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Units (UNIT List
| Type | Unit | Description | Date | Comments | Status | Version |
|---|---|---|---|---|---|---|
| Length | mm | millimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Length | cm | centimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Length | m | metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Length | km | kilometre | 01-11-1999 | Approved | 4.0,4.1 | |
| Length | in | inch | 01-11-1999 | Approved | 4.0,4.1 | |
| Length | ft | foot | 01-11-1999 | Approved | 4.0,4.1 | |
| Length | yd | yard | 01-11-1999 | Approved | 4.0,4.1 | |
| Length | mi | mile | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | cm2 | square centimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | m2 | square metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | km2 | square kilometre | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | mm3 | cubic millimetre | 08-12-2020 | Approved | 4.0,4.1 | |
| Area | hect | hectare | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | in2 | square inch | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | ft2 | square foot | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | yd2 | square yard | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | mi2 | square mile | 01-11-1999 | Approved | 4.0,4.1 | |
| Area | acre | acre | 01-11-1999 | Approved | 4.0,4.1 | |
| Volume | cm3 | cubic centimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Volume | m3 | cubic metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Volume | l | litre | 01-11-1999 | Approved | 4.0,4.1 | |
| Volume | in3 | cubic inch | 01-11-1999 | Approved | 4.0,4.1 | |
| Volume | ft3 | cubic foot | 01-11-1999 | Approved | 4.0,4.1 | |
| Volume | yd3 | cubic yard | 01-11-1999 | Approved | 4.0,4.1 | |
| Volume | gal | gallon | 01-11-1999 | Approved | 4.0,4.1 | |
| Force | N | Newton | 01-11-1999 | Approved | 4.0,4.1 | |
| Force | kN | kiloNewton | 01-11-1999 | Approved | 4.0,4.1 | |
| Force | MN | megaNewton | 01-11-1999 | Approved | 4.0,4.1 | |
| Force | lbf | pounds force | 01-11-1999 | Approved | 4.0,4.1 | |
| Force | tonf | tons force | 01-11-1999 | Approved | 4.0,4.1 | |
| Force | kgf | kilograms force | 01-11-1999 | Approved | 4.0,4.1 | |
| Mass | g | gram | 01-11-1999 | Approved | 4.0,4.1 | |
| Mass | kg | kilogram | 01-11-1999 | Approved | 4.0,4.1 | |
| Mass | Mg | megagram (tonne) | 01-11-1999 | Approved | 4.0,4.1 | |
| Mass | lb | pound | 01-11-1999 | Approved | 4.0,4.1 | |
| Mass | t | ton | 01-11-1999 | Approved | 4.0,4.1 | |
| Mass | kips | kilopound | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | kN/m2 | kiloNewtons per square metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | kPa | kiloPascal | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | MN/m2 | megaNewtons per square metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | MPa | megaPascal | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | GPa | gigaPascal | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | psi | pounds per square inch | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | psf | pounds per square foot | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | ksi | kips per square inch | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | ksf | kips per square foot | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | tsf | tons per square foot | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | kg/cm2 | kilograms per square centimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Pressure | bar | bar | 01-11-1999 | Approved | 4.0,4.1 | |
| Density | kN/m3 | kiloNewtons per cubic metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Density | Mg/m3 | megagrams per cubic metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Density | pcf | pounds per cubic foot | 01-11-1999 | Approved | 4.0,4.1 | |
| Density | g/cm3 | grams per cubic centimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Density | kg/m3 | kilograms per cubic metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Time | s | second | 01-11-1999 | Approved | 4.0,4.1 | |
| Time | min | minute | 01-11-1999 | Approved | 4.0,4.1 | |
