Units of measure
type: ConceptScheme
notation: Uom
is part of: wise
registration status: Released
user modified: staromar
date modified: 2022-10-11 11:39:26.0
vocabulary type: Common
version: 1
is numeric concept identifiers: false
is notations equal identifiers: false

cubic hectometre
type: Concept
notation: hm3
definition: Volume unit. Conversion factor: 1m3 = 10^-6 hm3. Equivalent to a million cubic metre.
status: valid
status modified: 2016-11-28
accepted date: 2016-11-28
in scheme: Units of measure
broader: cubic metre

cubic decametre
type: Concept
notation: dam3
definition: Volume unit. Conversion factor: 1m3 = 10^-3 dam3. Equivalent to a thousand cubic metre.
status: valid
status modified: 2016-11-28
accepted date: 2016-11-28
in scheme: Units of measure
broader: cubic metre

thousand tonnes per year
type: Concept
notation: 1000.t/a
definition: Mass flow rate. Conversion factor: 1 kg/s = 31536 t/a. Used for loads or emissions of nutrients of oxygen consuming substances.
status: valid
status modified: 2016-11-28
accepted date: 2016-11-28
in scheme: Units of measure
broader: kilogram per second

becquerel
type: Concept
notation: Bq
definition: Radioactivity unit. SI unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure

degree Celsius
type: Concept
notation: Cel
definition: Temperature unit. Expressed in degree Celsius.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: degree Kelvin

degree Kelvin
type: Concept
notation: K
definition: Temperature unit. SI base unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: degree Celsius

Million Euro
type: Concept
notation: M{EUR}
definition: Currency unit.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: Euro

siemens per metre
type: Concept
notation: S/m
definition: Electrical conductivity unit. SI unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: microsiemens per metre
narrower: millisiemens per centimetre
narrower: microsiemens per centimetre

Colony Forming Unit
type: Concept
notation: [CFU]
definition: Colony Forming Unit.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure

Colony Forming Unit per litre
type: Concept
notation: [CFU]/L
definition: Colony Forming Unit per liter.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
narrower: Colony Forming Unit per deciliter

Colony Forming Unit per deciliter
type: Concept
notation: [CFU]/dL
definition: Colony Forming Unit per deciliter.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: Colony Forming Unit per litre

pH
type: Concept
notation: [pH]
definition: pH unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure

parts per million
type: Concept
notation: [ppm]
definition: Parts per million. Dimensionless quantity.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: ratio

parts per thousand
type: Concept
notation: [ppth]
definition: Parts per thousand. Dimensionless quantity.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: ratio

year
type: Concept
notation: a
definition: Time unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: second

day
type: Concept
notation: d
definition: Time unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: second

equivalent
type: Concept
notation: eq
definition: Amount of substance unit. Expressed in equivalent, which equals the amount of substance in moles time the valence of the ion.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure

equivalent per litre
type: Concept
notation: eq/L
definition: Amount of substance concentration unit. Expressed in equivalent per litre, which equals the amount of substance in moles time the valence of the ion divided by the volume in litre.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
narrower: microequivalent per litre
narrower: miliequivalent per litre

kilogram
type: Concept
notation: kg
definition: Mass unit. SI base unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure

kilogram per year
type: Concept
notation: kg/a
definition: Mass flow rate. Conversion factor: 1 kg/s = 31536000 kg/a. Used for loads or emissions of hazardous substances.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: kilogram per second

kilogram per cubic metre
type: Concept
notation: kg/m3
definition: Mass concentration unit. SI unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: milligram per cubic metre
narrower: microgram per litre
narrower: nanogram per litre
narrower: milligram per litre

kilogram per second
type: Concept
notation: kg/s
definition: Mass flow rate. SI unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: tonne per year
narrower: kilogram per year
narrower: thousand tonnes per year

kilometre
type: Concept
notation: km
definition: Length unit. Conversion factor: 1m=10^-3km
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: metre

square kilometre
type: Concept
notation: km2
definition: Area unit. Conversion factor: 1m2=10^-6km2
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: square metre

metre
type: Concept
notation: m
definition: Length unit. SI base unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: kilometre

square metre
type: Concept
notation: m2
definition: Area unit. SI unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: square kilometre

cubic metre
type: Concept
notation: m3
definition: Volume unit. SI unit
status: valid
status modified: 2016-11-28
accepted date: 2016-11-28
in scheme: Units of measure
narrower: cubic decametre
narrower: cubic hectometre

