "schemaItemType": "Phenomenon",
            "label": "Angular Velocity",
            "definition": "ANGLE*TIME(-1)"
        },
        "ACCELERATION": {
            "schemaItemType": "Phenomenon",
            "label": "Acceleration",
            "definition": "LENGTH*TIME(-2)"
        },
        "FORCE": {
            "schemaItemType": "Phenomenon",
            "label": "Force",
            "definition": "MASS*ACCELERATION"
        },
        "PRESSURE": {
            "schemaItemType": "Phenomenon",
            "label": "Pressure",
            "definition": "FORCE*AREA(-1)"
        },
        "FORCE_DENSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Force Density",
            "definition": "FORCE*VOLUME(-1)"
        },
        "PRESSURE_GRADIENT": {
            "schemaItemType": "Phenomenon",
            "label": "Pressure Gradient",
            "definition": "PRESSURE*LENGTH(-1)"
        },
        "TORQUE": {
            "schemaItemType": "Phenomenon",
            "label": "Torque",
            "definition": "FORCE*LENGTH*ANGLE(-1)"
        },
        "LINEAR_TORQUE": {
            "schemaItemType": "Phenomenon",
            "label": "Linear Torque",
            "definition": "TORQUE*LENGTH(-1)"
        },
        "AREA_TORQUE": {
            "schemaItemType": "Phenomenon",
            "label": "Area Torque",
            "definition": "TORQUE*AREA(-1)"
        },
        "AREA_MOMENT_INERTIA": {
            "schemaItemType": "Phenomenon",
            "label": "Area Moment Inertia",
            "definition": "LENGTH(4)"
        },
        "MASS_RATIO": {
            "schemaItemType": "Phenomenon",
            "label": "Mass Ratio",
            "definition": "MASS*MASS(-1)"
        },
        "DENSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Density",
            "definition": "MASS*VOLUME(-1)"
        },
        "SPECIFIC_VOLUME": {
            "schemaItemType": "Phenomenon",
            "label": "Specific Volume",
            "definition": "VOLUME*MASS(-1)"
        },
        "LINEAR_DENSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Linear Density",
            "definition": "MASS*LENGTH(-1)"
        },
        "SURFACE_DENSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Surface Density",
            "definition": "MASS*AREA(-1)"
        },
        "WORK": {
            "schemaItemType": "Phenomenon",
            "label": "Work",
            "definition": "FORCE*LENGTH"
        },
        "POWER": {
            "schemaItemType": "Phenomenon",
            "label": "Power",
            "definition": "WORK*TIME(-1)"
        },
        "VOLUMETRIC_FLOW": {
            "schemaItemType": "Phenomenon",
            "label": "Volumetric Flow",
            "definition": "VOLUME*TIME(-1)"
        },
        "FLOW_DENSITY_PER_AREA": {
            "schemaItemType": "Phenomenon",
            "label": "Flow Density per Area",
            "description": "Flow demanded by or discharged to a Water/Sewer network per area.",
            "definition": "VOLUMETRIC_FLOW*AREA(-1)"
        },
        "MASS_FLOW": {
            "schemaItemType": "Phenomenon",
            "label": "Mass Flow",
            "definition": "MASS*TIME(-1)"
        },
        "MOLAR_FLOW": {
            "schemaItemType": "Phenomenon",
            "label": "Molar Flow",
            "definition": "MOLE*TIME(-1)"
        },
        "DYNAMIC_VISCOSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Dynamic Viscosity",
            "definition": "PRESSURE*TIME"
        },
        "KINEMATIC_VISCOSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Kinematic Viscosity",
            "definition": "DYNAMIC_VISCOSITY*DENSITY(-1)"
        },
        "ELECTRIC_CHARGE": {
            "schemaItemType": "Phenomenon",
            "label": "Electric Charge",
            "definition": "CURRENT*TIME"
        },
        "ELECTRIC_POTENTIAL": {
            "schemaItemType": "Phenomenon",
            "label": "Electric Potential",
            "definition": "POWER*CURRENT(-1)"
        },
        "LUMINOUS_FLUX": {
            "schemaItemType": "Phenomenon",
            "label": "Luminous Flux",
            "definition": "LUMINOSITY*SOLIDANGLE"
        },
        "ILLUMINANCE": {
            "schemaItemType": "Phenomenon",
            "label": "Illuminance",
            "definition": "LUMINOUS_FLUX*LENGTH(-2)"
        },
        "ROTATIONAL_SPRING_CONSTANT": {
            "schemaItemType": "Phenomenon",
            "label": "Rotational Spring Constant",
            "definition": "TORQUE*ANGLE(-1)"
        },
        "LINEAR_ROTATIONAL_SPRING_CONSTANT": {
            "schemaItemType": "Phenomenon",
            "label": "Linear Rotational Spring Constant",
            "definition": "FORCE*ANGLE(-1)"
        },
        "SPRING_CONSTANT": {
            "schemaItemType": "Phenomenon",
            "label": "Spring Constant",
            "definition": "FORCE*LENGTH(-1)"
        },
        "LINEAR_SPRING_CONSTANT": {
            "schemaItemType": "Phenomenon",
            "label": "Linear Spring Constant",
            "definition": "SPRING_CONSTANT*LENGTH(-1)"
        },
        "AREA_SPRING_CONSTANT": {
            "schemaItemType": "Phenomenon",
            "label": "Area Spring Constant",
            "definition": "SPRING_CONSTANT*AREA(-1)"
        },
        "PIPE_DIAMETER_LENGTH": {
            "schemaItemType": "Phenomenon",
            "label": "Pipe Diameter-Length",
            "description": "The diameter of a pipe multiplied by its length, used as a coefficient for pipe-infiltration calculations.",
            "definition": "LENGTH*LENGTH"
        },
        "THERMAL_CONDUCTIVITY": {
            "schemaItemType": "Phenomenon",
            "label": "Thermal Conductivity",
            "definition": "POWER*LENGTH(-1)*TEMPERATURE_CHANGE(-1)"
        },
        "THERMAL_INSULANCE": {
            "schemaItemType": "Phenomenon",
            "label": "Thermal Resistance",
            "definition": "AREA*TEMPERATURE_CHANGE*POWER(-1)"
        },
        "TEMPERATURE_GRADIENT": {
            "schemaItemType": "Phenomenon",
            "label": "Temperature Gradient",
            "definition": "TEMPERATURE_CHANGE*LENGTH(-1)"
        },
        "MOLAR_VOLUME": {
            "schemaItemType": "Phenomenon",
            "label": "Molar Volume",
            "definition": "VOLUME*MOLE(-1)"
        },
        "MOLAR_CONCENTRATION": {
            "schemaItemType": "Phenomenon",
            "label": "Molar Concentration",
            "definition": "MOLE*VOLUME(-1)"
        },
        "SLOPE": {
            "schemaItemType": "Phenomenon",
            "label": "Slope",
            "definition": "LENGTH*LENGTH(-1)"
        },
        "HEAT_TRANSFER": {
            "schemaItemType": "Phenomenon",
            "label": "Heat Transfer",
            "description": "https://en.wikipedia.org/wiki/Heat_transfer_coefficient",
            "definition": "POWER*AREA(-1)*TEMPERATURE_CHANGE(-1)"
        },
        "HEAT_FLUX_DENSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Heat Flux Density",
            "description": "https://en.wikipedia.org/wiki/Heat_flux see description of heat flux density",
            "definition": "POWER*AREA(-1)"
        },
        "TORSIONAL_WARPING_CONSTANT": {
            "schemaItemType": "Phenomenon",
            "label": "Torsional Warping Constant",
            "definition": "LENGTH(6)"
        },
        "POPULATION_DENSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Population Density",
            "definition": "CAPITA*AREA(-1)"
        },
        "FREQUENCY": {
            "schemaItemType": "Phenomenon",
            "label": "Frequency",
            "definition": "TIME(-1)"
        },
        "LINEAR_LOAD": {
            "schemaItemType": "Phenomenon",
            "label": "Linear Load",
            "definition": "FORCE*LENGTH(-1)"
        },
        "ENERGY_DENSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Energy Density",
            "definition": "WORK*VOLUME(-1)"
        },
        "ELECTRICAL_RESISTANCE": {
            "schemaItemType": "Phenomenon",
            "label": "Electrical Resistance",
            "definition": "ELECTRIC_POTENTIAL*CURRENT(-1)"
        },
        "ELECTRICAL_RESISTIVITY": {
            "schemaItemType": "Phenomenon",
            "label": "Electrical Resistivity",
            "definition": "ELECTRICAL_RESISTANCE*LENGTH"
        },
        "SPECIFIC_ENERGY": {
            "schemaItemType": "Phenomenon",
            "label": "Specific Energy",
            "definition": "WORK*MASS(-1)"
        },
        "SPECIFIC_HEAT_CAPACITY": {
            "schemaItemType": "Phenomenon",
            "label": "Specific_heat Capacity",
            "definition": "WORK*MASS(-1)*TEMPERATURE_CHANGE(-1)"
        },
        "SPECIFIC_HEAT_CAPACITY_MOLAR": {
            "schemaItemType": "Phenomenon",
            "label": "Specific_heat Capacity Molar",
            "definition": "WORK*MOLE(-1)*TEMPERATURE_CHANGE(-1)"
        },
        "PERCENTAGE": {
            "schemaItemType": "Phenomenon",
            "label": "Percentage",
            "definition": "NUMBER"
        },
        "PROBABILITY": {
            "schemaItemType": "Phenomenon",
            "label": "Probability",
            "definition": "NUMBER"
        },
        "LINEAR_RATE": {
            "schemaItemType": "Phenomenon",
            "label": "Linear Rate",
            "definition": "NUMBER*LENGTH(-1)"
        },
        "LINEAR_COEFFICIENT_OF_THERMAL_EXPANSION": {
            "schemaItemType": "Phenomenon",
            "label": "Linear Coefficient Of Thermal Expansion",
            "definition": "LENGTH*LENGTH(-1)*TEMPERATURE_CHANGE(-1)"
        },
        "VOLUME_RATIO": {
            "schemaItemType": "Phenomenon",
            "label": "Volume Ratio",
            "definition": "VOLUME*VOLUME(-1)"
        },
        "LENGTH_RATIO": {
            "schemaItemType": "Phenomenon",
            "definition": "LENGTH*LENGTH(-1)"
        },
        "VOLUME_PER_LENGTH": {
            "schemaItemType": "Phenomenon",
            "label": "Volume per Unit Length",
            "definition": "VOLUME*LENGTH(-1)"
        },
        "LENGTH": {
            "schemaItemType": "Phenomenon",
            "label": "Length",
            "definition": "LENGTH"
        },
        "MASS": {
            "schemaItemType": "Phenomenon",
            "label": "Mass",
            "definition": "MASS"
        },
        "TIME": {
            "schemaItemType": "Phenomenon",
            "label": "Time",
            "definition": "TIME"
        },
        "TEMPERATURE": {
            "schemaItemType": "Phenomenon",
            "label": "Temperature",
            "definition": "TEMPERATURE"
        },
        "TEMPERATURE_CHANGE": {
            "schemaItemType": "Phenomenon",
            "label": "Temperature Change",
            "definition": "TEMPERATURE_CHANGE"
        },
        "CURRENT": {
            "schemaItemType": "Phenomenon",
            "label": "Current",
            "definition": "CURRENT"
        },
        "MOLE": {
            "schemaItemType": "Phenomenon",
            "label": "Mole",
            "definition": "MOLE"
        },
        "LUMINOSITY": {
            "schemaItemType": "Phenomenon",
            "label": "Luminosity",
            "definition": "LUMINOSITY"
        },
        "ANGLE": {
            "schemaItemType": "Phenomenon",
            "label": "Angle",
            "definition": "ANGLE"
        },
        "HORIZONTAL_DIRECTION": {
            "schemaItemType": "Phenomenon",
            "label": "Horizontal Direction",
            "definition": "HORIZONTAL_DIRECTION"
        },
        "SOLIDANGLE": {
            "schemaItemType": "Phenomenon",
            "label": "Solid Angle",
            "definition": "SOLIDANGLE"
        },
        "CURRENCY": {
            "schemaItemType": "Phenomenon",
            "definition": "CURRENCY"
        },
        "CAPITA": {
            "schemaItemType": "Phenomenon",
            "label": "Capita",
            "definition": "CAPITA"
        },
        "NUMBER": {
            "schemaItemType": "Phenomenon",
            "label": "Number",
            "definition": "NUMBER"
        },
        "THREAD_PITCH": {
            "schemaItemType": "Phenomenon",
            "label": "Thread Pitch",
            "definition": "LENGTH*ANGLE(-1)"
        },
        "ENTROPY": {
            "schemaItemType": "Phenomenon",
            "label": "Entropy",
            "definition": "WORK*TEMPERATURE_CHANGE(-1)"
        },
        "LUMINOUS_EFFICACY": {
            "schemaItemType": "Phenomenon",
            "label": "Luminous Efficacy",
            "definition": "LUMINOUS_FLUX*POWER(-1)"
        },
        "MOMENT_DISPLAY_SCALE": {
            "schemaItemType": "Phenomenon",
            "label": "Moment Scale",
            "description": "Display size of the linear moment",
            "definition": "FORCE(-1)"
        },
        "FORCE_DISPLAY_SCALE": {
            "schemaItemType": "Phenomenon",
            "label": "Force Scale",
            "description": "Display size of the force",
            "definition": "LINEAR_LOAD(-1)"
        },
        "PI": {
            "schemaItemType": "Constant",
            "label": "Pi",
            "phenomenon": "Units.LENGTH_RATIO",
            "definition": "ONE",
            "numerator": 3.141592653589793
        },
        "QUARTER_PI": {
            "schemaItemType": "Constant",
            "label": "Pi/4",
            "phenomenon": "Units.LENGTH_RATIO",
            "definition": "PI",
            "numerator": 1,
            "denominator": 4
        },
        "HALF_PI": {
            "schemaItemType": "Constant",
            "label": "Pi/2",
            "phenomenon": "Units.LENGTH_RATIO",
            "definition": "PI",
            "numerator": 1,
            "denominator": 2
        },
        "TWO_PI": {
            "schemaItemType": "Constant",
            "label": "2Pi",
            "phenomenon": "Units.LENGTH_RATIO",
            "definition": "PI",
            "numerator": 2
        },
        "DEG360": {
            "schemaItemType": "Constant",
            "label": "360°",
            "phenomenon": "Units.ANGLE",
            "definition": "ARC_DEG",
            "numerator": 360
        },
        "STD_G": {
            "schemaItemType": "Constant",
            "label": "ɡ0",
            "phenomenon": "Units.ACCELERATION",
            "definition": "M*S(-2)",
            "numerator": 9.80665
        },
        "DECI": {
            "schemaItemType": "Constant",
            "label": "deci",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 0.1
        },
        "CENTI": {
            "schemaItemType": "Constant",
            "label": "centi",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 0.01
        },
        "MILLI": {
            "schemaItemType": "Constant",
            "label": "milli",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 0.001
        },
        "MICRO": {
            "schemaItemType": "Constant",
            "label": "micro",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 0.000001
        },
        "NANO": {
            "schemaItemType": "Constant",
            "label": "nano",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e-9
        },
        "PICO": {
            "schemaItemType": "Constant",
            "label": "pico",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e-12
        },
        "FEMTO": {
