Ontology of units of Measure (OM)
type: Ontology
version info: 1.8.2
comment: This is a module of OM, with mostly just elements that are relevant to stuff. Made by Maria Keet
date: 2016/03/22
comment: The Ontology of units of Measure and related concepts (OM) models concepts and relations important to scientific research. It has a strong focus on units and quantities, measurements, and dimensions.
creator: Hajo Rijgersberg, Mark van Assem, Don Willems, Mari Wigham, Jeen Broekstra, Jan Top

LaTeX command
type: AnnotationProperty
comment: OMLaTeX command that can be used to render this quantity or unit.
alternative label: typeset by LaTeX command

LaTeX symbol
type: AnnotationProperty
comment: OMLaTeX formatted symbol may include commands such as \unit and \E as defined in OMLaTeX.
alternative label: LaTeX formatted symbol
alternative label: has LaTeX symbol

abbreviation
type: AnnotationProperty
alternative label: has abbreviation

alternative LaTeX symbol
type: AnnotationProperty
comment: An alternative OMLaTeX formatted symbol, which may include commands such as \unit and \E as defined in OMLaTeX.
alternative label: alternative LaTeX formatted symbol
alternative label: has alternative LaTeX symbol

alternative label
type: AnnotationProperty

alternative symbol
type: AnnotationProperty
alternative label: has alternative symbol

definition description
type: AnnotationProperty
alternative label: has definition description
range: string
domain: measurement scale

external link
type: AnnotationProperty
alternative label: has external link

longcomment
type: AnnotationProperty
alternative label: has longcomment
alternative label: long comment

symbol
type: AnnotationProperty
alternative label: has symbol

unofficial abbreviation
type: AnnotationProperty
comment: Used to specify abbreviations that are used in e.g. every day speech but are not defined in any standard.
alternative label: has unofficial abbreviation
sub property of: hiddenLabel

unofficial label
type: AnnotationProperty
comment: Used to specify labels that are used in e.g. every day speech but are not defined in any standard.
alternative label: has unofficial label
sub property of: hiddenLabel

reference
type: ObjectProperty
type: FunctionalProperty

base
type: ObjectProperty
type: FunctionalProperty
domain: unit exponentiation
range: unit of measure
alternative label: has base

base quantity
type: ObjectProperty
domain: system of units
range: quantity
alternative label: has base quantity

base unit
type: ObjectProperty
domain: system of units
range: unit of measure
alternative label: has base unit

definition
type: ObjectProperty
alternative label: has definition

definition relative to
type: ObjectProperty
domain: measurement scale
range: measurement scale
alternative label: has definition relative to

denominator
type: ObjectProperty
domain: unit division
range: unit of measure
alternative label: has denominator

derived quantity
type: ObjectProperty
domain: system of units
range: quantity
alternative label: has derived quantity

derived unit
type: ObjectProperty
domain: system of units
range: unit of measure
alternative label: has derived unit

dimension
type: ObjectProperty
domain: Class
  union of: measurement scale
  union of: quantity
  union of: unit of measure
range: dimension
alternative label: has dimension

element
type: ObjectProperty
domain: measurement scale
range: Thing
alternative label: has element

measurement scale
type: ObjectProperty
range: measurement scale
alternative label: has measurement scale

numerator
type: ObjectProperty
domain: unit division
range: unit of measure
alternative label: has numerator

phenomenon
type: ObjectProperty
type: FunctionalProperty
domain: quantity
alternative label: has phenomenon

prefix
type: ObjectProperty
type: FunctionalProperty
domain: unit multiple or submultiple
range: prefix
alternative label: has prefix

quantity
type: ObjectProperty
range: quantity
alternative label: has quantity

singular unit
type: ObjectProperty
type: FunctionalProperty
domain: unit multiple or submultiple
range: singular unit
alternative label: has singular unit

term 1
type: ObjectProperty
type: FunctionalProperty
domain: unit multiplication
range: unit of measure
alternative label: has term 1

term 2
type: ObjectProperty
type: FunctionalProperty
domain: unit multiplication
range: unit of measure
alternative label: has term 2

unit of measure
type: ObjectProperty
range: unit of measure
comment: For quantity classes this property indicates a commonly-used unit.
alternative label: has unit of measure

unit of measure or measurement scale
type: ObjectProperty
type: FunctionalProperty
domain: measure
range: Class
  union of: measurement scale
  union of: unit of measure
alternative label: has unit of measure or measurement scale

uses application area
type: ObjectProperty

value
type: ObjectProperty
domain: quantity
range: measure

vectorial or tensorial character
type: ObjectProperty
type: FunctionalProperty
domain: quantity
range: vectorial or tensorial character
alternative label: has vectorial or tensorial character

zero element
type: ObjectProperty
domain: ratio scale
range: fixed zero point
alternative label: has zero element

SI amount of substance dimension exponent
type: DatatypeProperty
domain: dimension
range: integer
alternative label: has SI amount of substance dimension exponent