millisiemens per centimetre
type: Concept
notation: mS/cm
definition: Electrical conductivity unit. Conversion factor: 1 S/m = 10 mS/cm
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: siemens per metre

miliequivalent per litre
type: Concept
notation: meq/L
definition: Amount of substance concentration unit. Conversion factor: 1eq/L=10^3meq/L
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: equivalent per litre

milligram per litre
type: Concept
notation: mg/L
definition: Mass concentration unit. Conversion factor: 1 kg/m3 = 10^3 mg/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: kilogram per cubic metre
narrower: milligram of Magnesium per litre
narrower: milligram of Chlorine per litre
narrower: milligram of Phosphorus per litre
narrower: milligram of Sulphate per litre
narrower: milligram of Oxygen per litre
narrower: milligram of Ammonia per litre
narrower: milligram of Silicon per litre
narrower: milligram of Carbon per litre
narrower: milligram of Sulphur per litre
narrower: milligram of Nitrogen per litre
narrower: milligram of Calcium Carbonate per litre
narrower: milligram of Calcium per litre

milligram per gram
type: Concept
notation: mg/g
definition: Mass ratio unit. Conversion factor: 1 kg/kg = 10^3 mg/g
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mass ratio

milligram per kilogram
type: Concept
notation: mg/kg
definition: Mass ratio unit. Conversion factor: 1 kg/kg = 10^6 mg/kg
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mass ratio

milligram per cubic metre
type: Concept
notation: mg/m3
definition: Mass concentration unit. Conversion factor: 1 kg/m3 = 10^-6 mg/m3
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: kilogram per cubic metre
narrower: milligram of Phosphorus per cubic meter

milligram of Calcium Carbonate per litre
type: Concept
notation: mg{CaCO3}/L
definition: Mass concentration unit. Expressed in mass of Calcium Carbonate per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre

milligram of Calcium per litre
type: Concept
notation: mg{Ca}/L
definition: Mass concentration unit. Expressed in mass of Calcium per volume.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: milligram per litre

milligram of Chlorine per litre
type: Concept
notation: mg{Cl}/L
definition: Mass concentration unit. Expressed in mass of Chlorine per volume.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: milligram per litre

milligram of Carbon per litre
type: Concept
notation: mg{C}/L
definition: Mass concentration unit. Expressed in mass of Carbon per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre

milligram of Magnesium per litre
type: Concept
notation: mg{Mg}/L
definition: Mass concentration unit. Expressed in mass of Magnesium per volume.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: milligram per litre

milligram of Ammonia per litre
type: Concept
notation: mg{NH3}/L
definition: Mass concentration unit. Expressed in mass of Ammonia per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre

milligram of Ammonium per litre
type: Concept
notation: mg{NH4}/L
definition: Mass concentration unit. Expressed in mass of Ammonium per volume. Conversion factor: 1 mg{N}/L = 1.2888 mg{NH4}/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram of Nitrogen per litre

milligram of Nitrite per litre
type: Concept
notation: mg{NO2}/L
definition: Mass concentration unit. Expressed in mass of Nitrite per volume. Conversion factor: 1 mg{N}/L = 3.2845 mg{NO2}/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram of Nitrogen per litre

milligram of Nitrate per litre
type: Concept
notation: mg{NO3}/L
definition: Mass concentration unit. Expressed in mass of Nitrate per volume. Conversion factor: 1 mg{N}/L = 4.4268 mg{NO3}/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram of Nitrogen per litre

milligram of Nitrogen per litre
type: Concept
notation: mg{N}/L
definition: Mass concentration unit. Expressed in mass of Nitrogen per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre
narrower: milligram of Nitrite per litre
narrower: milligram of Ammonium per litre
narrower: milligram of Nitrate per litre

milligram of Oxygen per litre
type: Concept
notation: mg{O2}/L
definition: Mass concentration unit. Expressed in mass of Oxygen per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre

milligram of Phosphate per litre
type: Concept
notation: mg{PO4}/L
definition: Mass concentration unit. Expressed in mass of Phosphate per volume. Conversion factor: 1 mg{P}/L = 3.0662 mg{PO4}/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram of Phosphorus per litre

milligram of Phosphate per cubic meter
type: Concept
notation: mg{PO4}/m3
definition: Mass concentration unit. Expressed in mass of Phosphate per volume. Conversion factor: 1 mg{P}/m3 = 3.0662 mg{PO4}/m3
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: milligram of Phosphorus per cubic meter