            "schemaItemType": "Constant",
            "label": "femto",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e-15
        },
        "ATTO": {
            "schemaItemType": "Constant",
            "label": "atto",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e-18
        },
        "ZEPTO": {
            "schemaItemType": "Constant",
            "label": "zepto",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e-21
        },
        "YOCTO": {
            "schemaItemType": "Constant",
            "label": "yocto",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e-24
        },
        "DECA": {
            "schemaItemType": "Constant",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 10
        },
        "HECTO": {
            "schemaItemType": "Constant",
            "label": "hecto",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 100
        },
        "KILO": {
            "schemaItemType": "Constant",
            "label": "kilo",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1000
        },
        "MEGA": {
            "schemaItemType": "Constant",
            "label": "mega",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1000000
        },
        "GIGA": {
            "schemaItemType": "Constant",
            "label": "giga",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1000000000
        },
        "TERA": {
            "schemaItemType": "Constant",
            "label": "tera",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1000000000000
        },
        "PETA": {
            "schemaItemType": "Constant",
            "label": "peta",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1000000000000000
        },
        "EXA": {
            "schemaItemType": "Constant",
            "label": "exa",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1000000000000000000
        },
        "ZETTA": {
            "schemaItemType": "Constant",
            "label": "zetta",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e+21
        },
        "YOTTA": {
            "schemaItemType": "Constant",
            "label": "yotta",
            "phenomenon": "Units.NUMBER",
            "definition": "ONE",
            "numerator": 1e+24
        },
        "MM": {
            "schemaItemType": "Unit",
            "label": "mm",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.METRIC",
            "definition": "[MILLI]*M"
        },
        "CM": {
            "schemaItemType": "Unit",
            "label": "cm",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.METRIC",
            "definition": "[CENTI]*M"
        },
        "DM": {
            "schemaItemType": "Unit",
            "label": "dm",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.METRIC",
            "definition": "[DECI]*M"
        },
        "KM": {
            "schemaItemType": "Unit",
            "label": "km",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*M"
        },
        "UM": {
            "schemaItemType": "Unit",
            "label": "µm",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.METRIC",
            "definition": "[MICRO]*M"
        },
        "MILLIINCH": {
            "schemaItemType": "Unit",
            "label": "mil",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[MILLI]*IN"
        },
        "MICROINCH": {
            "schemaItemType": "Unit",
            "label": "µin",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[MICRO]*IN"
        },
        "MILLIFOOT": {
            "schemaItemType": "Unit",
            "label": "mft",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[MILLI]*FT"
        },
        "IN": {
            "schemaItemType": "Unit",
            "label": "in",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix B. Section 3.1, Page B-10",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "MM",
            "numerator": 25.4
        },
        "FT": {
            "schemaItemType": "Unit",
            "label": "ft",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 2, Page C-4",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN",
            "numerator": 12
        },
        "YRD": {
            "schemaItemType": "Unit",
            "label": "yd",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 2, Page C-4",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT",
            "numerator": 3
        },
        "CHAIN": {
            "schemaItemType": "Unit",
            "label": "chain",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-8",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT",
            "numerator": 66
        },
        "MILE": {
            "schemaItemType": "Unit",
            "label": "mi",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-8",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "YRD",
            "numerator": 1760
        },
        "US_SURVEY_IN": {
            "schemaItemType": "Unit",
            "label": "in (US Survey)",
            "description": "100/3937 Derived from the definition of us survey foot in terms of meters.  Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-9",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USSURVEY",
            "definition": "M",
            "numerator": 100,
            "denominator": 3937
        },
        "US_SURVEY_FT": {
            "schemaItemType": "Unit",
            "label": "ft (US Survey)",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 2, Page C-4",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_IN",
            "numerator": 12
        },
        "US_SURVEY_YRD": {
            "schemaItemType": "Unit",
            "label": "yrd (US Survey)",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 2, Page C-4",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_FT",
            "numerator": 3
        },
        "US_SURVEY_CHAIN": {
            "schemaItemType": "Unit",
            "label": "chain (US Survey)",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-8",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_FT",
            "numerator": 66
        },
        "US_SURVEY_MILE": {
            "schemaItemType": "Unit",
            "label": "mi (US Survey)",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-8",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_YRD",
            "numerator": 1760
        },
        "NAUT_MILE": {
            "schemaItemType": "Unit",
            "label": "nmi",
            "description": "International Nautical Mile.  Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 2, Page C-4",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.MARITIME",
            "definition": "M",
            "numerator": 1852
        },
        "G": {
            "schemaItemType": "Unit",
            "label": "g",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.METRIC",
            "definition": "[MILLI]*KG"
        },
        "MG": {
            "schemaItemType": "Unit",
            "label": "mg",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.METRIC",
            "definition": "[MILLI]*G"
        },
        "MKG": {
            "schemaItemType": "Unit",
            "label": "µg",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.METRIC",
            "definition": "[MICRO]*G"
        },
        "NG": {
            "schemaItemType": "Unit",
            "label": "ng",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.METRIC",
            "definition": "[NANO]*G"
        },
        "MEGAGRAM": {
            "schemaItemType": "Unit",
            "label": "Mg",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*G"
        },
        "TONNE": {
            "schemaItemType": "Unit",
            "label": "tonne",
            "description": "Also known as a metric ton http://phyMETRICcs.nist.gov/cuu/pdf/sp811.pdf, Appendix B.",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*KG"
        },
        "LBM": {
            "schemaItemType": "Unit",
            "label": "lb",
            "description": "Is Avoirdupois Pound.  Exact, http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B. Footnote 22",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KG",
            "numerator": 0.45359237
        },
        "SLUG": {
            "schemaItemType": "Unit",
            "label": "slug",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*S(2)*FT(-1)"
        },
        "GRM": {
            "schemaItemType": "Unit",
            "label": "gr",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix B. Section 3.2, Page B-10",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM",
            "denominator": 7000
        },
        "SHORT_TON_MASS": {
            "schemaItemType": "Unit",
            "label": "tn (short)",
            "description": "Exact, http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B.",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM",
            "numerator": 2000
        },
        "LONG_TON_MASS": {
            "schemaItemType": "Unit",
            "label": "tn (long)",
            "description": "Exact, http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B.",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM",
            "numerator": 2240
        },
        "KIPM": {
            "schemaItemType": "Unit",
            "label": "kipm",
            "description": "Exact, http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B.",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[KILO]*LBM"
        },
        "OZM": {
            "schemaItemType": "Unit",
            "label": "oz",
            "description": "1/16 Exact, https://en.wikipedia.org/wiki/Ounce",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM",
            "denominator": 16
        },
        "MIN": {
            "schemaItemType": "Unit",
            "label": "min",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "S",
            "numerator": 60
        },
        "HR": {
            "schemaItemType": "Unit",
            "label": "h",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "MIN",
            "numerator": 60
        },
        "DAY": {
            "schemaItemType": "Unit",
            "label": "days",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "HR",
            "numerator": 24
        },
        "WEEK": {
            "schemaItemType": "Unit",
            "label": "week",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "DAY",
            "numerator": 7
        },
        "YR": {
            "schemaItemType": "Unit",
            "label": "years",
            "description": "http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B. Year is 3.1536 E+07 seconds which is equal to 365 * 24 * 60 * 60",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "DAY",
            "numerator": 365
        },
        "YEAR_SIDEREAL": {
            "schemaItemType": "Unit",
            "label": "Year (Sidereal)",
            "description": "http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B.",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "S",
            "numerator": 31558150
        },
        "YEAR_TROPICAL": {
            "schemaItemType": "Unit",
            "label": "Year (Tropical)",
            "description": "http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B.",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "S",
            "numerator": 31556930
        },
        "MS": {
            "schemaItemType": "Unit",
            "label": "ms",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "[MILLI]*S"
        },
        "MKS": {
            "schemaItemType": "Unit",
            "label": "µs",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "[MICRO]*S"
        },
        "CELSIUS": {
            "schemaItemType": "Unit",
            "label": "°C",
            "phenomenon": "Units.TEMPERATURE",
            "unitSystem": "Units.METRIC",
            "definition": "K",
            "offset": 273.15
        },
        "FAHRENHEIT": {
            "schemaItemType": "Unit",
            "label": "°F",
            "description": "Factor is 5/9",
            "phenomenon": "Units.TEMPERATURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CELSIUS",
            "numerator": 5,
            "denominator": 9,
            "offset": -32
        },
        "RANKINE": {
            "schemaItemType": "Unit",
            "label": "°R",
            "description": "Factor is 5/9",
            "phenomenon": "Units.TEMPERATURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "K",
            "numerator": 5,
            "denominator": 9
        },
        "DELTA_CELSIUS": {
            "schemaItemType": "Unit",
            "label": "Δ°C",
            "phenomenon": "Units.TEMPERATURE_CHANGE",
            "unitSystem": "Units.METRIC",
            "definition": "DELTA_KELVIN"
        },
        "DELTA_FAHRENHEIT": {
            "schemaItemType": "Unit",
            "label": "Δ°F",
            "description": "Factor is 5/9",
            "phenomenon": "Units.TEMPERATURE_CHANGE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "DELTA_CELSIUS",
            "numerator": 5,
            "denominator": 9
        },
        "DELTA_RANKINE": {
            "schemaItemType": "Unit",
            "label": "Δ°R",
            "description": "Factor is 5/9",
            "phenomenon": "Units.TEMPERATURE_CHANGE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "DELTA_KELVIN",
            "numerator": 5,
            "denominator": 9
        },
        "KELVIN_PER_M": {
            "schemaItemType": "Unit",
            "label": "ΔK/m",
            "phenomenon": "Units.TEMPERATURE_GRADIENT",
            "unitSystem": "Units.SI",
            "definition": "DELTA_KELVIN*M(-1)"
        },
        "STRAIN_PER_KELVIN": {
            "schemaItemType": "Unit",
            "label": "1/ΔK",
            "phenomenon": "Units.LINEAR_COEFFICIENT_OF_THERMAL_EXPANSION",
            "unitSystem": "Units.SI",
            "definition": "DELTA_KELVIN(-1)"
        },
        "STRAIN_PER_CELSIUS": {
            "schemaItemType": "Unit",
            "label": "1/Δ°C",
            "phenomenon": "Units.LINEAR_COEFFICIENT_OF_THERMAL_EXPANSION",
            "unitSystem": "Units.METRIC",
            "definition": "DELTA_CELSIUS(-1)"
        },
        "STRAIN_PER_FAHRENHEIT": {
            "schemaItemType": "Unit",
            "label": "1/Δ°F",
            "phenomenon": "Units.LINEAR_COEFFICIENT_OF_THERMAL_EXPANSION",
            "unitSystem": "Units.USCUSTOM",
            "definition": "DELTA_FAHRENHEIT(-1)"
        },
        "STRAIN_PER_RANKINE": {
            "schemaItemType": "Unit",
            "label": "1/Δ°R",
            "phenomenon": "Units.LINEAR_COEFFICIENT_OF_THERMAL_EXPANSION",
            "unitSystem": "Units.USCUSTOM",
            "definition": "DELTA_RANKINE(-1)"
        },
        "LUMEN": {
            "schemaItemType": "Unit",
            "label": "lm",
            "phenomenon": "Units.LUMINOUS_FLUX",
            "unitSystem": "Units.SI",
            "definition": "CD*STERAD"
        },
        "LUX": {
            "schemaItemType": "Unit",
            "label": "lx",
            "phenomenon": "Units.ILLUMINANCE",
            "unitSystem": "Units.SI",
            "definition": "LUMEN*M(-2)"
        },
        "LUMEN_PER_SQ_FT": {
            "schemaItemType": "Unit",
            "label": "lm/ft²",
            "phenomenon": "Units.ILLUMINANCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LUMEN*FT(-2)"