SI electric current dimension exponent
type: DatatypeProperty
domain: dimension
range: integer
alternative label: has SI electric current dimension exponent

SI length dimension exponent
type: DatatypeProperty
domain: dimension
range: integer
alternative label: has SI length dimension exponent

SI luminous intensity dimension exponent
type: DatatypeProperty
domain: dimension
range: integer
alternative label: has SI luminous intensity dimension exponent

SI mass dimension exponent
type: DatatypeProperty
domain: dimension
range: integer
alternative label: has SI mass dimension exponent

SI thermodynamic temperature dimension exponent
type: DatatypeProperty
domain: dimension
range: integer
alternative label: has SI thermodynamic temperature dimension exponent

SI time dimension exponent
type: DatatypeProperty
domain: dimension
range: integer
alternative label: has SI time dimension exponent

definition factor
type: DatatypeProperty
domain: measurement scale
range: float
alternative label: has definition factor

definition off-set
type: DatatypeProperty
domain: measurement scale
range: float
alternative label: has definition off-set

exponent
type: DatatypeProperty
type: FunctionalProperty
domain: unit exponentiation
range: integer
alternative label: has exponent

factor
type: DatatypeProperty
type: FunctionalProperty
domain: prefix
range: float
alternative label: has factor

numerical value
type: DatatypeProperty
domain: Class
  union of: measure
  union of: point
alternative label: has numerical value

rank
type: DatatypeProperty
type: FunctionalProperty
domain: ordered measurement scale category
range: integer
alternative label: has rank

absorbed dose
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Absorbed dose unit
comment: Absorbed dose is the energy deposited in a medium by ionizing radiation. It is a derived quantity in the International System of Units. Absorbed dose is energy divided by mass.
alternative label: total ionizing dose

amount of money
type: Class
subclass of: quantity

amount of substance
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Amount of substance unit
subclass of: Restriction
  on property: dimension
  has value: amount of substance dimension
type: NamedIndividual
unit of measure: mole
symbol: n
comment: Amount of substance is the number of elementary entities such as atoms, molecules, electrons, particles, etc. present in a phenomenon. It is a base quantity in the International System of Units.
label: stofhoeveelheid @nl

amount of substance concentration
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Amount of substance concentration unit
subclass of: Restriction
  on property: dimension
  has value: amount of substance concentration dimension
type: NamedIndividual
unit of measure: molair
unit of measure: mole per cubic metre
unit of measure: mole per litre
alternative label: molar concentration
alternative label: molaire concentratie @nl
symbol: C

amount of substance fraction
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Amount of substance fraction unit
alternative label: amount-of-substance fraction
alternative label: mole fraction
alternative label: molfractie @nl
alternative symbol: y
symbol: x

amount of substance ratio
type: Class
subclass of: quantity
alternative label: amount-of-substance ratio
alternative label: molar ratio of solution
alternative label: mole ratio
symbol: r

atomic mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: International Unit
unit of measure: grain
unit of measure: gram
unit of measure: ounce (apothecaries')
unit of measure: ounce (avoirdupois)
unit of measure: pound (apthecaries')
unit of measure: pound (avoirdupois)
unit of measure: slug
unit of measure: solar mass
unit of measure: ton (long)
unit of measure: ton (short)
unit of measure: ton (short assay)
unit of measure: tonne
unit of measure: unified atomic mass unit
symbol: m_a

atomic mass constant
type: Class
subclass of: quantity
alternative label: unified atomic mass constant
symbol: m_u

binary prefix
type: Class
subclass of: prefix

Bit multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: prefix
  intersection of: Restriction
    on property: singular unit
    has value: bit
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

body label mass
type: Class
subclass of: label mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: body label weight

body mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: body weight

Byte multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: prefix
  intersection of: Restriction
    on property: singular unit
    has value: byte
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

Calorie-mean multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: calorie (mean)
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

cardinal scale
type: Class
subclass of: measurement scale
subclass of: Restriction
  on property: element
  all values from: fixed point

cell density
type: Class
subclass of: quantity

compound unit
type: Class
subclass of: unit of measure

dimension
type: Class
comment: Dimensions are abstract properties of units and quantities neglecting their vectorial or tensorial character and all numerical factors including their sign.

dry body mass
type: Class
subclass of: dry mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: dry body weight

dry mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: dry weight

effective mass
type: Class
subclass of: quantity
symbol: m*

fixed point
type: Class
subclass of: point
subclass of: Restriction
  on property: definition
  all values from: Class
    union of: fixed point
    union of: measure
    union of: quantity

fixed zero point
type: Class
subclass of: fixed point
subclass of: Restriction
  on property: numerical value
  has value: 0

Gram multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: gram
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

Gram multiple or submultiple per litre
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: numerator
    all values from: Gram multiple or submultiple
  intersection of: Restriction
    on property: denominator
    has value: litre
  intersection of: Restriction
    on property: denominator
    cardinality: 1
  intersection of: Restriction
    on property: numerator
    cardinality: 1
subclass of: unit division