| Time | hr | hour | 01-11-1999 | Approved | 4.0,4.1 | |
| Time | day | day | 01-11-1999 | Approved | 4.0,4.1 | |
| Time | month | month | 01-11-1999 | Approved | 4.0,4.1 | |
| Time | yr | year | 01-11-1999 | Approved | 4.0,4.1 | |
| Time | hhmm | hours minutes | 01-11-1999 | Approved | 3.1 | |
| Time | hhmmss | hours minutes seconds | 01-11-1999 | Approved | 3.1 | |
| Time | dd/mm/yyyy | day month year | 01-11-1999 | Approved | 3.1 | |
| Velocity | mm/s | millimetres per second | 01-11-1999 | Approved | 4.0,4.1 | |
| Velocity | cm/s | centimetres per second | 01-11-1999 | Approved | 4.0,4.1 | |
| Velocity | m/s | metres per second | 01-11-1999 | Approved | 4.0,4.1 | |
| Velocity | km/hr | kilometres per hour | 01-11-1999 | Approved | 4.0,4.1 | |
| Velocity | m/min | metres per minute | 08-12-2020 | Approved | 4.0,4.1 | |
| Velocity | ft/min | feet per minute | 01-11-1999 | Approved | 4.0,4.1 | |
| Velocity | mph | miles per hour | 01-11-1999 | Approved | 4.0,4.1 | |
| Flow | l/s | litres per second | 01-11-1999 | Approved | 4.0,4.1 | |
| Flow | l/hr | litres per hour | 01-11-1999 | Approved | 4.0,4.1 | |
| Flow | m3/s | cubic metres per second | 01-11-1999 | Approved | 4.0,4.1 | |
| Flow | gpm | gallons per minute | 01-11-1999 | Approved | 4.0,4.1 | |
| Flow | mgd | million gallons per day | 01-11-1999 | Approved | 4.0,4.1 | |
| Flow | cfs | cubic feet per second | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | ug/l | micrograms per litre | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | mg/l | milligrams per litre | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | g/l | grams per litre | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | ug/kg | micrograms per kilogram | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | mg/kg | milligrams per kilogram | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | ppb | parts per billion | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | ppm | parts per million | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | % | percentage | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | % dry weight | percentage of dry weight | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | %vol | percentage volume | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | colonies/ml | colonies per millilitre | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | colonies/l | colonies per litre | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | CFU/ml | colony forming units per millilitre | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | CFU/g | colony forming units per gram | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | MPN/ml | most probable number per millilitre | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | MPN/100ml | most probable number per 100 millilitres | 01-11-1999 | Approved | 4.0,4.1 | |
| Concentration | MPN/l | most probable number per litre | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | m2/MN | square metres per megaNewton | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | ft2/t | square feet per ton | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | m2/yr | square metres per year | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | ft2/yr | square feet per year | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | ft2/day | square feet per day | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | Nm | Newton metre | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | deg | degree (angle) | 01-11-1999 | Approved | 4.0,4.1 | |
| Temperature | DegC | degree Celsius | 01-11-1999 | Approved | 4.0,4.1 | |
| Temperature | DegF | degree Fahrenheit | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | uV | microVolt | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | mV | milliVolt | 01-11-1999 | Approved | 4.0,4.1 | |
| Electrical Resistivity | ohm | Ohm | 01-11-1999 | Approved | 4.0,4.1 | |
| Electrical Resistivity | ohmcm | Ohm centimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | uS/cm | microSiemens per centimetre | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | kJ/kg | kiloJoules per kilogram | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | API | American Petroleum Institute | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | counts/s | counts per second | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | Yes | Yes | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | No | No | 01-11-1999 | Approved | 4.0,4.1 | |