        },
        "KMOL": {
            "schemaItemType": "Unit",
            "label": "kmol",
            "phenomenon": "Units.MOLE",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*MOL"
        },
        "LB_MOL": {
            "schemaItemType": "Unit",
            "label": "lb-mol",
            "description": "ASTM SI 10 standard SI1-.phhc8328.pdf page 29, 35 and http://en.wikipedia.org/wiki/Mole_%28unit%29",
            "phenomenon": "Units.MOLE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "MOL",
            "numerator": 453.59237
        },
        "HUNDRED_PERSON": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.CAPITA",
            "unitSystem": "Units.STATISTICS",
            "definition": "[HECTO]*PERSON"
        },
        "THOUSAND_PERSON": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.CAPITA",
            "unitSystem": "Units.STATISTICS",
            "definition": "[KILO]*PERSON"
        },
        "N_M_PER_RAD": {
            "schemaItemType": "Unit",
            "label": "N·m/rad",
            "phenomenon": "Units.ROTATIONAL_SPRING_CONSTANT",
            "unitSystem": "Units.SI",
            "definition": "N_M*RAD(-1)"
        },
        "KN_M_PER_RAD": {
            "schemaItemType": "Unit",
            "label": "kN·m/rad",
            "phenomenon": "Units.ROTATIONAL_SPRING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "KN_M*RAD(-1)"
        },
        "N_M_PER_DEG": {
            "schemaItemType": "Unit",
            "label": "N·m/deg",
            "phenomenon": "Units.ROTATIONAL_SPRING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "N_M*ARC_DEG(-1)"
        },
        "KPF_FT_PER_RAD": {
            "schemaItemType": "Unit",
            "label": "kpf·ft/rad",
            "phenomenon": "Units.ROTATIONAL_SPRING_CONSTANT",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF_FT*RAD(-1)"
        },
        "N_PER_RAD": {
            "schemaItemType": "Unit",
            "label": "N/rad",
            "phenomenon": "Units.LINEAR_ROTATIONAL_SPRING_CONSTANT",
            "unitSystem": "Units.SI",
            "definition": "N*RAD(-1)"
        },
        "KN_PER_RAD": {
            "schemaItemType": "Unit",
            "label": "kN/rad",
            "phenomenon": "Units.LINEAR_ROTATIONAL_SPRING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "KN*RAD(-1)"
        },
        "KPF_PER_RAD": {
            "schemaItemType": "Unit",
            "label": "kpf/rad",
            "phenomenon": "Units.LINEAR_ROTATIONAL_SPRING_CONSTANT",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF*RAD(-1)"
        },
        "SPRING_CONSTANT_N_PER_M": {
            "schemaItemType": "Unit",
            "label": "N/m",
            "phenomenon": "Units.SPRING_CONSTANT",
            "unitSystem": "Units.SI",
            "definition": "N*M(-1)"
        },
        "SPRING_CONSTANT_KN_PER_M": {
            "schemaItemType": "Unit",
            "label": "kN/m",
            "phenomenon": "Units.SPRING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "KN*M(-1)"
        },
        "SPRING_CONSTANT_KPF_PER_FT": {
            "schemaItemType": "Unit",
            "label": "kpf/ft",
            "phenomenon": "Units.SPRING_CONSTANT",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF*FT(-1)"
        },
        "LINEAR_SPRING_CONSTANT_N_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "N/m²",
            "phenomenon": "Units.LINEAR_SPRING_CONSTANT",
            "unitSystem": "Units.SI",
            "definition": "SPRING_CONSTANT_N_PER_M*M(-1)"
        },
        "LINEAR_SPRING_CONSTANT_KN_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "kN/m²",
            "phenomenon": "Units.LINEAR_SPRING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "SPRING_CONSTANT_KN_PER_M*M(-1)"
        },
        "LINEAR_SPRING_CONSTANT_KPF_PER_SQ_FT": {
            "schemaItemType": "Unit",
            "label": "kpf/ft²",
            "phenomenon": "Units.LINEAR_SPRING_CONSTANT",
            "unitSystem": "Units.USCUSTOM",
            "definition": "SPRING_CONSTANT_KPF_PER_FT*FT(-1)"
        },
        "AREA_SPRING_CONSTANT_N_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "N/m³",
            "phenomenon": "Units.AREA_SPRING_CONSTANT",
            "unitSystem": "Units.SI",
            "definition": "SPRING_CONSTANT_N_PER_M*SQ_M(-1)"
        },
        "AREA_SPRING_CONSTANT_KN_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "kN/m³",
            "phenomenon": "Units.AREA_SPRING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "SPRING_CONSTANT_KN_PER_M*SQ_M(-1)"
        },
        "AREA_SPRING_CONSTANT_KPF_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "kpf/ft³",
            "phenomenon": "Units.AREA_SPRING_CONSTANT",
            "unitSystem": "Units.USCUSTOM",
            "definition": "SPRING_CONSTANT_KPF_PER_FT*SQ_FT(-1)"
        },
        "M_PER_SEC_SQ": {
            "schemaItemType": "Unit",
            "label": "m/sec²",
            "phenomenon": "Units.ACCELERATION",
            "unitSystem": "Units.SI",
            "definition": "M*S(-2)"
        },
        "CM_PER_SEC_SQ": {
            "schemaItemType": "Unit",
            "label": "cm/sec²",
            "phenomenon": "Units.ACCELERATION",
            "unitSystem": "Units.METRIC",
            "definition": "CM*S(-2)"
        },
        "FT_PER_SEC_SQ": {
            "schemaItemType": "Unit",
            "label": "ft/sec²",
            "phenomenon": "Units.ACCELERATION",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*S(-2)"
        },
        "ARC_DEG": {
            "schemaItemType": "Unit",
            "label": "°",
            "description": "1/180",
            "phenomenon": "Units.ANGLE",
            "unitSystem": "Units.METRIC",
            "definition": "[PI]*RAD",
            "denominator": 180
        },
        "ARC_MINUTE": {
            "schemaItemType": "Unit",
            "label": "'",
            "description": "1/60",
            "phenomenon": "Units.ANGLE",
            "unitSystem": "Units.METRIC",
            "definition": "ARC_DEG",
            "denominator": 60
        },
        "ARC_SECOND": {
            "schemaItemType": "Unit",
            "label": "''",
            "description": "1/3600",
            "phenomenon": "Units.ANGLE",
            "unitSystem": "Units.METRIC",
            "definition": "ARC_DEG",
            "denominator": 3600
        },
        "ARC_QUADRANT": {
            "schemaItemType": "Unit",
            "label": "quadrants",
            "phenomenon": "Units.ANGLE",
            "unitSystem": "Units.METRIC",
            "definition": "[HALF_PI]*RAD"
        },
        "GRAD": {
            "schemaItemType": "Unit",
            "label": "grad",
            "description": "1/200",
            "phenomenon": "Units.ANGLE",
            "unitSystem": "Units.METRIC",
            "definition": "[PI]*RAD",
            "denominator": 200
        },
        "REVOLUTION": {
            "schemaItemType": "Unit",
            "label": "r",
            "phenomenon": "Units.ANGLE",
            "unitSystem": "Units.METRIC",
            "definition": "[TWO_PI]*RAD"
        },
        "HORIZONTAL_DIR_ARC_DEG": {
            "schemaItemType": "Unit",
            "label": "°",
            "description": "1/180",
            "phenomenon": "Units.HORIZONTAL_DIRECTION",
            "unitSystem": "Units.METRIC",
            "definition": "[PI]*HORIZONTAL_DIR_RAD",
            "denominator": 180
        },
        "HORIZONTAL_DIR_ARC_MINUTE": {
            "schemaItemType": "Unit",
            "label": "'",
            "description": "1/60",
            "phenomenon": "Units.HORIZONTAL_DIRECTION",
            "unitSystem": "Units.METRIC",
            "definition": "HORIZONTAL_DIR_ARC_DEG",
            "denominator": 60
        },
        "HORIZONTAL_DIR_ARC_SECOND": {
            "schemaItemType": "Unit",
            "label": "''",
            "description": "1/3600",
            "phenomenon": "Units.HORIZONTAL_DIRECTION",
            "unitSystem": "Units.METRIC",
            "definition": "HORIZONTAL_DIR_ARC_DEG",
            "denominator": 3600
        },
        "HORIZONTAL_DIR_GRAD": {
            "schemaItemType": "Unit",
            "label": "grad",
            "description": "1/200",
            "phenomenon": "Units.HORIZONTAL_DIRECTION",
            "unitSystem": "Units.METRIC",
            "definition": "[PI]*HORIZONTAL_DIR_RAD",
            "denominator": 200
        },
        "HORIZONTAL_DIR_MILLIRAD": {
            "schemaItemType": "Unit",
            "label": "mrad",
            "description": "1/1000",
            "phenomenon": "Units.HORIZONTAL_DIRECTION",
            "unitSystem": "Units.METRIC",
            "definition": "[PI]*HORIZONTAL_DIR_RAD",
            "denominator": 1000
        },
        "HORIZONTAL_DIR_REVOLUTION": {
            "schemaItemType": "Unit",
            "label": "r",
            "phenomenon": "Units.HORIZONTAL_DIRECTION",
            "unitSystem": "Units.METRIC",
            "definition": "[TWO_PI]*HORIZONTAL_DIR_RAD"
        },
        "SQ_M": {
            "schemaItemType": "Unit",
            "label": "m²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.SI",
            "definition": "M(2)"
        },
        "SQ_UM": {
            "schemaItemType": "Unit",
            "label": "um²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.METRIC",
            "definition": "UM(2)"
        },
        "SQ_MM": {
            "schemaItemType": "Unit",
            "label": "mm²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.METRIC",
            "definition": "MM(2)"
        },
        "SQ_CM": {
            "schemaItemType": "Unit",
            "label": "cm²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.METRIC",
            "definition": "CM(2)"
        },
        "SQ_DM": {
            "schemaItemType": "Unit",
            "label": "dm²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.METRIC",
            "definition": "DM(2)"
        },
        "SQ_KM": {
            "schemaItemType": "Unit",
            "label": "km²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.METRIC",
            "definition": "KM(2)"
        },
        "ARE": {
            "schemaItemType": "Unit",
            "label": "are",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.METRIC",
            "definition": "[HECTO]*M(2)"
        },
        "HECTARE": {
            "schemaItemType": "Unit",
            "label": "ha",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.METRIC",
            "definition": "[HECTO]*ARE"
        },
        "SQ_IN": {
            "schemaItemType": "Unit",
            "label": "in²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN(2)"
        },
        "SQ_FT": {
            "schemaItemType": "Unit",
            "label": "ft²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(2)"
        },
        "THOUSAND_SQ_FT": {
            "schemaItemType": "Unit",
            "label": "thousand ft²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[KILO]*FT(2)"
        },
        "SQ_YRD": {
            "schemaItemType": "Unit",
            "label": "yd²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "YRD(2)"
        },
        "SQ_MILE": {
            "schemaItemType": "Unit",
            "label": "mi²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "MILE(2)"
        },
        "SQ_CHAIN": {
            "schemaItemType": "Unit",
            "label": "chain²",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CHAIN(2)"
        },
        "ACRE": {
            "schemaItemType": "Unit",
            "label": "acres",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-9",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CHAIN(2)",
            "numerator": 10
        },
        "SQ_US_SURVEY_IN": {
            "schemaItemType": "Unit",
            "label": "in² (US Survey)",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_IN(2)"
        },
        "SQ_US_SURVEY_FT": {
            "schemaItemType": "Unit",
            "label": "ft² (US Survey)",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_FT(2)"
        },
        "SQ_US_SURVEY_YRD": {
            "schemaItemType": "Unit",
            "label": "yrd² (US Survey)",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_YRD(2)"
        },
        "SQ_US_SURVEY_MILE": {
            "schemaItemType": "Unit",
            "label": "mile² (US Survey)",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_MILE(2)"
        },
        "SQ_US_SURVEY_CHAIN": {
            "schemaItemType": "Unit",
            "label": "chain² (US Survey)",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_CHAIN(2)"
        },
        "US_SURVEY_ACRE": {
            "schemaItemType": "Unit",
            "label": "acre (US Survey)",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-9",
            "phenomenon": "Units.AREA",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_CHAIN(2)",
            "numerator": 10
        },
        "IN_MILE": {
            "schemaItemType": "Unit",
            "label": "in·mi",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "IN*MILE"
        },
        "FT_MILE": {
            "schemaItemType": "Unit",
            "label": "ft·mi",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "FT*MILE"
        },
        "FT_FT": {
            "schemaItemType": "Unit",
            "label": "ft·ft",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "FT*FT"
        },
        "IN_FT": {
            "schemaItemType": "Unit",
            "label": "in·ft",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "IN*FT"
        },
        "IN_M": {
            "schemaItemType": "Unit",
            "label": "in·m",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "IN*M"
        },
        "MM_KM": {
            "schemaItemType": "Unit",
            "label": "mm·km",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "MM*KM"
        },
        "MM_M": {
            "schemaItemType": "Unit",
            "label": "mm·m",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "MM*M"
        },
        "MM_MILE": {
            "schemaItemType": "Unit",
            "label": "mm·mi",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "MM*MILE"
        },
        "M_KM": {
            "schemaItemType": "Unit",
            "label": "m·km",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "M*KM"
        },
        "M_M": {
            "schemaItemType": "Unit",
            "label": "m·m",
            "phenomenon": "Units.PIPE_DIAMETER_LENGTH",
            "unitSystem": "Units.SI",
            "definition": "M*M"
        },
        "KG_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "kg/m³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.SI",
            "definition": "KG*M(-3)"
        },
        "KG_PER_CUB_CM": {
            "schemaItemType": "Unit",
            "label": "kg/cm³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "KG*CM(-3)"
        },
        "KG_PER_LITRE": {
            "schemaItemType": "Unit",
            "label": "kg/dm³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "KG*DM(-3)"
        },
        "G_PER_CUB_CM": {
            "schemaItemType": "Unit",
            "label": "g/cm³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "G*CM(-3)"
        },
        "MKG_PER_LITRE": {
            "schemaItemType": "Unit",
            "label": "µg/L",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "MKG*DM(-3)"