Gram multiple or submultiple per litre multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: denominator
    all values from: Litre multiple or submultiple
  intersection of: Restriction
    on property: numerator
    all values from: Gram multiple or submultiple
  intersection of: Restriction
    on property: denominator
    cardinality: 1
  intersection of: Restriction
    on property: numerator
    cardinality: 1
subclass of: unit division

Gram per litre multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: denominator
    all values from: Litre multiple or submultiple
  intersection of: Restriction
    on property: numerator
    has value: gram
  intersection of: Restriction
    on property: denominator
    cardinality: 1
  intersection of: Restriction
    on property: numerator
    cardinality: 1
subclass of: unit division

interval scale
type: Class
subclass of: cardinal scale

Joule multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: joule
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

label mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: label weight

Litre multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: litre
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

Lumen multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: lumen
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

Lux multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: lux
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

mass
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Mass unit
subclass of: Restriction
  on property: dimension
  has value: mass dimension
type: NamedIndividual
unit of measure: International Unit
unit of measure: grain
unit of measure: gram
unit of measure: ounce (apothecaries')
unit of measure: ounce (avoirdupois)
unit of measure: pound (apthecaries')
unit of measure: pound (avoirdupois)
unit of measure: slug
unit of measure: solar mass
unit of measure: ton (long)
unit of measure: ton (short)
unit of measure: ton (short assay)
unit of measure: tonne
unit of measure: unified atomic mass unit
symbol: m
unofficial label: weight
label: 质量 @zh
comment: Mass is the amount of matter of a phenomenon. It is a base quantity in the International System of Units. Mass is force divided by acceleration.
label: massa @nl

measure
type: Class
comment: A measure combines a number to a unit of measure or an interval or ratio scale. For example, "3 m" is a measure.

measurement scale
type: Class
disjoint union of: interval scale
disjoint union of: nominal scale
disjoint union of: ordinal scale
disjoint union of: ratio scale
comment: Measurement scales are concepts used for the expression of quantities. Four types of measurement scales are: nominal scales, ordinal scales, interval scales and ratio scales. The latter two scales are also called cardinal scales. An example of a scale is the Celsius scale, a temperature scale.
alternative label: scale

measurement scale category
type: Class
subclass of: Restriction
  on property: definition
  all values from: Class
    union of: measure
    union of: measurement scale category
    union of: quantity
comment: A measurement scale category is an element of a nominal or ordinal scale, for example, the category number 10 of the Beaufort scale, indicating storm.

Molair multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: molair
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

molar mass
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Molar mass unit
label: molaire massa @nl
symbol: M

molar volume
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Molar volume unit
label: molair volume @nl
symbol: V_m

Mole multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: mole
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

Mole multiple or submultiple per litre
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: numerator
    all values from: Mole multiple or submultiple
  intersection of: Restriction
    on property: denominator
    has value: litre
  intersection of: Restriction
    on property: denominator
    cardinality: 1
  intersection of: Restriction
    on property: numerator
    cardinality: 1
subclass of: unit division

Mole multiple or submultiple per litre multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: denominator
    all values from: Litre multiple or submultiple
  intersection of: Restriction
    on property: numerator
    all values from: Mole multiple or submultiple
  intersection of: Restriction
    on property: denominator
    cardinality: 1
  intersection of: Restriction
    on property: numerator
    cardinality: 1
subclass of: unit division

Mole per litre multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: denominator
    all values from: Litre multiple or submultiple
  intersection of: Restriction
    on property: numerator
    has value: mole
  intersection of: Restriction
    on property: denominator
    cardinality: 1
  intersection of: Restriction
    on property: numerator
    cardinality: 1
subclass of: unit division

neck ring mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: neck ring weight

nominal scale
type: Class
subclass of: measurement scale
subclass of: Restriction
  on property: element
  all values from: measurement scale category

nuclear mass
type: Class
subclass of: quantity
symbol: m_n

Ohm multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: ohm
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

ordered measurement scale category
type: Class
subclass of: measurement scale category

ordinal scale
type: Class
subclass of: measurement scale
subclass of: Restriction
  on property: element
  all values from: ordered measurement scale category

organ dose equivalent
type: Class
subclass of: Dose equivalent
type: NamedIndividual
unit of measure: rem
unit of measure: sievert

phenomenon
type: Class
comment: A phenomenon is the qualitative object (e.g., food, star, molecule) that has quantifiable (standardised) aspects (e.g, length, mass, time).

point
type: Class
comment: A point is an element of an interval scale or a ratio scale, for example, 273.16 on the Kelvin scale indicates the triple point of water thermodynamic temperature.