milligram of Phosphorus per litre
type: Concept
notation: mg{P}/L
definition: Mass concentration unit. Expressed in mass of Phosphorus per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre
narrower: milligram of Phosphate per litre

milligram of Phosphorus per cubic meter
type: Concept
notation: mg{P}/m3
definition: Mass concentration unit. Expressed in mass of Phosphorus per volume.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: milligram per cubic metre
narrower: milligram of Phosphate per cubic meter

milligram of Sulphate per litre
type: Concept
notation: mg{SO4}/L
definition: Mass concentration unit. Expressed in mass of Sulphate per volume.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: milligram per litre

milligram of Silicate per litre
type: Concept
notation: mg{SiO3}/L
definition: Mass concentration unit. Expressed in mass of Silicate per volume. Conversion factor: 1 mg{Si}/L = 2.7090 mg{SiO3}/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram of Silicon per litre

milligram of Silicon per litre
type: Concept
notation: mg{Si}/L
definition: Mass concentration unit. Expressed in mass of Silicon per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre
narrower: milligram of Silicate per litre

milligram of Sulphur per litre
type: Concept
notation: mg{S}/L
definition: Mass concentration unit. Expressed in mass of Sulfur per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: milligram per litre

millimole per litre
type: Concept
notation: mmol/L
definition: Amount of substance concentration unit. Conversion factor: 1 mol/m3 = 1 mmol/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mole per cubic metre

month
type: Concept
notation: mo
definition: Time unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: second

mole
type: Concept
notation: mol
definition: Amount of substance unit. SI base unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure

mole per litre
type: Concept
notation: mol/L
definition: Amount of substance concentration unit. Conversion factor: 1 mol/m3 = 10^-3 mol/L
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: mole per cubic metre

mole per cubic metre
type: Concept
notation: mol/m3
definition: Amount of substance concentration unit. SI unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: mole per litre
narrower: millimole per litre
narrower: micromole per litre

nanogram per litre
type: Concept
notation: ng/L
definition: Mass concentration unit. Conversion factor: 1 kg/m3 = 10^9 ug/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: kilogram per cubic metre

nanogram per gram
type: Concept
notation: ng/g
definition: Mass ratio unit. Conversion factor: 1 kg/kg = 10^9 ng/g
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mass ratio

nanogram per kilogram
type: Concept
notation: ng/kg
definition: Mass ratio unit. Conversion factor: 1 kg/kg = 10^12 ng/kg
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mass ratio

percent
type: Concept
notation: %
definition: Percent. Dimensionless quantity.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: ratio
narrower: percent Oxygen saturation

percent Oxygen saturation
type: Concept
notation: %{oxygenSaturation}
definition: Dissolved Oxygen percent saturation.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: percent
broader: ratio

second
type: Concept
notation: s
definition: Time unit. SI base unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: year
narrower: day
narrower: month

tonne per year
type: Concept
notation: t/a
definition: Mass flow rate. Conversion factor: 1 kg/s = 31560 t/a. Used for loads or emissions of nutrients of oxygen consuming substances.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: kilogram per second

microsiemens per centimetre
type: Concept
notation: uS/cm
definition: Electrical conductivity unit. Conversion factor: 1 S/m = 10^4 uS/cm
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: siemens per metre

microsiemens per metre
type: Concept
notation: uS/m
definition: Electrical conductivity unit. Conversion factor: 1 S/m = 10^6 uS/m
status: valid
status modified: 2018-10-22
accepted date: 2018-10-22
in scheme: Units of measure
broader: siemens per metre

microequivalent per litre
type: Concept
notation: ueq/L
definition: Amount of substance concentration unit. Conversion factor: 1eq/L=10^6ueq/L
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: equivalent per litre

microgram per litre
type: Concept
notation: ug/L
definition: Mass concentration unit. Conversion factor: 1 kg/m3 = 10^6 ug/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: kilogram per cubic metre
narrower: microgram of Nitrogen per litre
narrower: microgram of Phosphorus per litre

microgram per gram
type: Concept
notation: ug/g
definition: Mass ratio unit. Conversion factor: 1 kg/kg = 10^6 ug/g
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mass ratio

microgram per kilogram
type: Concept
notation: ug/kg
definition: Mass ratio unit. Conversion factor: 1 kg/kg = 10^9 ug/kg
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mass ratio