        },
        "MG_PER_LITRE": {
            "schemaItemType": "Unit",
            "label": "mg/L",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "MG*DM(-3)"
        },
        "LBM_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "lb/ft³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*FT(-3)"
        },
        "LBM_PER_GALLON": {
            "schemaItemType": "Unit",
            "label": "lb/gal",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*GALLON(-1)"
        },
        "LBM_PER_GALLON_IMPERIAL": {
            "schemaItemType": "Unit",
            "label": "lb/gal (imp)",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.IMPERIAL",
            "definition": "LBM*GALLON_IMPERIAL(-1)"
        },
        "LBM_PER_CUB_IN": {
            "schemaItemType": "Unit",
            "label": "lb/in³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*IN(-3)"
        },
        "LBM_PER_MILLION_GALLON": {
            "schemaItemType": "Unit",
            "label": "lb/million gal",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*[MEGA](-1)*GALLON(-1)"
        },
        "SLUG_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "slug/ft³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "SLUG*FT(-3)"
        },
        "KIP_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "kip/ft³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KIPM*FT(-3)"
        },
        "SHORT_TON_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "tn (short)/ft³",
            "phenomenon": "Units.DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "SHORT_TON_MASS*FT(-3)"
        },
        "N_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "N/m³",
            "phenomenon": "Units.FORCE_DENSITY",
            "unitSystem": "Units.SI",
            "definition": "N*M(-3)"
        },
        "KN_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "kN/m³",
            "phenomenon": "Units.FORCE_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*N*M(-3)"
        },
        "KPF_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "kpf/ft³",
            "phenomenon": "Units.FORCE_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF*FT(-3)"
        },
        "N_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "N/ft³",
            "phenomenon": "Units.FORCE_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "N*FT(-3)"
        },
        "KN_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "kN/ft³",
            "phenomenon": "Units.FORCE_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[KILO]*N*FT(-3)"
        },
        "PERSON_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "p/m²",
            "phenomenon": "Units.POPULATION_DENSITY",
            "unitSystem": "Units.SI",
            "definition": "PERSON*M(-2)"
        },
        "PERSON_PER_HECTARE": {
            "schemaItemType": "Unit",
            "label": "p/ha",
            "phenomenon": "Units.POPULATION_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "PERSON*HECTARE(-1)"
        },
        "PERSON_PER_SQ_KM": {
            "schemaItemType": "Unit",
            "label": "p/km²",
            "phenomenon": "Units.POPULATION_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "PERSON*KM(-2)"
        },
        "PERSON_PER_ACRE": {
            "schemaItemType": "Unit",
            "label": "p/acre",
            "phenomenon": "Units.POPULATION_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PERSON*ACRE(-1)"
        },
        "PERSON_PER_SQ_FT": {
            "schemaItemType": "Unit",
            "label": "p/ft²",
            "phenomenon": "Units.POPULATION_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PERSON*FT(-2)"
        },
        "PERSON_PER_SQ_MILE": {
            "schemaItemType": "Unit",
            "label": "p/mi²",
            "phenomenon": "Units.POPULATION_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PERSON*MILE(-2)"
        },
        "KILOAMPERE": {
            "schemaItemType": "Unit",
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            "phenomenon": "Units.CURRENT",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*A"
        },
        "MILLIAMPERE": {
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            "label": "mA",
            "phenomenon": "Units.CURRENT",
            "unitSystem": "Units.METRIC",
            "definition": "[MILLI]*A"
        },
        "MICROAMPERE": {
            "schemaItemType": "Unit",
            "label": "µA",
            "phenomenon": "Units.CURRENT",
            "unitSystem": "Units.METRIC",
            "definition": "[MICRO]*A"
        },
        "COULOMB": {
            "schemaItemType": "Unit",
            "label": "C",
            "phenomenon": "Units.ELECTRIC_CHARGE",
            "unitSystem": "Units.SI",
            "definition": "A*S"
        },
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            "label": "V",
            "phenomenon": "Units.ELECTRIC_POTENTIAL",
            "unitSystem": "Units.SI",
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        },
        "KILOVOLT": {
            "schemaItemType": "Unit",
            "label": "KV",
            "phenomenon": "Units.ELECTRIC_POTENTIAL",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*VOLT"
        },
        "MEGAVOLT": {
            "schemaItemType": "Unit",
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            "phenomenon": "Units.ELECTRIC_POTENTIAL",
            "unitSystem": "Units.METRIC",
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            "schemaItemType": "Unit",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.SI",
            "definition": "N*M"
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        "KJ": {
            "schemaItemType": "Unit",
            "label": "kJ",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.METRIC",
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        },
        "MEGAJ": {
            "schemaItemType": "Unit",
            "label": "MJ",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*J"
        },
        "GJ": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.METRIC",
            "definition": "[GIGA]*J"
        },
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            "schemaItemType": "Unit",
            "label": "ft*pdl",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PDL*FT"
        },
        "BTU": {
            "schemaItemType": "Unit",
            "label": "Btu",
            "description": "Is IT BTU.  http://physics.nist.gov/cuu/pdf/sp811.pdf, Appendix B.  See foot note #9: ",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.INTERNATIONAL",
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            "numerator": 1055.05585262
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        "KILOBTU": {
            "schemaItemType": "Unit",
            "label": "kBtu",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[KILO]*BTU"
        },
        "WATT_SECOND": {
            "schemaItemType": "Unit",
            "label": "Ws",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "W*S"
        },
        "KWH": {
            "schemaItemType": "Unit",
            "label": "kW·h",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "KW*HR"
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        "MEGAWH": {
            "schemaItemType": "Unit",
            "label": "MWh",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "MEGAW*HR"
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        "GWH": {
            "schemaItemType": "Unit",
            "label": "GWh",
            "phenomenon": "Units.WORK",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "GW*HR"
        },
        "J_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "J/m³",
            "phenomenon": "Units.ENERGY_DENSITY",
            "unitSystem": "Units.SI",
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        },
        "KJ_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "kJ/m³",
            "phenomenon": "Units.ENERGY_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "KJ*M(-3)"
        },
        "KWH_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "kW·h/m³",
            "phenomenon": "Units.ENERGY_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "KWH*M(-3)"
        },
        "KWH_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "kWh/ft³",
            "phenomenon": "Units.ENERGY_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KWH*FT(-3)"
        },
        "KWH_PER_MILLION_GALLON": {
            "schemaItemType": "Unit",
            "label": "kW·h/million gal",
            "phenomenon": "Units.ENERGY_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KWH*[MEGA](-1)*GALLON(-1)"
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        "J_PER_KG": {
            "schemaItemType": "Unit",
            "label": "J/kg",
            "phenomenon": "Units.SPECIFIC_ENERGY",
            "unitSystem": "Units.SI",
            "definition": "J*KG(-1)"
        },
        "KJ_PER_KG": {
            "schemaItemType": "Unit",
            "label": "kJ/kg",
            "phenomenon": "Units.SPECIFIC_ENERGY",
            "unitSystem": "Units.METRIC",
            "definition": "KJ*KG(-1)"
        },
        "MEGAJ_PER_KG": {
            "schemaItemType": "Unit",
            "label": "MJ/kg",
            "phenomenon": "Units.SPECIFIC_ENERGY",
            "unitSystem": "Units.METRIC",
            "definition": "MEGAJ*KG(-1)"
        },
        "BTU_PER_LBM": {
            "schemaItemType": "Unit",
            "label": "Btu/lb",
            "phenomenon": "Units.SPECIFIC_ENERGY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "BTU*LBM(-1)"
        },
        "J_PER_KG_K": {
            "schemaItemType": "Unit",
            "label": "J/(kg·ΔK)",
            "phenomenon": "Units.SPECIFIC_HEAT_CAPACITY",
            "unitSystem": "Units.SI",
            "definition": "J*KG(-1)*DELTA_KELVIN(-1)"
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        "BTU_PER_LBM_RANKINE": {
            "schemaItemType": "Unit",
            "label": "Btu/(lbm·Δ°R)",
            "phenomenon": "Units.SPECIFIC_HEAT_CAPACITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "BTU*LBM(-1)*DELTA_RANKINE(-1)"
        },
        "J_PER_G_CELSIUS": {
            "schemaItemType": "Unit",
            "label": "J/(g·Δ°C)",
            "phenomenon": "Units.SPECIFIC_HEAT_CAPACITY",
            "unitSystem": "Units.METRIC",
            "definition": "J*G(-1)*DELTA_CELSIUS(-1)"
        },
        "J_PER_MOL_K": {
            "schemaItemType": "Unit",
            "label": "J/(mol*K)",
            "phenomenon": "Units.SPECIFIC_HEAT_CAPACITY_MOLAR",
            "unitSystem": "Units.SI",
            "definition": "J*MOL(-1)*DELTA_KELVIN(-1)"
        },
        "J_PER_KMOL_K": {
            "schemaItemType": "Unit",
            "label": "J/(kmol·ΔK)",
            "phenomenon": "Units.SPECIFIC_HEAT_CAPACITY_MOLAR",
            "unitSystem": "Units.METRIC",
            "definition": "J*KMOL(-1)*DELTA_KELVIN(-1)"
        },
        "KJ_PER_KMOL_K": {
            "schemaItemType": "Unit",
            "label": "kJ/(kmol·ΔK)",
            "phenomenon": "Units.SPECIFIC_HEAT_CAPACITY_MOLAR",
            "unitSystem": "Units.METRIC",
            "definition": "KJ*KMOL(-1)*DELTA_KELVIN(-1)"
        },
        "BTU_PER_LB_MOL_RANKINE": {
            "schemaItemType": "Unit",
            "label": "Btu/(lb-mol·Δ°R)",
            "phenomenon": "Units.SPECIFIC_HEAT_CAPACITY_MOLAR",
            "unitSystem": "Units.USCUSTOM",
            "definition": "BTU*LB_MOL(-1)*DELTA_RANKINE(-1)"
        },
        "CUB_M_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "m³/s",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.SI",
            "definition": "M(3)*S(-1)"
        },
        "CUB_M_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "m³/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "M(3)*MIN(-1)"
        },
        "CUB_M_PER_HR": {
            "schemaItemType": "Unit",
            "label": "m³/h",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "M(3)*HR(-1)"
        },
        "CUB_M_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "m³/day",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "M(3)*DAY(-1)"
        },
        "LITRE_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "L/s",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "LITRE*S(-1)"
        },
        "LITRE_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "L/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "LITRE*MIN(-1)"
        },
        "LITRE_PER_HR": {
            "schemaItemType": "Unit",
            "label": "L/h",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "LITRE*HR(-1)"
        },
        "LITRE_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "L/day",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "LITRE*DAY(-1)"
        },
        "CUB_IN_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "in³/sec",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CUB_IN*S(-1)"
        },
        "CUB_IN_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "in³/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CUB_IN*MIN(-1)"
        },
        "CUB_FT_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "ft³/s",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CUB_FT*S(-1)"
        },
        "CUB_FT_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "ft³/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CUB_FT*MIN(-1)"
        },
        "CUB_FT_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "ft³/day",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CUB_FT*DAY(-1)"
        },
        "ACRE_FT_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "acre·ft/day",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE_FT*DAY(-1)"
        },
        "ACRE_FT_PER_HR": {
            "schemaItemType": "Unit",
            "label": "acre·ft/h",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE_FT*HR(-1)"
        },
        "ACRE_FT_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "acre·ft/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE_FT*MIN(-1)"
        },
        "ACRE_IN_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "acre_in/day",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE_IN*DAY(-1)"
        },
        "ACRE_IN_PER_HR": {
            "schemaItemType": "Unit",
            "label": "acre·in/h",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE_IN*HR(-1)"
        },
        "ACRE_IN_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "acre·in/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE_IN*MIN(-1)"
        },
        "GALLON_IMPERIAL_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "gal (imp)/s",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.IMPERIAL",
            "definition": "GALLON_IMPERIAL*S(-1)"
        },
        "GALLON_IMPERIAL_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "gal (imp)/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.IMPERIAL",
            "definition": "GALLON_IMPERIAL*MIN(-1)"
        },
        "GALLON_IMPERIAL_PER_HR": {
            "schemaItemType": "Unit",
            "label": "gal (imp)/h",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.IMPERIAL",
            "definition": "GALLON_IMPERIAL*HR(-1)"
        },