prefix
type: Class
disjoint union of: binary prefix
disjoint union of: SI prefix
comment: A prefix is a name that precedes a basic unit of measure to indicate a decimal multiple or fraction of the unit. Each prefix has a unique symbol that is prepended to the unit symbol. For example, an electric current of 0.000 000 001 ampere is written by using the SI-prefix nano as 1 nanoampere or 1 nA.

quantity
type: Class
comment: A quantity is a representation of a quantifiable (standardised) aspect (such as length, mass, and time) of a phenomenon (e.g., a star, food, or a molecule). Quantities are classified according to similarity in (implicit) metrological aspect, e.g. the length of my speedboat and the length of my racing car are classified as length.

ratio scale
type: Class
subclass of: cardinal scale

reduced mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: International Unit
unit of measure: grain
unit of measure: gram
unit of measure: ounce (apothecaries')
unit of measure: ounce (avoirdupois)
unit of measure: pound (apthecaries')
unit of measure: pound (avoirdupois)
unit of measure: slug
unit of measure: ton (long)
unit of measure: ton (short)
unit of measure: ton (short assay)
unit of measure: tonne
unit of measure: unified atomic mass unit
alternative symbol: m_r
label: gereduceerde massa @nl
symbol: μ

SI prefix
type: Class
subclass of: prefix

singular unit
type: Class
subclass of: unit of measure
subclass of: Restriction
  on property: definition
  all values from: Class
    union of: measure
    union of: quantity
    union of: unit of measure

straw mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: straw weight

system of units
type: Class
comment: In order to achieve a coherent, interdependent set of units of measure in the wide variety of units that exist, units are organised in systems of units. A system of units is based on a set of units chosen by convention to be the system’s base units, units that are considered to be mutually independent (i.e., can’t be expressed in terms of each other).

Tonne multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: tonne
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

top mass
type: Class
subclass of: mass
type: NamedIndividual
unit of measure: gram
unit of measure: tonne
unofficial label: top weight

total density parameter
type: Class
subclass of: Density parameter
comment: The total density parameter.
symbol: Ω_T

Unified atomic mass unit multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: unified atomic mass unit
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

unit division
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: denominator
    cardinality: 1
  intersection of: Restriction
    on property: numerator
    cardinality: 1
subclass of: compound unit

unit exponentiation
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: base
    cardinality: 1
  intersection of: Restriction
    on property: exponent
    cardinality: 1
subclass of: compound unit

unit multiple or submultiple
type: Class
subclass of: unit of measure
subclass of: Restriction
  on property: definition
  all values from: Class
    union of: measure
    union of: quantity
    union of: unit of measure

unit multiplication
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: term 1
    cardinality: 1
  intersection of: Restriction
    on property: term 2
    cardinality: 1
subclass of: compound unit

unit of measure
type: Class
disjoint union of: singular unit
disjoint union of: unit division
disjoint union of: unit exponentiation
disjoint union of: unit multiple or submultiple
disjoint union of: unit multiplication
comment: A unit of measure is a definite magnitude of a quantity, defined and adopted by convention and/or by law. It is used as a standard for measurement of the same quantity, where any other value of the quantity can be expressed as a simple multiple of the unit of measure. For example, length is a quantity; the metre is a unit of length that represents a definite predetermined length. When we say 10 metre (or 10 m), we actually mean 10 times the definite predetermined length called "metre".
alternative label: unit
alternative label: unit of measurement

vectorial or tensorial character
type: Class
comment: A quantity has vectorial or tensorial character: scalar, vector, matrix or tensor.

Volt multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: volt
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

volume
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Volume unit
subclass of: Restriction
  on property: dimension
  has value: volume dimension
type: NamedIndividual
unit of measure: barrel (US)
unit of measure: dry gallon (US)
unit of measure: dry pint (US)
unit of measure: dry quart (US)
unit of measure: gallon (Imperial)
unit of measure: gallon (US)
unit of measure: gill (Imperial)
unit of measure: gill (US)
unit of measure: liquid pint (US)
unit of measure: liquid quart (US)
unit of measure: litre
unit of measure: peck (US)
unit of measure: pint (Imperial)
unit of measure: quart (Imperial)
unit of measure: stere
unit of measure: tablespoon (US)
unit of measure: teaspoon (US)
unit of measure: ton (register)
alternative symbol: v
label: 体积 @zh
symbol: V
alternative label: inhoud @nl
comment: Volume is a measure of how much three-dimensional space any phenomenon occupies. It is a derived quantity in the International System of Units. Volume is length to the power 3.

volume fraction
type: Class
subclass of: quantity
subclass of: Restriction
  on property: value
  all values from: Restriction
    on property: unit of measure or measurement scale
    all values from: Volume fraction unit
label: volumefractie @nl
alternative label: concentration (v/v)
symbol: φ

volume in γ phase space
type: Class
subclass of: quantity
symbol: Ω

Watt multiple or submultiple
type: Class
equivalent class: Class
  intersection of: Restriction
    on property: prefix
    all values from: SI prefix
  intersection of: Restriction
    on property: singular unit
    has value: watt
  intersection of: Restriction
    on property: prefix
    cardinality: 1
  intersection of: Restriction
    on property: singular unit
    cardinality: 1
subclass of: unit multiple or submultiple