microgram of Nitrogen per litre
type: Concept
notation: ug{N}/L
definition: Mass concentration unit. Expressed in mass of Nitrogen per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: microgram per litre

microgram of Phosphorus per litre
type: Concept
notation: ug{P}/L
definition: Mass concentration unit. Expressed in mass of Phosphorus per volume.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: microgram per litre

microgram TEQ per kilogram
type: Concept
notation: ug{TEQ}/kg
definition: Toxic equivalent (TEQ). Weighted mass ratio unit.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mass ratio

micromole per litre
type: Concept
notation: umol/L
definition: Amount of substance concentration unit. Conversion factor: 1 mol/m3 = 10^3 umol/L
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: mole per cubic metre
narrower: micromole of Silicon per litre
narrower: micromole of Phosphorus per litre
narrower: micromole of Sulfur per litre
narrower: micromole of Carbon per litre
narrower: micromole of Nitrogen per litre
narrower: micromole of Oxygen molecules per litre

micromole of Carbon per litre
type: Concept
notation: umol{C}/L
definition: Amount of substance concentration unit. Expressed in amount of Carbon per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: micromole per litre

micromole of Nitrogen per litre
type: Concept
notation: umol{N}/L
definition: Amount of substance concentration unit. Expressed in amount of Nitrogen per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: micromole per litre

micromole of Oxygen molecules per litre
type: Concept
notation: umol{O2}/L
definition: Amount of substance concentration unit. Expressed in amount of Oxygen molecules per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: micromole per litre

micromole of Phosphorus per litre
type: Concept
notation: umol{P}/L
definition: Amount of substance concentration unit. Expressed in amount of Phosphorus per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: micromole per litre

micromole of Silicon per litre
type: Concept
notation: umol{Si}/L
definition: Amount of substance concentration unit. Expressed in amount of Silicon per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: micromole per litre

micromole of Sulfur per litre
type: Concept
notation: umol{S}/L
definition: Amount of substance concentration unit. Expressed in amount of Sulfur molecules per volume.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: micromole per litre

Ecological Quality Ratio
type: Concept
notation: {EQR}
definition: Ecological quality ratio.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: ratio

Euro
type: Concept
notation: {EUR}
definition: Currency unit.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
narrower: Million Euro

Euro per year
type: Concept
notation: {EUR}/a
definition: Cost unit.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure

Formazin Nephelometric Unit
type: Concept
notation: {FNU}
definition: Formazin Nephelometric Unit. See ISO 7027-1:2016.
status: valid
status modified: 2022-02-25
accepted date: 2022-02-25
in scheme: Units of measure
broader: ratio

Nephelometric Turbidity Unit
type: Concept
notation: {NTU}
definition: Nephelometric turbidity unit. See http://coastwatch.pfeg.noaa.gov/erddap/convert/units.html
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: ratio

Practical Salinity Unit
type: Concept
notation: {PSU}
definition: Salinity unit. See http://unitsofmeasure.org/trac/ticket/27
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: ratio

mass ratio
type: Concept
notation: {massRatio}
definition: Mass ratio unit. Dimensionless: kg/kg
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: ratio
narrower: microgram per gram
narrower: nanogram per gram
narrower: microgram TEQ per kilogram
narrower: milligram per kilogram
narrower: nanogram per kilogram
narrower: milligram per gram
narrower: microgram per kilogram

molar ratio
type: Concept
notation: {molarRatio}
definition: Amount of substance ratio. Dimentionless: mol/mol
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
broader: ratio

presence or absence
type: Concept
notation: {presence}
definition: Presence or absence of a given property.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure

ratio
type: Concept
notation: {ratio}
definition: Ratio. Dimensionless quantity.
status: valid
status modified: 2016-09-08
accepted date: 2016-09-08
in scheme: Units of measure
narrower: parts per thousand
narrower: molar ratio
narrower: Nephelometric Turbidity Unit
narrower: percent
narrower: Practical Salinity Unit
narrower: Ecological Quality Ratio
narrower: parts per million
narrower: Formazin Nephelometric Unit
narrower: percent Oxygen saturation
narrower: mass ratio

kilogram TEQ per year
type: Concept
notation: kg{TEQ}/a
definition: Kilogram of Toxic equivalent (TEQ) per year.
status: valid
status modified: 2022-10-11
accepted date: 2022-10-11
in scheme: Units of measure