        "GALLON_IMPERIAL_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "gal (imp)/day",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.IMPERIAL",
            "definition": "GALLON_IMPERIAL*DAY(-1)"
        },
        "GALLON_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "gal/s",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*S(-1)"
        },
        "GALLON_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "gal/min",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*MIN(-1)"
        },
        "GALLON_PER_HR": {
            "schemaItemType": "Unit",
            "label": "gal/h",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*HR(-1)"
        },
        "GALLON_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "gal/day",
            "phenomenon": "Units.VOLUMETRIC_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*DAY(-1)"
        },
        "HZ": {
            "schemaItemType": "Unit",
            "label": "Hz",
            "phenomenon": "Units.FREQUENCY",
            "unitSystem": "Units.SI",
            "definition": "S(-1)"
        },
        "KHZ": {
            "schemaItemType": "Unit",
            "label": "KHz",
            "phenomenon": "Units.FREQUENCY",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*S(-1)"
        },
        "MHZ": {
            "schemaItemType": "Unit",
            "label": "MHz",
            "phenomenon": "Units.FREQUENCY",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*S(-1)"
        },
        "CUB_M_PER_SQ_M_SEC": {
            "schemaItemType": "Unit",
            "label": "m³/(m²*sec)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.SI",
            "definition": "M*S(-1)"
        },
        "CUB_M_PER_SQ_M_DAY": {
            "schemaItemType": "Unit",
            "label": "m³/(m²·day)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.METRIC",
            "definition": "M*DAY(-1)"
        },
        "CUB_M_PER_HECTARE_DAY": {
            "schemaItemType": "Unit",
            "label": "m³/(ha·day)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.METRIC",
            "definition": "CUB_M*HECTARE(-1)*DAY(-1)"
        },
        "CUB_M_PER_SQ_KM_DAY": {
            "schemaItemType": "Unit",
            "label": "m³/(km²·day)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.METRIC",
            "definition": "CUB_M*KM(-2)*DAY(-1)"
        },
        "LITRE_PER_SQ_M_SEC": {
            "schemaItemType": "Unit",
            "label": "L/(m²·s)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.METRIC",
            "definition": "LITRE*M(-2)*S(-1)"
        },
        "CUB_FT_PER_SQ_FT_MIN": {
            "schemaItemType": "Unit",
            "label": "ft³/(ft²·min)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*MIN(-1)"
        },
        "CUB_FT_PER_SQ_FT_SEC": {
            "schemaItemType": "Unit",
            "label": "ft³/(ft²·s)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*S(-1)"
        },
        "CUB_FT_PER_SQ_MILE_SEC": {
            "schemaItemType": "Unit",
            "label": "ft³/(mi²·s)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(3)*MILE(-2)*S(-1)"
        },
        "CUB_FT_PER_ACRE_SEC": {
            "schemaItemType": "Unit",
            "label": "ft³/(acres·s)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(3)*ACRE(-1)*S(-1)"
        },
        "GALLON_PER_ACRE_DAY": {
            "schemaItemType": "Unit",
            "label": "gal/(acre·day)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*DAY(-1)*ACRE(-1)"
        },
        "GALLON_PER_ACRE_MIN": {
            "schemaItemType": "Unit",
            "label": "gal/(acre·min)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*MIN(-1)*ACRE(-1)"
        },
        "GALLON_PER_SQ_FT_MIN": {
            "schemaItemType": "Unit",
            "label": "gal/(ft²·min)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*MIN(-1)*FT(-2)"
        },
        "GALLON_PER_SQ_FT_DAY": {
            "schemaItemType": "Unit",
            "label": "gal/(ft²·day)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*DAY(-1)*FT(-2)"
        },
        "GALLON_PER_SQ_MILE_MIN": {
            "schemaItemType": "Unit",
            "label": "gal/(mi²·min)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*MIN(-1)*MILE(-2)"
        },
        "GALLON_PER_SQ_MILE_DAY": {
            "schemaItemType": "Unit",
            "label": "gal/(mi²·day)",
            "phenomenon": "Units.FLOW_DENSITY_PER_AREA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GALLON*DAY(-1)*MILE(-2)"
        },
        "KG_PER_KG": {
            "schemaItemType": "Unit",
            "label": "kg/kg",
            "phenomenon": "Units.MASS_RATIO",
            "unitSystem": "Units.SI",
            "definition": "KG*KG(-1)"
        },
        "GRM_PER_LBM": {
            "schemaItemType": "Unit",
            "label": "gr/lb",
            "phenomenon": "Units.MASS_RATIO",
            "unitSystem": "Units.USCUSTOM",
            "definition": "GRM*LBM(-1)"
        },
        "KG_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "kg/s",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.SI",
            "definition": "KG*S(-1)"
        },
        "KG_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "kg/min",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "KG*MIN(-1)"
        },
        "KG_PER_HR": {
            "schemaItemType": "Unit",
            "label": "kg/h",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "KG*HR(-1)"
        },
        "KG_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "kg/day",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "KG*DAY(-1)"
        },
        "G_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "g/s",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "G*S(-1)"
        },
        "G_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "g/min",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "G*MIN(-1)"
        },
        "G_PER_HR": {
            "schemaItemType": "Unit",
            "label": "g/h",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "G*HR(-1)"
        },
        "MG_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "mg/s",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MG*S(-1)"
        },
        "MG_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "mg/min",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MG*MIN(-1)"
        },
        "MG_PER_HR": {
            "schemaItemType": "Unit",
            "label": "mg/h",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MG*HR(-1)"
        },
        "MG_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "mg/day",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MG*DAY(-1)"
        },
        "MKG_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "µg/s",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MKG*S(-1)"
        },
        "MKG_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "µg/min",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MKG*MIN(-1)"
        },
        "MKG_PER_HR": {
            "schemaItemType": "Unit",
            "label": "µg/h",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MKG*HR(-1)"
        },
        "MKG_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "µg/day",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "MKG*DAY(-1)"
        },
        "TONNE_PER_HR": {
            "schemaItemType": "Unit",
            "label": "tph",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "TONNE*HR(-1)"
        },
        "LBM_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "lb/s",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*S(-1)"
        },
        "LBM_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "lb/min",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*MIN(-1)"
        },
        "LBM_PER_HR": {
            "schemaItemType": "Unit",
            "label": "lb/h",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*HR(-1)"
        },
        "LBM_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "lb/day",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*DAY(-1)"
        },
        "SHORT_TON_PER_HR": {
            "schemaItemType": "Unit",
            "label": "tph",
            "phenomenon": "Units.MASS_FLOW",
            "unitSystem": "Units.USCUSTOM",
            "definition": "SHORT_TON_MASS*HR(-1)"
        },
        "MOL_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "mol/s",
            "phenomenon": "Units.MOLAR_FLOW",
            "unitSystem": "Units.SI",
            "definition": "MOL*S(-1)"
        },
        "KMOL_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "kmol/s",
            "phenomenon": "Units.MOLAR_FLOW",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*MOL*S(-1)"
        },
        "N": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.SI",
            "definition": "KG*M*S(-2)"
        },
        "DECAN": {
            "schemaItemType": "Unit",
            "label": "daN",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.SI",
            "definition": "[DECA]*N"
        },
        "KN": {
            "schemaItemType": "Unit",
            "label": "kN",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*N"
        },
        "MN": {
            "schemaItemType": "Unit",
            "label": "mN",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.METRIC",
            "definition": "[MILLI]*N"
        },
        "MEGAN": {
            "schemaItemType": "Unit",
            "label": "MN",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*N"
        },
        "KGF": {
            "schemaItemType": "Unit",
            "label": "kgf",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.METRIC",
            "definition": "[STD_G]*KG"
        },
        "DYNE": {
            "schemaItemType": "Unit",
            "label": "dyn",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.METRIC",
            "definition": "G*CM*S(-2)"
        },
        "PDL": {
            "schemaItemType": "Unit",
            "label": "pdl",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*FT*S(-2)"
        },
        "SHORT_TON_FORCE": {
            "schemaItemType": "Unit",
            "label": "tnf (short)",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[STD_G]*SHORT_TON_MASS"
        },
        "LONG_TON_FORCE": {
            "schemaItemType": "Unit",
            "label": "tnf (long)",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[STD_G]*LONG_TON_MASS"
        },
        "LBF": {
            "schemaItemType": "Unit",
            "label": "lbf",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[STD_G]*LBM"
        },
        "OZF": {
            "schemaItemType": "Unit",
            "label": "ozf",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[STD_G]*OZM"
        },
        "KPF": {
            "schemaItemType": "Unit",
            "label": "kpf",
            "phenomenon": "Units.FORCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[KILO]*LBF"
        },
        "W_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "W/m²",
            "phenomenon": "Units.HEAT_FLUX_DENSITY",
            "unitSystem": "Units.SI",
            "definition": "W*M(-2)"
        },
        "W_PER_SQ_M_K": {
            "schemaItemType": "Unit",
            "label": "W/(m²·ΔK)",
            "phenomenon": "Units.HEAT_TRANSFER",
            "unitSystem": "Units.SI",
            "definition": "W*M(-2)*DELTA_KELVIN(-1)"
        },
        "W_PER_SQ_M_CELSIUS": {
            "schemaItemType": "Unit",
            "label": "W/(m²·Δ°C)",
            "phenomenon": "Units.HEAT_TRANSFER",
            "unitSystem": "Units.METRIC",
            "definition": "W*M(-2)*DELTA_CELSIUS(-1)"
        },
        "BTU_PER_SQ_FT_HR_FAHRENHEIT": {
            "schemaItemType": "Unit",
            "label": "Btu/(ft²·h·Δ°F)",
            "phenomenon": "Units.HEAT_TRANSFER",
            "unitSystem": "Units.USCUSTOM",
            "definition": "BTU*FT(-2)*HR(-1)*DELTA_FAHRENHEIT(-1)"
        },
        "KG_PER_M": {
            "schemaItemType": "Unit",
            "label": "kg/m",
            "phenomenon": "Units.LINEAR_DENSITY",
            "unitSystem": "Units.SI",
            "definition": "KG*M(-1)"
        },
        "KG_PER_MM": {
            "schemaItemType": "Unit",
            "label": "kg/mm",
            "phenomenon": "Units.LINEAR_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "KG*MM(-1)"
        },
        "LBM_PER_FT": {
            "schemaItemType": "Unit",
            "label": "lb/ft",
            "phenomenon": "Units.LINEAR_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*FT(-1)"
        },
        "N_PER_M": {
            "schemaItemType": "Unit",
            "label": "N/m",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.SI",
            "definition": "N*M(-1)"
        },
        "KN_PER_M": {
            "schemaItemType": "Unit",
            "label": "kN/m",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.METRIC",
            "definition": "KN*M(-1)"
        },
        "MEGAN_PER_M": {
            "schemaItemType": "Unit",
            "label": "MN/m",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.METRIC",
            "definition": "MEGAN*M(-1)"
        },
        "N_PER_MM": {
            "schemaItemType": "Unit",
            "label": "N/mm",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.METRIC",
            "definition": "N*MM(-1)"
        },
        "LBF_PER_IN": {
            "schemaItemType": "Unit",
            "label": "lbf/in",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*IN(-1)"
        },
        "LBF_PER_FT": {
            "schemaItemType": "Unit",
            "label": "lbf/ft",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*FT(-1)"
        },
        "KGF_PER_M": {
            "schemaItemType": "Unit",
            "label": "kgf/m",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.METRIC",
            "definition": "KGF*M(-1)"
        },
        "KPF_PER_FT": {
            "schemaItemType": "Unit",
            "label": "kpf/ft",
            "phenomenon": "Units.LINEAR_LOAD",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF*FT(-1)"
        },
        "PER_M": {
            "schemaItemType": "Unit",
            "label": "1/m",
            "phenomenon": "Units.LINEAR_RATE",
            "unitSystem": "Units.SI",
            "definition": "M(-1)"
        },
        "PER_MM": {
            "schemaItemType": "Unit",
            "label": "1/mm",
            "phenomenon": "Units.LINEAR_RATE",
            "unitSystem": "Units.METRIC",
            "definition": "MM(-1)"
        },
        "PER_KM": {
            "schemaItemType": "Unit",
            "label": "1/km",
            "phenomenon": "Units.LINEAR_RATE",
            "unitSystem": "Units.METRIC",
            "definition": "KM(-1)"
        },
        "PER_FT": {
            "schemaItemType": "Unit",
            "label": "1/ft",
            "phenomenon": "Units.LINEAR_RATE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(-1)"
        },
        "PER_MILE": {
            "schemaItemType": "Unit",
            "label": "1/mile",
            "phenomenon": "Units.LINEAR_RATE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "MILE(-1)"
        },
        "PER_THOUSAND_FT": {
            "schemaItemType": "Unit",
            "label": "1/1000 ft",
            "phenomenon": "Units.LINEAR_RATE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(-1)",
            "numerator": 0.001
        },