British system of units
type: NamedIndividual
type: system of units
label: Britse systeem van eenheden @nl
alternative label: foot-pound-second system of units

Gaussian system of units
type: NamedIndividual
type: system of units
base unit: gram
label: Gaussische eenhedenstelsel @nl
alternative label: Gaussian CGS system of units
alternative label: mixed CGS system of units
alternative label: symmetrised CGS system of units

International System of Units
type: NamedIndividual
type: system of units
base unit: mole
derived unit: gram
derived unit: joule
derived unit: lumen
derived unit: lux
derived unit: mole per cubic metre
derived unit: ohm
derived unit: siemens
derived unit: sievert
derived unit: tesla
derived unit: volt
derived unit: watt
derived unit: weber
label: Internationale Stelsel van Eenheden @nl
abbreviation: SI

International Unit
type: NamedIndividual
type: singular unit
dimension: mass dimension
symbol: IU

absorbed dose rate dimension
type: NamedIndividual
type: dimension
SI amount of substance dimension exponent: 0
SI electric current dimension exponent: 0
SI length dimension exponent: 2
SI luminous intensity dimension exponent: 0
SI mass dimension exponent: 0
SI thermodynamic temperature dimension exponent: 0
SI time dimension exponent: -3

amount of substance dimension
type: NamedIndividual
type: dimension
SI amount of substance dimension exponent: 1
SI electric current dimension exponent: 0
SI length dimension exponent: 0
SI luminous intensity dimension exponent: 0
SI mass dimension exponent: 0
SI thermodynamic temperature dimension exponent: 0
SI time dimension exponent: 0
label: stofhoeveelheiddimensie @nl
symbol: N

amount of substance concentration dimension
type: NamedIndividual
type: dimension
SI amount of substance dimension exponent: 1
SI electric current dimension exponent: 0
SI length dimension exponent: -3
SI luminous intensity dimension exponent: 0
SI mass dimension exponent: 0
SI thermodynamic temperature dimension exponent: 0
SI time dimension exponent: 0

barrel (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US barrel is a unit of volume defined as 1.589873e-1 cubic metre.
alternative label: US barrel
symbol: bbl

bit
type: NamedIndividual
type: singular unit
comment: The bit is a unit of information capacity defined as the information capacity of one binary digit.
label: 位元 @zh
symbol: bit

byte
type: NamedIndividual
type: singular unit
comment: The byte is a unit of information capacity defined as 8 bit.
label: 字节 @zh
symbol: B

calorie (15 °C)
type: NamedIndividual
type: singular unit
comment: The 15 °C calorie is a unit of energy defined as 4.18580 joule.
LaTeX symbol: cal_{15}
alternative label: 15 °C calorie
symbol: cal_15

calorie (20 °C)
type: NamedIndividual
type: singular unit
comment: The 20 °C calorie is a unit of energy defined as 4.18190 joule.
LaTeX command: \calorieTwentyC
LaTeX symbol: cal_{20}
alternative label: 20 °C calorie
symbol: cal_20

calorie (International Table)
type: NamedIndividual
type: singular unit
comment: The International Table calorie is a unit of energy defined as 4.1868 joule.
LaTeX symbol: cal_{IT}
alternative label: International Steam Table calorie
alternative label: International Table calorie
alternative label: calorie (International Steam Table)
symbol: cal_IT

calorie (mean)
type: NamedIndividual
type: singular unit
comment: The mean calorie is a unit of energy defined as 4.19002 joule.
alternative label: mean calorie
alternative symbol: c
symbol: cal

calorie (thermochemical)
type: NamedIndividual
type: singular unit
comment: The thermochemical calorie is a unit of energy defined as 4.184 joule.
LaTeX symbol: cal_{th}
alternative label: thermochemical calorie
symbol: cal_th

dry gallon (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US dry gallon is a unit of volume defined as 4.40488377086e-3 cubic metre.
alternative label: US dry gallon
alternative label: gallon (US dry)
symbol: gal

dry pint (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US dry pint is a unit of volume defined as 5.506105e-4 cubic metre.
alternative label: US dry pint
alternative label: pint (US dry)
symbol: dry pt

dry quart (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US dry quart is a unit of volume defined as 1.101221e-3 cubic metre.
alternative label: US dry quart
alternative label: quart (US dry)
symbol: dry qt

gallon (Imperial)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The Imperial gallon is a unit of volume defined as 4.54609e-3 cubic metre.
alternative label: Imperial gallon
symbol: gal

gallon (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US gallon is a unit of volume defined as 3.785412e-3 cubic metre.
alternative label: US gallon
symbol: gal

gamma
type: NamedIndividual
type: singular unit
comment: The gamma is a unit of magnetic flux density defined as 1.0e-9 tesla.
LaTeX command: \gammaUnit
symbol: γ