| Miscellaneous | kg/m | kilograms per metre | 01-12-2004 | Approved | 4.0,4.1 | |
| Concentration | ppmv | Parts per million volume | 01-04-2005 | Approved | 4.0,4.1 | |
| Time | yyyy-mm-dd | year month day | 31-05-2010 | Approved | 4.0,4.1 | |
| Miscellaneous | Bq/g | Becquerel per gram | 12-06-2017 | Approved | 4.0,4.1 | |
| Miscellaneous | uT | micro Tesla | 08-12-2020 | Approved | 4.0,4.1 | |
| Miscellaneous | nT | nano Tesla | 08-12-2020 | Approved | 4.0,4.1 | |
| Miscellaneous | UNITLESS | No unit | 08-12-2020 | Approved | 4.1 | |
| Time | us | microsecond | 08-12-2020 | Approved | 4.0,4.1 | |
| Time | ms | millisecond | 08-12-2020 | Approved | 4.0,4.1 | |
| Time | yyyy-mm-ddThh:mm | year month day hours minutes | 08-12-2020 | Approved | 4.0,4.1 | |
| Time | hh:mm | hours minutes | 08-12-2020 | Approved | 4.0,4.1 | |
| Time | hh:mm:ss | hours minutes seconds | 30-04-2024 | Approved | 4.0,4.1 | |
| Time | mm:ss | minutes seconds | 30-04-2024 | Approved | 4.0,4.1 | |
| Time | yyyy-mm-ddThh:mm:ss | year month day hours minutes seconds | 08-12-2020 | Approved | 4.0,4.1 | |
| Velocity | m/day | metres per day | 08-12-2020 | Approved | 4.0,4.1 | |
| Miscellaneous | mS/cm | milliSiemens per centimetre | 08-12-2020 | Approved | 4.0,4.1 | |
| Miscellaneous | mol/kg | moles per kilogram | 08-12-2020 | Approved | 4.0,4.1 | |
| Miscellaneous | MPa/s | mega Pascals per second | 08-12-2020 | Approved | 4.0,4.1 | |
| Miscellaneous | MPa/m | mega Pascals per metre | 08-12-2020 | This was erroneously described as mega Pascals per minute | Approved | 4.0,4.1 |
| Miscellaneous | S/m | Siemens per metre | 08-12-2020 | Approved | 4.0,4.1 | |
| Volume | ml | millilitre | 08-12-2020 | Approved | 4.0,4.1 | |
| Velocity | mm/min | millimetres per minute | 08-12-2020 | Approved | 4.0,4.1 | |
| Concentration | ng/l | nanograms per litre | 08-12-2020 | Approved | 4.0,4.1 | |
| Pressure | mbar | millibars | 08-12-2020 | Approved | 4.0,4.1 | |
| Electrical Resistivity | ohm m | Ohm metres | 08-12-2020 | Approved | 4.0,4.1 | |
| Permeability | mD | milli Darcy | 08-12-2020 | Approved | 4.1 | |
| Miscellaneous | rps | rotations per second | 08-12-2020 | Approved | 4.1 | |
| Permeability | g/cm3 | grams per cubic centimetre | 08-12-2020 | Deprecated | 4.1 | |
| Thermal Resistence | W/(K-m) | Watts per Kelvin metre | 08-12-2020 | Approved | 4.1 | |
| Thermal Resistence | (K-m)/W | Kelvin metres per Watt | 08-12-2020 | Approved | 4.1 | |
| Thermal Resistence | W/(K-cm) | Watts per Kelvin centimetre | 08-12-2020 | Approved | 4.1 | |
| Thermal Resistence | (K-cm)/W | Kelvin centimetres per Watt | 08-12-2020 | Approved | 4.1 | |
| Thermal Resistence | W/DegC | Watts per degree Celsius | 08-12-2020 | Approved | 4.1 | |
| Thermal Resistence | DegC/W | Degree Celsius per Watt | 08-12-2020 | Approved | 4.1 | |
| Thermal Resistence | W/K | Watts per Kelvin | 08-12-2020 | Approved | 4.1 | |
| Thermal Resistence | K/W | Kelvin per Watt | 08-12-2020 | Approved | 4.1 | |
| Flow | %/hr | percentage per hour | 08-12-2020 | Approved | 4.0,4.1 | |
| Miscellaneous | pH | pH Units | 17-01-2022 | Whilst this unit has been in conventional use in AGS 4.0, the committee would prefer the new AGS 4.1 unit definition of 'UNITLESS' be used instead. | Declined | 4.0 |
| Flow | l/min | litres per minute | 30-04-2024 | Approved | 4.0,4.1 | |
| Velocity | m/hr | metres per hour | 30-04-2024 | Approved | 4.0,4.1 | |
| Velocity | rpm | revolution per minute | 30-04-2024 | Approved | 4.0,4.1 | |
| Flow | %/min | percentage per minute | 30-04-2024 | Approved | 4.0,4.1 | |
| Force | N/s | Newton-second | 08-12-2020 | Approved | 4.0,4.1 | |
| Frequency | Hz | hertz | 30-04-2024 | Approved | 4.0,4.1 | |
| Miscellaneous | MJ | MegaJoule | 30-04-2024 | Approved | 4.0,4.1 | |
| Miscellaneous | MJ/m3 | MegaJoule per cubic meter | 30-04-2024 | Approved | 4.0,4.1 | |
| Length | mm2 | square millimetre | 25-11-2024 | Approved | 4.0,4.1 | |
| Type | Comments | Status | Version |