        "N_M": {
            "schemaItemType": "Unit",
            "label": "N·m",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.SI",
            "definition": "N*M*RAD(-1)"
        },
        "KN_M": {
            "schemaItemType": "Unit",
            "label": "kN·m",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "KN*M*RAD(-1)"
        },
        "MEGAN_M": {
            "schemaItemType": "Unit",
            "label": "MN·m",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "MEGAN*M*RAD(-1)"
        },
        "N_CM": {
            "schemaItemType": "Unit",
            "label": "N·cm",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "N*CM*RAD(-1)"
        },
        "LBF_FT": {
            "schemaItemType": "Unit",
            "label": "lbf·ft",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*FT*RAD(-1)"
        },
        "LBF_IN": {
            "schemaItemType": "Unit",
            "label": "lbf·in",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*IN*RAD(-1)"
        },
        "KGF_M": {
            "schemaItemType": "Unit",
            "label": "kgf·m",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "KGF*M*RAD(-1)"
        },
        "KPF_FT": {
            "schemaItemType": "Unit",
            "label": "kpf·ft",
            "phenomenon": "Units.TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF*FT*RAD(-1)"
        },
        "N_M_PER_M": {
            "schemaItemType": "Unit",
            "label": "N·m/m",
            "phenomenon": "Units.LINEAR_TORQUE",
            "unitSystem": "Units.SI",
            "definition": "N_M*M(-1)"
        },
        "KN_M_PER_M": {
            "schemaItemType": "Unit",
            "label": "kN·m/m",
            "phenomenon": "Units.LINEAR_TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "KN_M*M(-1)"
        },
        "MEGAN_M_PER_M": {
            "schemaItemType": "Unit",
            "label": "MN·m/m",
            "phenomenon": "Units.LINEAR_TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "MEGAN_M*M(-1)"
        },
        "N_CM_PER_CM": {
            "schemaItemType": "Unit",
            "label": "N·cm/cm",
            "phenomenon": "Units.LINEAR_TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "N_CM*CM(-1)"
        },
        "LBF_IN_PER_IN": {
            "schemaItemType": "Unit",
            "label": "lbf·in/in",
            "phenomenon": "Units.LINEAR_TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF_IN*IN(-1)"
        },
        "LBF_FT_PER_FT": {
            "schemaItemType": "Unit",
            "label": "lbf·ft/ft",
            "phenomenon": "Units.LINEAR_TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF_FT*FT(-1)"
        },
        "KPF_FT_PER_FT": {
            "schemaItemType": "Unit",
            "label": "kpf·ft/ft",
            "phenomenon": "Units.LINEAR_TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF_FT*FT(-1)"
        },
        "N_M_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "N·m/m²",
            "phenomenon": "Units.AREA_TORQUE",
            "unitSystem": "Units.SI",
            "definition": "N_M*M(-2)"
        },
        "KN_M_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "kN·m/m²",
            "phenomenon": "Units.AREA_TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "KN_M*M(-2)"
        },
        "MEGAN_M_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "MN·m/m²",
            "phenomenon": "Units.AREA_TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "MEGAN_M*M(-2)"
        },
        "N_CM_PER_SQ_CM": {
            "schemaItemType": "Unit",
            "label": "N·cm/cm²",
            "phenomenon": "Units.AREA_TORQUE",
            "unitSystem": "Units.METRIC",
            "definition": "N_CM*CM(-2)"
        },
        "LBF_IN_PER_SQ_IN": {
            "schemaItemType": "Unit",
            "label": "lbf·in/in²",
            "phenomenon": "Units.AREA_TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF_IN*IN(-2)"
        },
        "LBF_FT_PER_SQ_FT": {
            "schemaItemType": "Unit",
            "label": "lbf·ft/ft²",
            "phenomenon": "Units.AREA_TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF_FT*FT(-2)"
        },
        "KPF_FT_PER_SQ_FT": {
            "schemaItemType": "Unit",
            "label": "kpf·ft/ft²",
            "phenomenon": "Units.AREA_TORQUE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF_FT*FT(-2)"
        },
        "CUB_M_PER_MOL": {
            "schemaItemType": "Unit",
            "label": "m³/mol",
            "phenomenon": "Units.MOLAR_VOLUME",
            "unitSystem": "Units.SI",
            "definition": "CUB_M*MOL(-1)"
        },
        "CUB_M_PER_KMOL": {
            "schemaItemType": "Unit",
            "label": "m³/kmol",
            "phenomenon": "Units.MOLAR_VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "CUB_M*[KILO](-1)*MOL(-1)"
        },
        "CUB_FT_PER_LB_MOL": {
            "schemaItemType": "Unit",
            "label": "ft³/lb-mol",
            "phenomenon": "Units.MOLAR_VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "CUB_FT*LB_MOL(-1)"
        },
        "MOL_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "mol/m³",
            "phenomenon": "Units.MOLAR_CONCENTRATION",
            "unitSystem": "Units.SI",
            "definition": "MOL*CUB_M(-1)"
        },
        "KMOL_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "kmol/m³",
            "phenomenon": "Units.MOLAR_CONCENTRATION",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*MOL*CUB_M(-1)"
        },
        "MOL_PER_CUB_DM": {
            "schemaItemType": "Unit",
            "label": "mol/dm³",
            "phenomenon": "Units.MOLAR_CONCENTRATION",
            "unitSystem": "Units.METRIC",
            "definition": "MOL*CUB_DM(-1)"
        },
        "MICROMOL_PER_CUB_DM": {
            "schemaItemType": "Unit",
            "label": "µmol/dm³",
            "phenomenon": "Units.MOLAR_CONCENTRATION",
            "unitSystem": "Units.METRIC",
            "definition": "[MICRO]*MOL*CUB_DM(-1)"
        },
        "NMOL_PER_CUB_DM": {
            "schemaItemType": "Unit",
            "label": "nmol/dm³",
            "phenomenon": "Units.MOLAR_CONCENTRATION",
            "unitSystem": "Units.METRIC",
            "definition": "[NANO]*MOL*CUB_DM(-1)"
        },
        "PICOMOL_PER_CUB_DM": {
            "schemaItemType": "Unit",
            "label": "picomol/dm³",
            "phenomenon": "Units.MOLAR_CONCENTRATION",
            "unitSystem": "Units.METRIC",
            "definition": "[PICO]*MOL*CUB_DM(-1)"
        },
        "MOL_PER_CUB_FT": {
            "schemaItemType": "Unit",
            "label": "mol/ft³",
            "phenomenon": "Units.MOLAR_CONCENTRATION",
            "unitSystem": "Units.USCUSTOM",
            "definition": "MOL*CUB_FT(-1)"
        },
        "MM_TO_THE_FOURTH": {
            "schemaItemType": "Unit",
            "label": "mm⁴",
            "phenomenon": "Units.AREA_MOMENT_INERTIA",
            "unitSystem": "Units.METRIC",
            "definition": "MM(4)"
        },
        "M_TO_THE_FOURTH": {
            "schemaItemType": "Unit",
            "label": "m⁴",
            "phenomenon": "Units.AREA_MOMENT_INERTIA",
            "unitSystem": "Units.SI",
            "definition": "M(4)"
        },
        "CM_TO_THE_FOURTH": {
            "schemaItemType": "Unit",
            "label": "cm⁴",
            "phenomenon": "Units.AREA_MOMENT_INERTIA",
            "unitSystem": "Units.METRIC",
            "definition": "CM(4)"
        },
        "IN_TO_THE_FOURTH": {
            "schemaItemType": "Unit",
            "label": "in⁴",
            "phenomenon": "Units.AREA_MOMENT_INERTIA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN(4)"
        },
        "FT_TO_THE_FOURTH": {
            "schemaItemType": "Unit",
            "label": "ft⁴",
            "phenomenon": "Units.AREA_MOMENT_INERTIA",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(4)"
        },
        "W": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.POWER",
            "unitSystem": "Units.SI",
            "definition": "N*M*S(-1)"
        },
        "KW": {
            "schemaItemType": "Unit",
            "label": "kW",
            "phenomenon": "Units.POWER",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*W"
        },
        "MEGAW": {
            "schemaItemType": "Unit",
            "label": "MW",
            "phenomenon": "Units.POWER",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*W"
        },
        "GW": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.POWER",
            "unitSystem": "Units.METRIC",
            "definition": "[GIGA]*W"
        },
        "BTU_PER_HR": {
            "schemaItemType": "Unit",
            "label": "Btu/h",
            "phenomenon": "Units.POWER",
            "unitSystem": "Units.USCUSTOM",
            "definition": "BTU*HR(-1)"
        },
        "KILOBTU_PER_HR": {
            "schemaItemType": "Unit",
            "label": "kBtu/h",
            "phenomenon": "Units.POWER",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[KILO]*BTU*HR(-1)"
        },
        "HP": {
            "schemaItemType": "Unit",
            "label": "hp",
            "description": "Exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.POWER",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*FT*S(-1)",
            "numerator": 550
        },
        "PA": {
            "schemaItemType": "Unit",
            "label": "N/m²",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.SI",
            "definition": "N*M(-2)"
        },
        "PA_GAUGE": {
            "schemaItemType": "Unit",
            "label": "Pa (gauge)",
            "description": "Offset is one standard atmosphere in PA.  Offset is exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  ",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "PA",
            "numerator": 1,
            "offset": 101325
        },
        "HECTOPASCAL": {
            "schemaItemType": "Unit",
            "label": "hPa",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "[HECTO]*PA"
        },
        "KILOPASCAL": {
            "schemaItemType": "Unit",
            "label": "kPa",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*PA"
        },
        "MICROPASCAL": {
            "schemaItemType": "Unit",
            "label": "µPa",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "[MICRO]*PA"
        },
        "KILOPASCAL_GAUGE": {
            "schemaItemType": "Unit",
            "label": "kPa (Gauge)",
            "description": "Offset is one standard atmosphere (101325 PA) converted to kilopascal.  Offset is exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  ",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "[KILO]*PA",
            "numerator": 1,
            "offset": 101.325
        },
        "MEGAPASCAL": {
            "schemaItemType": "Unit",
            "label": "MPa",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*PA"
        },
        "MEGAPASCAL_GAUGE": {
            "schemaItemType": "Unit",
            "label": "MPa (Gauge)",
            "description": "Offset is one standard atmosphere (101325 PA) converted to megapascal.  Offset is exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  ",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "[MEGA]*PA",
            "numerator": 1,
            "offset": 0.101325
        },
        "AT": {
            "schemaItemType": "Unit",
            "label": "kgf/cm²",
            "description": "Exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "KGF*CM(-2)"
        },
        "AT_GAUGE": {
            "schemaItemType": "Unit",
            "label": "kgf/cm² (Gauge)",
            "description": "Offset is one standard atmosphere (101325 PA) converted to atmosphere-technical (AT).  Offset is exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  ",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "AT",
            "offset": 1.033227452799886
        },
        "KGF_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "kgf/m²",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "KGF*M(-2)"
        },
        "ATM": {
            "schemaItemType": "Unit",
            "label": "atm",
            "description": "Standard atmosphere, see AT for atmosphere-technical.  Exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  ",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "PA",
            "numerator": 101325
        },
        "BAR": {
            "schemaItemType": "Unit",
            "label": "bar",
            "description": "Exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  ",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "PA",
            "numerator": 100000
        },
        "BAR_GAUGE": {
            "schemaItemType": "Unit",
            "label": "bar (Gauge)",
            "description": "Offset is one standard atmosphere converted to BAR.  Offset is exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  ",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.INDUSTRIAL",
            "definition": "PA",
            "numerator": 100000,
            "offset": 1.01325
        },
        "MBAR": {
            "schemaItemType": "Unit",
            "label": "mBar",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "[MILLI]*BAR"
        },
        "BARYE": {
            "schemaItemType": "Unit",
            "label": "ba",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "DYNE*CM(-2)"
        },
        "PSI": {
            "schemaItemType": "Unit",
            "label": "lbf/in²",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*IN(-2)"
        },
        "PSF": {
            "schemaItemType": "Unit",
            "label": "lbf/ft²",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*FT(-2)"
        },
        "PSIG": {
            "schemaItemType": "Unit",
            "label": "lbf/in² (Gauge)",
            "description": "Offset is one standard atmosphere (101325 PA) converted to PSI",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*IN(-2)",
            "numerator": 1,
            "offset": 14.695948775513449
        },
        "KSI": {
            "schemaItemType": "Unit",
            "label": "ksi",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF*IN(-2)"
        },
        "KSF": {
            "schemaItemType": "Unit",
            "label": "ksf",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF*FT(-2)"
        },
        "LBF_PER_SQ_FT": {
            "schemaItemType": "Unit",
            "label": "lbf/ft²",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBF*FT(-2)"
        },
        "TORR": {
            "schemaItemType": "Unit",
            "label": "torr",
            "description": "See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B. for approx conversion and Table 11 for a reference to the exact conversion",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 101325,
            "denominator": 760
        },
        "M_H2O": {
            "schemaItemType": "Unit",
            "label": "mH2O (Conv)",
            "description": "Meter of H2O Conventional",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*MM_H2O"
        },
        "MM_H2O": {
            "schemaItemType": "Unit",
            "label": "mmH2O (Conv)",
            "description": "Millimeter of H2O Conventional, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "PA",
            "numerator": 9.80665
        },
        "MM_HG_AT_32F": {