gill (Imperial)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The Imperial gill is a unit of volume defined as 1.420653e-4 cubic metre.
alternative label: Imperial gill
symbol: gi

gill (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US gill is a unit of volume defined as 1.182941e-4 cubic metre.
alternative label: US gill
symbol: gi

grain
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The grain is a unit of mass defined as 6.479891e-5 kilogram.
symbol: gr

gram
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The gram is a unit of mass defined as 1.0e-3 kilogram.
label: 克 @zh
symbol: g

joule
type: NamedIndividual
type: singular unit
comment: The joule is a unit of energy defined as kilogram times square metre divided by second squared.
label: 焦耳 @zh
longcomment: The joule is a unit of energy defined as kilogram times square metre divided by second squared. The joule is a derived unit in the International System of Units.
symbol: J

liquid pint (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US liquid pint is a unit of volume defined as 4.731765e-4 cubic metre.
alternative label: US liquid pint
alternative label: pint (US liquid)
symbol: liq pt

liquid quart (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US liquid quart is a unit of volume defined as 9.463529e-4 cubic metre.
alternative label: US liquid quart
alternative label: quart (US liquid)
symbol: liq qt

litre
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The litre is a unit of volume defined as 1.0e-3 cubic metre.
label: liter @nl
label: 公升 @zh
alternative label: liter
alternative symbol: L
symbol: l

lumen
type: NamedIndividual
type: singular unit
comment: The lumen is a unit of luminous flux defined as candela times steradian = lux times square metre.
longcomment: The lumen is a unit of luminous flux defined as candela times steradian = lux times square metre. The lumen is a derived unit in the International System of Units.
symbol: lm

lux
type: NamedIndividual
type: singular unit
comment: The lux is a unit of illuminance defined as lumen divided by square metre = candela times steradian divided by square metre.
longcomment: The lux is a unit of illuminance defined as lumen divided by square metre = candela times steradian divided by square metre. The lux is a derived unit in the International System of Units.
symbol: lx

mass dimension
type: NamedIndividual
type: dimension
SI amount of substance dimension exponent: 0
SI electric current dimension exponent: 0
SI length dimension exponent: 0
SI luminous intensity dimension exponent: 0
SI mass dimension exponent: 1
SI thermodynamic temperature dimension exponent: 0
SI time dimension exponent: 0
label: massadimensie @nl
symbol: M

mass of the international prototype of the kilogram
type: NamedIndividual
type: mass

molair
type: NamedIndividual
type: singular unit
definition: mole per litre
dimension: amount of substance concentration dimension
comment: Molair is a unit of amount of substance concentration defined as 1 mole per litre.
symbol: M

mole
type: NamedIndividual
type: singular unit
dimension: amount of substance dimension
comment: The mole is a unit of amount of substance defined as the amount of substance of a system that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12.
label: mol @nl
longcomment: The mole is a unit of amount of substance defined as the amount of substance of a system that contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12. The mole is a base unit in the International System of Units.
symbol: mol

mole per cubic metre
type: NamedIndividual
type: unit division
dimension: amount of substance concentration dimension
numerator: mole
comment: Mole per cubic metre is a unit of amount of substance concentration defined as mole divided by cubic metre.
label: mol per kubieke meter @nl
alternative symbol: mol m-3
alternative symbol: mol·m-3
longcomment: Mole per cubic metre is a unit of amount of substance concentration defined as mole divided by cubic metre. Mole per cubic metre is a derived unit in the International System of Units.
symbol: mol/m3

mole per litre
type: NamedIndividual
type: unit division
denominator: litre
dimension: amount of substance concentration dimension
numerator: mole
comment: Mole per litre is a unit of amount of substance concentration defined as mole divided by litre.
label: mole per liter @nl
alternative symbol: mol l-1
alternative symbol: mol·l-1
longcomment: Mole per litre is a unit of amount of substance concentration defined as mole divided by litre. Mole per litre is a derived unit in the International System of Units.
symbol: mol/l

ohm
type: NamedIndividual
type: singular unit
comment: The ohm is a unit of electrical resistance defined as volt divided by ampere = square metre times kilogram divided by second to the power 3 times ampere squared.
longcomment: The ohm is a unit of electrical resistance defined as volt divided by ampere = square metre times kilogram divided by second to the power 3 times ampere squared. The ohm is a derived unit in the International System of Units.
symbol: Ω

one binary digit
type: NamedIndividual
type: phenomenon

ounce (apothecaries')
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The apothecaries' ounce is a unit of mass defined as 3.110348e-2 kilogram.
alternative label: apothecaries' ounce
alternative label: ounce (troy)
alternative label: troy ounce
alternative symbol: oz (apoth)
symbol: oz (ap.)