            "schemaItemType": "Unit",
            "label": "mmHg@32°F",
            "description": "See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.  Used centimeter of mercury (0 C) to pascal",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.METRIC",
            "definition": "PA",
            "numerator": 133.322
        },
        "FT_H2O": {
            "schemaItemType": "Unit",
            "label": "ft H2O (Conv)",
            "description": "foot of H2O Conventional, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 2989.067
        },
        "IN_H2O_AT_32F": {
            "schemaItemType": "Unit",
            "label": "inH2O@32°F",
            "description": "Inch of H2O at 32 Fahrenheit, Water is assumed to be in a liquid state. Equal to water at 0C.  No verified source",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 249.1083
        },
        "IN_H2O_AT_39_2F": {
            "schemaItemType": "Unit",
            "label": "inH2O@39.2°F",
            "description": "See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 249.082
        },
        "IN_H2O_AT_60F": {
            "schemaItemType": "Unit",
            "label": "inH2O@60°F",
            "description": "See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 248.84
        },
        "IN_HG": {
            "schemaItemType": "Unit",
            "label": "inHg (Conv)",
            "description": "Inch of HG conventional, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 3386.389
        },
        "IN_HG_AT_32F": {
            "schemaItemType": "Unit",
            "label": "inHg@32°F",
            "description": "See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 3386.38
        },
        "IN_HG_AT_60F": {
            "schemaItemType": "Unit",
            "label": "inHg@60°F",
            "description": "See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.PRESSURE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "PA",
            "numerator": 3376.85
        },
        "PA_PER_M": {
            "schemaItemType": "Unit",
            "label": "Pa/m",
            "phenomenon": "Units.PRESSURE_GRADIENT",
            "unitSystem": "Units.SI",
            "definition": "PA*M(-1)"
        },
        "BAR_PER_KM": {
            "schemaItemType": "Unit",
            "label": "bar/km",
            "phenomenon": "Units.PRESSURE_GRADIENT",
            "unitSystem": "Units.METRIC",
            "definition": "BAR*KM(-1)"
        },
        "PERCENT": {
            "schemaItemType": "Unit",
            "label": "%",
            "description": "Unit used to show a ratio as a percentage in the UI.",
            "phenomenon": "Units.PERCENTAGE",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "ONE"
        },
        "DECIMAL_PERCENT": {
            "schemaItemType": "Unit",
            "label": "decimal percent",
            "description": "Unit suitable for storing a decimal number that represents an unspecified ratio.",
            "phenomenon": "Units.PERCENTAGE",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "PERCENT",
            "numerator": 100
        },
        "PROBABILITY_FRACTION": {
            "schemaItemType": "Unit",
            "label": "",
            "phenomenon": "Units.PROBABILITY",
            "unitSystem": "Units.SI",
            "definition": "ONE"
        },
        "PROBABILITY_PERCENT": {
            "schemaItemType": "Unit",
            "label": "%",
            "phenomenon": "Units.PROBABILITY",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "PROBABILITY_FRACTION",
            "denominator": 100
        },
        "M_PER_M": {
            "schemaItemType": "Unit",
            "label": "m/m",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.SI",
            "definition": "M*M(-1)"
        },
        "CM_PER_M": {
            "schemaItemType": "Unit",
            "label": "cm/m",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.METRIC",
            "definition": "CM*M(-1)"
        },
        "MM_PER_M": {
            "schemaItemType": "Unit",
            "label": "mm/m",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.METRIC",
            "definition": "MM*M(-1)"
        },
        "M_PER_KM": {
            "schemaItemType": "Unit",
            "label": "m/km",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.METRIC",
            "definition": "M*KM(-1)"
        },
        "FT_PER_THOUSAND_FOOT": {
            "schemaItemType": "Unit",
            "label": "ft/1000ft",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*[KILO](-1)*FT(-1)"
        },
        "FT_PER_FT": {
            "schemaItemType": "Unit",
            "label": "ft/ft",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*FT(-1)"
        },
        "IN_PER_FT": {
            "schemaItemType": "Unit",
            "label": "in/ft",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN*FT(-1)"
        },
        "FT_PER_IN": {
            "schemaItemType": "Unit",
            "label": "ft/in",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*IN(-1)"
        },
        "FT_PER_MILE": {
            "schemaItemType": "Unit",
            "label": "ft/mi",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*MILE(-1)"
        },
        "VERTICAL_PER_HORIZONTAL": {
            "schemaItemType": "Unit",
            "label": "slope",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "M_PER_M"
        },
        "PERCENT_SLOPE": {
            "schemaItemType": "Unit",
            "label": "%",
            "phenomenon": "Units.SLOPE",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "DECIMAL_PERCENT(-1)*M_PER_M"
        },
        "HORIZONTAL_PER_VERTICAL": {
            "schemaItemType": "InvertedUnit",
            "invertsUnit": "Units.VERTICAL_PER_HORIZONTAL",
            "unitSystem": "Units.INTERNATIONAL"
        },
        "FT_HORIZONTAL_PER_FT_VERTICAL": {
            "schemaItemType": "InvertedUnit",
            "invertsUnit": "Units.FT_PER_FT",
            "unitSystem": "Units.USCUSTOM"
        },
        "M_HORIZONTAL_PER_M_VERTICAL": {
            "schemaItemType": "InvertedUnit",
            "invertsUnit": "Units.M_PER_M",
            "unitSystem": "Units.SI"
        },
        "KG_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "kg/m²",
            "phenomenon": "Units.SURFACE_DENSITY",
            "unitSystem": "Units.SI",
            "definition": "KG*M(-2)"
        },
        "G_PER_SQ_M": {
            "schemaItemType": "Unit",
            "label": "g/m²",
            "phenomenon": "Units.SURFACE_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "G*M(-2)"
        },
        "KG_PER_HECTARE": {
            "schemaItemType": "Unit",
            "label": "kg/ha",
            "phenomenon": "Units.SURFACE_DENSITY",
            "unitSystem": "Units.METRIC",
            "definition": "KG*HECTARE(-1)"
        },
        "LBM_PER_ACRE": {
            "schemaItemType": "Unit",
            "label": "lb/acre",
            "phenomenon": "Units.SURFACE_DENSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*ACRE(-1)"
        },
        "W_PER_M_K": {
            "schemaItemType": "Unit",
            "label": "W/(m·K)",
            "phenomenon": "Units.THERMAL_CONDUCTIVITY",
            "unitSystem": "Units.SI",
            "definition": "W*M(-1)*DELTA_KELVIN(-1)"
        },
        "W_PER_M_C": {
            "schemaItemType": "Unit",
            "label": "W/(m·Δ°C)",
            "phenomenon": "Units.THERMAL_CONDUCTIVITY",
            "unitSystem": "Units.METRIC",
            "definition": "W*M(-1)*DELTA_CELSIUS(-1)"
        },
        "BTU_IN_PER_SQ_FT_HR_FAHRENHEIT": {
            "schemaItemType": "Unit",
            "label": "Btu·in/(ft²·h·Δ°F)",
            "phenomenon": "Units.THERMAL_CONDUCTIVITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "BTU*IN*FT(-2)*HR(-1)*DELTA_FAHRENHEIT(-1)"
        },
        "SQ_M_KELVIN_PER_WATT": {
            "schemaItemType": "Unit",
            "label": "m²·ΔK/W",
            "phenomenon": "Units.THERMAL_INSULANCE",
            "unitSystem": "Units.SI",
            "definition": "M(2)*DELTA_KELVIN*W(-1)"
        },
        "SQ_M_CELSIUS_PER_WATT": {
            "schemaItemType": "Unit",
            "label": "m²·Δ°C/W",
            "phenomenon": "Units.THERMAL_INSULANCE",
            "unitSystem": "Units.METRIC",
            "definition": "M(2)*DELTA_CELSIUS*W(-1)"
        },
        "SQ_FT_HR_FAHRENHEIT_PER_BTU": {
            "schemaItemType": "Unit",
            "label": "ft²·h·Δ°F/Btu",
            "phenomenon": "Units.THERMAL_INSULANCE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(2)*HR*DELTA_FAHRENHEIT*BTU(-1)"
        },
        "M_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "m/s",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.SI",
            "definition": "M*S(-1)"
        },
        "M_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "m/min",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "M*MIN(-1)"
        },
        "M_PER_HR": {
            "schemaItemType": "Unit",
            "label": "m/h",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "M*HR(-1)"
        },
        "M_PER_DAy": {
            "schemaItemType": "Unit",
            "label": "m/day",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "M*DAY(-1)"
        },
        "MM_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "mm/sec",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "MM*S(-1)"
        },
        "MM_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "mm/min",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "MM*MIN(-1)"
        },
        "MM_PER_HR": {
            "schemaItemType": "Unit",
            "label": "mm/h",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "MM*HR(-1)"
        },
        "MM_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "mm/day",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "MM*DAY(-1)"
        },
        "CM_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "cm/s",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "CM*S(-1)"
        },
        "CM_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "cm/min",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "CM*MIN(-1)"
        },
        "CM_PER_HR": {
            "schemaItemType": "Unit",
            "label": "cm/h",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "CM*HR(-1)"
        },
        "CM_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "cm/day",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "CM*DAY(-1)"
        },
        "KM_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "km/sec",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "KM*S(-1)"
        },
        "KM_PER_HR": {
            "schemaItemType": "Unit",
            "label": "km/h",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "KM*HR(-1)"
        },
        "IN_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "in/s",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN*S(-1)"
        },
        "IN_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "in/min",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN*MIN(-1)"
        },
        "IN_PER_HR": {
            "schemaItemType": "Unit",
            "label": "in/h",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN*HR(-1)"
        },
        "IN_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "in/day",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN*DAY(-1)"
        },
        "FT_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "ft/s",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*S(-1)"
        },
        "FT_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "ft/min",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*MIN(-1)"
        },
        "FT_PER_HR": {
            "schemaItemType": "Unit",
            "label": "ft/h",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*HR(-1)"
        },
        "FT_PER_DAY": {
            "schemaItemType": "Unit",
            "label": "ft/day",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT*DAY(-1)"
        },
        "YRD_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "yrd/sec",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "YRD*S(-1)"
        },
        "MPH": {
            "schemaItemType": "Unit",
            "label": "mi/h",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "MILE*HR(-1)"
        },
        "KNOT_INTERNATIONAL": {
            "schemaItemType": "Unit",
            "label": "knot (Int.)",
            "phenomenon": "Units.VELOCITY",
            "unitSystem": "Units.MARITIME",
            "definition": "NAUT_MILE*HR(-1)"
        },
        "RAD_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "rad/sec",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.SI",
            "definition": "RAD*S(-1)"
        },
        "RAD_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "rad/min",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "RAD*MIN(-1)"
        },
        "RAD_PER_HR": {
            "schemaItemType": "Unit",
            "label": "rad/hr",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "RAD*HR(-1)"
        },
        "RPS": {
            "schemaItemType": "Unit",
            "label": "cycle/sec",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "[TWO_PI]*RAD*S(-1)"
        },
        "RPM": {
            "schemaItemType": "Unit",
            "label": "cycle/min",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "[TWO_PI]*RAD*MIN(-1)"
        },
        "RPH": {
            "schemaItemType": "Unit",
            "label": "cycle/hr",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "[TWO_PI]*RAD*HR(-1)"
        },
        "DEG_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "deg/sec",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "ARC_DEG*S(-1)"
        },
        "DEG_PER_MIN": {
            "schemaItemType": "Unit",
            "label": "deg/min",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "ARC_DEG*MIN(-1)"
        },
        "DEG_PER_HR": {
            "schemaItemType": "Unit",
            "label": "deg/hr",
            "phenomenon": "Units.ANGULAR_VELOCITY",
            "unitSystem": "Units.METRIC",
            "definition": "ARC_DEG*HR(-1)"
        },
        "PA_S": {
            "schemaItemType": "Unit",
            "label": "Pa·s",
            "phenomenon": "Units.DYNAMIC_VISCOSITY",
            "unitSystem": "Units.SI",
            "definition": "PA*S"
        },
        "POISE": {
            "schemaItemType": "Unit",
            "label": "poise",
            "description": "Exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.DYNAMIC_VISCOSITY",
            "unitSystem": "Units.METRIC",
            "definition": "[DECI]*PA_S"
        },
        "CENTIPOISE": {
            "schemaItemType": "Unit",
            "label": "cP",
            "phenomenon": "Units.DYNAMIC_VISCOSITY",
            "unitSystem": "Units.METRIC",
            "definition": "[CENTI]*POISE"
        },
        "LBM_PER_FT_S": {
            "schemaItemType": "Unit",
            "label": "lbm/(ft*s)",
            "phenomenon": "Units.DYNAMIC_VISCOSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "LBM*FT(-1)*S(-1)"
        },
        "SQ_M_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "m²/s",
            "phenomenon": "Units.KINEMATIC_VISCOSITY",
            "unitSystem": "Units.SI",
            "definition": "M(2)*S(-1)"
        },