ounce (avoirdupois)
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The avoirdupois ounce is a unit of mass defined as 2.834952e-2 kilogram.
alternative label: avoirdupois ounce
alternative symbol: oz (av.)
alternative symbol: oz avdp
symbol: oz

peck (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US peck is a unit of volume defined as 8.809768e-3 cubic metre.
alternative label: US peck
symbol: pk

pint (Imperial)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The pint is a unit of volume defined as 568.26125 millilitre.
alternative label: Imperial pint

pound (apthecaries')
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The apothecaries' pound is a unit of mass defined as 3.732417e-1 kilogram.
alternative label: apothecaries' pound
alternative label: pound (troy)
alternative label: troy pound
symbol: lb

pound (avoirdupois)
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The avoirdupois pound is a unit of mass defined as 4.535924e-1 kilogram.
alternative label: avoirdupois pound
symbol: lb

poundal
type: NamedIndividual
type: singular unit
comment: The poundal is a unit of force defined as 1.382550e-1 newton.

quad
type: NamedIndividual
type: singular unit
comment: The quad is a unit of energy defined as 1.0e15 British thermal unit (International Table).
LaTeX command: \quadUnit

quart (Imperial)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The Imperial quart is a unit of volume defined as 1.1365 litre.
alternative label: Imperial quart

rem
type: NamedIndividual
type: singular unit
comment: The rem is a unit of dose equivalent defined as 1.0e-2 sievert.
symbol: rem

rhe
type: NamedIndividual
type: singular unit
comment: The rhe is a unit of fluidity defined as 10 reciprocal pascal second (time).

rod (US)
type: NamedIndividual
type: singular unit
comment: The US rod is a unit of length defined as 5.029210 metre.
alternative label: US rod
alternative label: perch
alternative label: pole
symbol: rd

shake
type: NamedIndividual
type: singular unit
comment: The shake is a unit of time defined as 1.0e-8 second.

shannon
type: NamedIndividual
type: singular unit
definition: bit
comment: The shannon is a unit of information capacity defined as 1 bit.
symbol: Sh

siemens
type: NamedIndividual
type: singular unit
comment: The siemens is a unit of electrical conductance defined as 1 divided by ohm = ampere divided by volt = coulomb squared times second divided by kilogram times square metre = ampere squared times second to the power 3 divided by kilogram times square metre.
longcomment: The siemens is a unit of electrical conductance defined as 1 divided by ohm = ampere divided by volt = coulomb squared times second divided by kilogram times square metre = ampere squared times second to the power 3 divided by kilogram times square metre. The siemens is a derived unit in the International System of Units.
symbol: S

sievert
type: NamedIndividual
type: singular unit
comment: The sievert is a unit of dose equivalent defined as joule divided by kilogram = square metre divided by second squared.
longcomment: The sievert is a unit of dose equivalent defined as joule divided by kilogram = square metre divided by second squared. The sievert is a derived unit is the International System of Units.
symbol: Sv

slug
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The slug is a unit of mass defined as 1.459390e1 kilogram.
label: 斯勒格 @zh
symbol: slug

solar mass
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: Solar mass is a unit used in astronomy to denote stellar or galactic masses (http://en.wikipedia.org/wiki/Solar_mass).
label: zonsmassa @nl
LaTeX symbol: M_{\astrosun}
symbol: M_☉

stere
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The stere is a unit of volume defined as cubic metre.

stilb
type: NamedIndividual
type: singular unit
comment: The stilb is a unit of luminance defined as 1.0e4 candela per square metre.
symbol: sb

stokes
type: NamedIndividual
type: singular unit
comment: The stokes is a unit of kinematic viscosity defined as 1.0e-4 square metre per second (time).
symbol: St

tablespoon (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US tablespoon is a unit of volume defined as 1.478676e-5 cubic metre.
alternative label: US tablespoon

teaspoon (US)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The US teaspoon is a unit of volume defined as 4.928922e-6 cubic metre.
alternative label: US teaspoon

tesla
type: NamedIndividual
type: singular unit
comment: The tesla is a unit of magnetic flux density defined as volt times second divided by square metre = newton divided by ampere times metre = weber divided by square metre = kilogram divided by coulomb times second = kilogram divided by ampere times second squared.
longcomment: The tesla is a unit of magnetic flux density defined as volt times second divided by square metre = newton divided by ampere times metre = weber divided by square metre = kilogram divided by coulomb times second = kilogram divided by ampere times second squared. The tesla is a derived unit in the International System of Units.
symbol: T

therm (EC)
type: NamedIndividual
type: singular unit
comment: The EC therm is a unit of energy defined as 1.05506e8 joule.
alternative label: EC therm

therm (US)
type: NamedIndividual
type: singular unit
comment: The US therm is a unit of energy defined as 1.054804e8 joule.
alternative label: US therm

ton-force (short)
type: NamedIndividual
type: singular unit
comment: The short ton-force is a unit of force defined as 8.896443e3 newton.
alternative label: short ton-force

ton (long)
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The long ton is a unit of mass defined as 1.016047e3 kilogram.
alternative label: long ton

ton (register)
type: NamedIndividual
type: singular unit
dimension: volume dimension
comment: The register ton is a unit of volume defined as 2.831658 cubic metre.
alternative label: register ton

ton (short)
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The short ton is a unit of mass defined as 9.071847e2 kilogram.
alternative label: short ton

ton (short assay)
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The short assay ton is a unit of mass defined as 2.916667e-2 kilogram.
alternative label: short assay ton

ton of TNT
type: NamedIndividual
type: singular unit
comment: The ton of TNT is a unit of energy defined as 4.184e9 joule.