        "SQ_FT_PER_SEC": {
            "schemaItemType": "Unit",
            "label": "ft²/s",
            "phenomenon": "Units.KINEMATIC_VISCOSITY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(2)*S(-1)"
        },
        "STOKE": {
            "schemaItemType": "Unit",
            "label": "St",
            "phenomenon": "Units.KINEMATIC_VISCOSITY",
            "unitSystem": "Units.METRIC",
            "definition": "CM(2)*S(-1)"
        },
        "CENTISTOKE": {
            "schemaItemType": "Unit",
            "label": "cSt",
            "phenomenon": "Units.KINEMATIC_VISCOSITY",
            "unitSystem": "Units.METRIC",
            "definition": "MM(2)*S(-1)"
        },
        "CUB_M": {
            "schemaItemType": "Unit",
            "label": "m³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.SI",
            "definition": "M(3)"
        },
        "CUB_UM": {
            "schemaItemType": "Unit",
            "label": "um³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "UM(3)"
        },
        "CUB_MM": {
            "schemaItemType": "Unit",
            "label": "mm³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "MM(3)"
        },
        "CUB_CM": {
            "schemaItemType": "Unit",
            "label": "cm³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "CM(3)"
        },
        "CUB_DM": {
            "schemaItemType": "Unit",
            "label": "dm³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "DM(3)"
        },
        "CUB_KM": {
            "schemaItemType": "Unit",
            "label": "km³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "KM(3)"
        },
        "LITRE": {
            "schemaItemType": "Unit",
            "label": "L",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "CUB_DM"
        },
        "THOUSAND_LITRE": {
            "schemaItemType": "Unit",
            "label": "thousand L",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*LITRE"
        },
        "MILLION_LITRE": {
            "schemaItemType": "Unit",
            "label": "million L",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*LITRE"
        },
        "MILLILITRE": {
            "schemaItemType": "Unit",
            "label": "mL",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "[MILLI]*LITRE"
        },
        "MICROLITRE": {
            "schemaItemType": "Unit",
            "label": "µliter",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.METRIC",
            "definition": "[MICRO]*LITRE"
        },
        "CUB_IN": {
            "schemaItemType": "Unit",
            "label": "in³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN(3)"
        },
        "CUB_FT": {
            "schemaItemType": "Unit",
            "label": "ft³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(3)"
        },
        "CUB_YRD": {
            "schemaItemType": "Unit",
            "label": "yd³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "YRD(3)"
        },
        "CUB_MILE": {
            "schemaItemType": "Unit",
            "label": "mile³",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "MILE(3)"
        },
        "ACRE_IN": {
            "schemaItemType": "Unit",
            "label": "acre·in",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE*IN"
        },
        "ACRE_FT": {
            "schemaItemType": "Unit",
            "label": "acre·ft",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "ACRE*FT"
        },
        "GALLON": {
            "schemaItemType": "Unit",
            "label": "gal",
            "description": "Exact, http://www.nist.gov/pml/wmd/pubs/upload/hb44-15-web-final.pdf, Appendix C. Section 4, Page C-11",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN(3)",
            "numerator": 231
        },
        "THOUSAND_GALLON": {
            "schemaItemType": "Unit",
            "label": "thousand gal",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[KILO]*GALLON"
        },
        "MILLION_GALLON": {
            "schemaItemType": "Unit",
            "label": "million gal",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "[MEGA]*GALLON"
        },
        "CUB_US_SURVEY_IN": {
            "schemaItemType": "Unit",
            "label": "in³ (US Survey)",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_IN(3)"
        },
        "CUB_US_SURVEY_FT": {
            "schemaItemType": "Unit",
            "label": "ft³ (US Survey)",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_FT(3)"
        },
        "CUB_US_SURVEY_YRD": {
            "schemaItemType": "Unit",
            "label": "yrd³ (US Survey)",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_YRD(3)"
        },
        "CUB_US_SURVEY_MILE": {
            "schemaItemType": "Unit",
            "label": "mile³ (US Survey)",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.USSURVEY",
            "definition": "US_SURVEY_MILE(3)"
        },
        "GALLON_IMPERIAL": {
            "schemaItemType": "Unit",
            "label": "gal (imp)",
            "description": "Exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.",
            "phenomenon": "Units.VOLUME",
            "unitSystem": "Units.IMPERIAL",
            "definition": "LITRE",
            "numerator": 4.54609
        },
        "CUB_M_PER_CUB_M": {
            "schemaItemType": "Unit",
            "label": "m³/m³",
            "phenomenon": "Units.VOLUME_RATIO",
            "unitSystem": "Units.SI",
            "definition": "M(3)*M(-3)"
        },
        "LITRE_PER_LITRE": {
            "schemaItemType": "Unit",
            "label": "liter/liter",
            "phenomenon": "Units.VOLUME_RATIO",
            "unitSystem": "Units.METRIC",
            "definition": "LITRE*LITRE(-1)"
        },
        "CUB_M_PER_KG": {
            "schemaItemType": "Unit",
            "label": "m³/kg",
            "phenomenon": "Units.SPECIFIC_VOLUME",
            "unitSystem": "Units.SI",
            "definition": "M(3)*KG(-1)"
        },
        "CUB_FT_PER_LBM": {
            "schemaItemType": "Unit",
            "label": "ft³/lm",
            "phenomenon": "Units.SPECIFIC_VOLUME",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(3)*LBM(-1)"
        },
        "CUB_M_PER_M": {
            "schemaItemType": "Unit",
            "label": "m³/m",
            "phenomenon": "Units.VOLUME_PER_LENGTH",
            "unitSystem": "Units.SI",
            "definition": "M(3)*M(-1)"
        },
        "CUB_FT_PER_FT": {
            "schemaItemType": "Unit",
            "label": "ft³/ft",
            "phenomenon": "Units.VOLUME_PER_LENGTH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(3)*FT(-1)"
        },
        "M_TO_THE_SIXTH": {
            "schemaItemType": "Unit",
            "label": "m⁶",
            "phenomenon": "Units.TORSIONAL_WARPING_CONSTANT",
            "unitSystem": "Units.SI",
            "definition": "M(6)"
        },
        "MM_TO_THE_SIXTH": {
            "schemaItemType": "Unit",
            "label": "mm⁶",
            "phenomenon": "Units.TORSIONAL_WARPING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "MM(6)"
        },
        "CM_TO_THE_SIXTH": {
            "schemaItemType": "Unit",
            "label": "cm⁶",
            "phenomenon": "Units.TORSIONAL_WARPING_CONSTANT",
            "unitSystem": "Units.METRIC",
            "definition": "CM(6)"
        },
        "IN_TO_THE_SIXTH": {
            "schemaItemType": "Unit",
            "label": "in⁶",
            "phenomenon": "Units.TORSIONAL_WARPING_CONSTANT",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN(6)"
        },
        "FT_TO_THE_SIXTH": {
            "schemaItemType": "Unit",
            "label": "ft⁶",
            "phenomenon": "Units.TORSIONAL_WARPING_CONSTANT",
            "unitSystem": "Units.USCUSTOM",
            "definition": "FT(6)"
        },
        "VA": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.APPARENT_POWER",
            "unitSystem": "Units.SI",
            "definition": "VOLT*A"
        },
        "KVA": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.APPARENT_POWER",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*VA"
        },
        "MVA": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.APPARENT_POWER",
            "unitSystem": "Units.METRIC",
            "definition": "[MEGA]*VA"
        },
        "M": {
            "schemaItemType": "Unit",
            "label": "m",
            "phenomenon": "Units.LENGTH",
            "unitSystem": "Units.SI",
            "definition": "M"
        },
        "KG": {
            "schemaItemType": "Unit",
            "label": "kg",
            "phenomenon": "Units.MASS",
            "unitSystem": "Units.SI",
            "definition": "KG"
        },
        "S": {
            "schemaItemType": "Unit",
            "label": "s",
            "phenomenon": "Units.TIME",
            "unitSystem": "Units.SI",
            "definition": "S"
        },
        "K": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.TEMPERATURE",
            "unitSystem": "Units.SI",
            "definition": "K"
        },
        "DELTA_KELVIN": {
            "schemaItemType": "Unit",
            "label": "ΔK",
            "phenomenon": "Units.TEMPERATURE_CHANGE",
            "unitSystem": "Units.SI",
            "definition": "DELTA_KELVIN"
        },
        "A": {
            "schemaItemType": "Unit",
            "phenomenon": "Units.CURRENT",
            "unitSystem": "Units.SI",
            "definition": "A"
        },
        "MOL": {
            "schemaItemType": "Unit",
            "label": "mol",
            "description": "Where mol is the SI gram mol or gmol.",
            "phenomenon": "Units.MOLE",
            "unitSystem": "Units.SI",
            "definition": "MOL"
        },
        "CD": {
            "schemaItemType": "Unit",
            "label": "cd",
            "phenomenon": "Units.LUMINOSITY",
            "unitSystem": "Units.SI",
            "definition": "CD"
        },
        "RAD": {
            "schemaItemType": "Unit",
            "label": "rad",
            "phenomenon": "Units.ANGLE",
            "unitSystem": "Units.SI",
            "definition": "RAD"
        },
        "HORIZONTAL_DIR_RAD": {
            "schemaItemType": "Unit",
            "label": "rad",
            "phenomenon": "Units.HORIZONTAL_DIRECTION",
            "unitSystem": "Units.SI",
            "definition": "HORIZONTAL_DIR_RAD"
        },
        "STERAD": {
            "schemaItemType": "Unit",
            "label": "sterad",
            "phenomenon": "Units.SOLIDANGLE",
            "unitSystem": "Units.SI",
            "definition": "STERAD"
        },
        "US_DOLLAR": {
            "schemaItemType": "Unit",
            "label": "$",
            "phenomenon": "Units.CURRENCY",
            "unitSystem": "Units.FINANCE",
            "definition": "US_DOLLAR"
        },
        "MONETARY_UNIT": {
            "schemaItemType": "Unit",
            "label": "¤",
            "description": "For money of an unspecified denomination",
            "phenomenon": "Units.CURRENCY",
            "unitSystem": "Units.FINANCE",
            "definition": "MONETARY_UNIT"
        },
        "PERSON": {
            "schemaItemType": "Unit",
            "label": "person",
            "phenomenon": "Units.CAPITA",
            "unitSystem": "Units.SI",
            "definition": "PERSON"
        },
        "ONE": {
            "schemaItemType": "Unit",
            "label": "one",
            "phenomenon": "Units.NUMBER",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "ONE"
        },
        "COEFFICIENT": {
            "schemaItemType": "Unit",
            "label": "coefficient",
            "description": "For unitless coefficients",
            "phenomenon": "Units.NUMBER",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "ONE"
        },
        "OHM": {
            "schemaItemType": "Unit",
            "label": "Ω",
            "phenomenon": "Units.ELECTRICAL_RESISTANCE",
            "unitSystem": "Units.SI",
            "definition": "VOLT*A(-1)"
        },
        "KOHM": {
            "schemaItemType": "Unit",
            "label": "kΩ",
            "phenomenon": "Units.ELECTRICAL_RESISTANCE",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*OHM"
        },
        "OHM_M": {
            "schemaItemType": "Unit",
            "label": "Ω·m",
            "phenomenon": "Units.ELECTRICAL_RESISTIVITY",
            "unitSystem": "Units.SI",
            "definition": "OHM*M"
        },
        "M_PER_REVOLUTION": {
            "schemaItemType": "Unit",
            "label": "m/r",
            "phenomenon": "Units.THREAD_PITCH",
            "unitSystem": "Units.INTERNATIONAL",
            "definition": "M*REVOLUTION(-1)"
        },
        "M_PER_RAD": {
            "schemaItemType": "Unit",
            "label": "m/rad",
            "phenomenon": "Units.THREAD_PITCH",
            "unitSystem": "Units.SI",
            "definition": "M*RAD(-1)"
        },
        "IN_PER_DEGREE": {
            "schemaItemType": "Unit",
            "label": "in/degree",
            "phenomenon": "Units.THREAD_PITCH",
            "unitSystem": "Units.USCUSTOM",
            "definition": "IN*ARC_DEG(-1)"
        },
        "J_PER_K": {
            "schemaItemType": "Unit",
            "label": "J/K",
            "phenomenon": "Units.ENTROPY",
            "unitSystem": "Units.SI",
            "definition": "J*DELTA_KELVIN(-1)"
        },
        "KJ_PER_K": {
            "schemaItemType": "Unit",
            "label": "KJ/K",
            "phenomenon": "Units.ENTROPY",
            "unitSystem": "Units.METRIC",
            "definition": "[KILO]*J*DELTA_KELVIN(-1)"
        },
        "BTU_PER_FAHRENHEIT": {
            "schemaItemType": "Unit",
            "label": "Btu/°F",
            "description": "Exact, See http://physics.nist.gov/cuu/pdf/sp811.pdf Appendix B.8, page 46.",
            "phenomenon": "Units.ENTROPY",
            "unitSystem": "Units.USCUSTOM",
            "definition": "BTU*DELTA_FAHRENHEIT(-1)"
        },
        "LUMEN_PER_W": {
            "schemaItemType": "Unit",
            "label": "lm/W",
            "phenomenon": "Units.LUMINOUS_EFFICACY",
            "unitSystem": "Units.SI",
            "definition": "LUMEN*W(-1)"
        },
        "INVERSE_N": {
            "schemaItemType": "Unit",
            "label": "1/N",
            "phenomenon": "Units.MOMENT_DISPLAY_SCALE",
            "unitSystem": "Units.SI",
            "definition": "N(-1)"
        },
        "INVERSE_KN": {
            "schemaItemType": "Unit",
            "label": "1/kN",
            "phenomenon": "Units.MOMENT_DISPLAY_SCALE",
            "unitSystem": "Units.METRIC",
            "definition": "KN(-1)"
        },
        "INVERSE_KPF": {
            "schemaItemType": "Unit",
            "label": "1/kpf",
            "phenomenon": "Units.MOMENT_DISPLAY_SCALE",
            "unitSystem": "Units.USCUSTOM",
            "definition": "KPF(-1)"
        },
        "M_PER_N": {
            "schemaItemType": "Unit",
            "label": "m/N",
            "phenomenon": "Units.FORCE_DISPLAY_SCALE",
            "unitSystem": "Units.SI",
            "definition": "N_PER_M(-1)"
        },
        "M_PER_KN": {
            "schemaItemType": "Unit",
            "label": "m/kN",
            "phenomenon": "Units.FORCE_DISPLAY_SCALE",
            "unitSystem": "Units.METRIC",
            "definition": "KN_PER_M(-1)"
        }
    }
}