ton of refrigeration
type: NamedIndividual
type: singular unit
comment: The ton of refrigeration is a unit of power defined as 3.516853e3 watt.

tonne
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The tonne is a unit of mass defined as 1000 kilogram.
label: ton @nl
label: 公噸 @zh
alternative label: metric ton
symbol: t

torr
type: NamedIndividual
type: singular unit
comment: The torr is a unit of pressure defined as 1.333224e2 pascal.
symbol: Torr

unified atomic mass unit
type: NamedIndividual
type: singular unit
dimension: mass dimension
comment: The unified atomic mass unit is a unit of mass defined as 1.660538782(83)e-27 kilogram.
symbol: u

volt
type: NamedIndividual
type: singular unit
comment: The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3.
longcomment: The volt is a unit of electric potential defined as watt divided by ampere = joule divided by coulomb = newton times metre divided by ampere times second = kilogram times square metre divided by ampere times second to the power 3. The volt is a derived unit in the International System of Units.
symbol: V

volume dimension
type: NamedIndividual
type: dimension
SI amount of substance dimension exponent: 0
SI electric current dimension exponent: 0
SI length dimension exponent: 3
SI luminous intensity dimension exponent: 0
SI mass dimension exponent: 0
SI thermodynamic temperature dimension exponent: 0
SI time dimension exponent: 0
label: volumedimensie @nl

watt
type: NamedIndividual
type: singular unit
comment: The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3.
longcomment: The watt is a unit of power defined as joule divided by second = newton times metre divided by second = volt times ampere = kilogram times square metre divided by second to the power 3. The watt is a derived unit in the International System of Units.
symbol: W

weber
type: NamedIndividual
type: singular unit
comment: The weber is a unit of magnetic flux defined as kilogram times square metre divided by second squared times ampere = volt times second = joule divided by ampere.
longcomment: The weber is a unit of magnetic flux defined as kilogram times square metre divided by second squared times ampere = volt times second = joule divided by ampere. The weber is a derived unit in the International System of Units.
symbol: Wb

year
type: NamedIndividual
type: singular unit
comment: The year is a unit of time defined as 3.1536e7 second.
label: jaar @nl
LaTeX command: \yearUnit
alternative symbol: y
alternative symbol: yr
symbol: a

year (sidereal)
type: NamedIndividual
type: singular unit
comment: The sidereal year is a unit of time defined as 3.155815e7 second.
alternative label: sidereal year

year (tropical)
type: NamedIndividual
type: singular unit
comment: The tropical year is a unit of time defined as 3.155693e7 second.
alternative label: tropical year

IAU 2012
creator: IAU Division I Working Group Numerical Standards
date: 2012
publisher: International Astronomical Union

Explanatory Supplement to the Astronomical Almanac
date: 1992
publisher: University Science Books
creator: Kenneth Siedelmann
isbn10: 1891389459

Astrophysical Journal
short title: ApJ
uri: http://iopscience.iop.org/0004-637X/

Astrophysical Techniques
edition: 5
uri: http://www.crcpress.com/product/isbn/9781466511156
creator: C.R. Kitchin
isbn13: 9781466511156
date: 2003
publisher: Institute of Physics Publishing

Brengt Strömgren

Cambridge University Press
based near: Cambridge, UK

David L. Crawford

Hajo Rijgersberg

Resolution B2
reproduced in: IAU 2012

Institute of Physics Publishing
based near: Bristol, UK

Introduction to Astronomical Photometry
date: 2007
uri: http://ebooks.cambridge.org/ebook.jsf
isbn13: 9780521847117
publisher: Cambridge University Press
creator: Osman Demircan
edition: 2
creator: Edwin Budding

University Science Books
based near: Sausalito, California

Vrije Universiteit
based near: Amsterdam, The Netherlands

Vistas in Astronomy

Apparent place of a star
reproduced in: Astronomical Algorithms
page start: 149
page end: 158

constant current that produces an attractive force of 2e-7 newton per metre of length between two straight parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum
label: constant current that produces an attractive force of 2e–7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum

length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second

luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540e12 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian

Astronomical Algorithms
subject: Algorithms
uri: http://www.willbell.com/math/mc1.htm
date: 1998
edition: 2
isbn10: 0943396611
subject: Astronomy - Data processing
creator: Jean Meeus
publisher: Willmann-Bell Inc.
subject: Astronomy - Problems, exercises