joshwlewis/unitwise

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data/derived_unit.yaml

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---
- :names: the number ten for arbitrary powers
  :symbol: '10'
  :primary_code: 10*
  :secondary_code: 10*
  :scale:
    :value: 10
    :unit_code: '1'
  :classification: dimless
  :property: number
  :metric: false
  :special: false
  :arbitrary: false
- :names: the number ten for arbitrary powers
  :symbol: '10'
  :primary_code: 10^
  :secondary_code: 10^
  :scale:
    :value: 10
    :unit_code: '1'
  :classification: dimless
  :property: number
  :metric: false
  :special: false
  :arbitrary: false
- :names: the number pi
  :symbol: π
  :primary_code: "[pi]"
  :secondary_code: "[PI]"
  :scale:
    :value: !ruby/object:BigDecimal 81:0.31415926535897932384626433832795028841971693993751058209749445923e1
    :unit_code: '1'
  :classification: dimless
  :property: number
  :metric: false
  :special: false
  :arbitrary: false
- :names: percent
  :symbol: "%"
  :primary_code: "%"
  :secondary_code: "%"
  :scale:
    :value: 1
    :unit_code: 10*-2
  :classification: dimless
  :property: fraction
  :metric: false
  :special: false
  :arbitrary: false
- :names: parts per thousand
  :symbol: ppth
  :primary_code: "[ppth]"
  :secondary_code: "[PPTH]"
  :scale:
    :value: 1
    :unit_code: 10*-3
  :classification: dimless
  :property: fraction
  :metric: false
  :special: false
  :arbitrary: false
- :names: parts per million
  :symbol: ppm
  :primary_code: "[ppm]"
  :secondary_code: "[PPM]"
  :scale:
    :value: 1
    :unit_code: 10*-6
  :classification: dimless
  :property: fraction
  :metric: false
  :special: false
  :arbitrary: false
- :names: parts per billion
  :symbol: ppb
  :primary_code: "[ppb]"
  :secondary_code: "[PPB]"
  :scale:
    :value: 1
    :unit_code: 10*-9
  :classification: dimless
  :property: fraction
  :metric: false
  :special: false
  :arbitrary: false
- :names: parts per trillion
  :symbol: pptr
  :primary_code: "[pptr]"
  :secondary_code: "[PPTR]"
  :scale:
    :value: 1
    :unit_code: 10*-12
  :classification: dimless
  :property: fraction
  :metric: false
  :special: false
  :arbitrary: false
- :names: mole
  :symbol: mol
  :primary_code: mol
  :secondary_code: MOL
  :scale:
    :value: !ruby/object:BigDecimal 18:0.60221367e1
    :unit_code: 10*23
  :classification: si
  :property: amount of substance
  :metric: true
  :special: false
  :arbitrary: false
- :names: steradian
  :symbol: sr
  :primary_code: sr
  :secondary_code: SR
  :scale:
    :value: 1
    :unit_code: rad2
  :classification: si
  :property: solid angle
  :metric: true
  :special: false
  :arbitrary: false
- :names: hertz
  :symbol: Hz
  :primary_code: Hz
  :secondary_code: HZ
  :scale:
    :value: 1
    :unit_code: s-1
  :classification: si
  :property: frequency
  :metric: true
  :special: false
  :arbitrary: false
- :names: newton
  :symbol: N
  :primary_code: N
  :secondary_code: N
  :scale:
    :value: 1
    :unit_code: kg.m/s2
  :classification: si
  :property: force
  :metric: true
  :special: false
  :arbitrary: false
- :names: pascal
  :symbol: Pa
  :primary_code: Pa
  :secondary_code: PAL
  :scale:
    :value: 1
    :unit_code: N/m2
  :classification: si
  :property: pressure
  :metric: true
  :special: false
  :arbitrary: false
- :names: joule
  :symbol: J
  :primary_code: J
  :secondary_code: J
  :scale:
    :value: 1
    :unit_code: N.m
  :classification: si
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: watt
  :symbol: W
  :primary_code: W
  :secondary_code: W
  :scale:
    :value: 1
    :unit_code: J/s
  :classification: si
  :property: power
  :metric: true
  :special: false
  :arbitrary: false
- :names: ampère
  :symbol: A
  :primary_code: A
  :secondary_code: A
  :scale:
    :value: 1
    :unit_code: C/s
  :classification: si
  :property: electric current
  :metric: true
  :special: false
  :arbitrary: false
- :names: volt
  :symbol: V
  :primary_code: V
  :secondary_code: V
  :scale:
    :value: 1
    :unit_code: J/C
  :classification: si
  :property: electric potential
  :metric: true
  :special: false
  :arbitrary: false
- :names: farad
  :symbol: F
  :primary_code: F
  :secondary_code: F
  :scale:
    :value: 1
    :unit_code: C/V
  :classification: si
  :property: electric capacitance
  :metric: true
  :special: false
  :arbitrary: false
- :names: ohm
  :symbol: Ω
  :primary_code: Ohm
  :secondary_code: OHM
  :scale:
    :value: 1
    :unit_code: V/A
  :classification: si
  :property: electric resistance
  :metric: true
  :special: false
  :arbitrary: false
- :names: siemens
  :symbol: S
  :primary_code: S
  :secondary_code: SIE
  :scale:
    :value: 1
    :unit_code: Ohm-1
  :classification: si
  :property: electric conductance
  :metric: true
  :special: false
  :arbitrary: false
- :names: weber
  :symbol: Wb
  :primary_code: Wb
  :secondary_code: WB
  :scale:
    :value: 1
    :unit_code: V.s
  :classification: si
  :property: magentic flux
  :metric: true
  :special: false
  :arbitrary: false
- :names: degree Celsius
  :symbol: "°C"
  :primary_code: Cel
  :secondary_code: CEL
  :scale:
    :function_code: cel
    :value: 1
    :unit_code: K
  :classification: si
  :property: temperature
  :metric: true
  :special: true
  :arbitrary: false
- :names: tesla
  :symbol: T
  :primary_code: T
  :secondary_code: T
  :scale:
    :value: 1
    :unit_code: Wb/m2
  :classification: si
  :property: magnetic flux density
  :metric: true
  :special: false
  :arbitrary: false
- :names: henry
  :symbol: H
  :primary_code: H
  :secondary_code: H
  :scale:
    :value: 1
    :unit_code: Wb/A
  :classification: si
  :property: inductance
  :metric: true
  :special: false
  :arbitrary: false
- :names: lumen
  :symbol: lm
  :primary_code: lm
  :secondary_code: LM
  :scale:
    :value: 1
    :unit_code: cd.sr
  :classification: si
  :property: luminous flux
  :metric: true
  :special: false
  :arbitrary: false
- :names: lux
  :symbol: lx
  :primary_code: lx
  :secondary_code: LX
  :scale:
    :value: 1
    :unit_code: lm/m2
  :classification: si
  :property: illuminance
  :metric: true
  :special: false
  :arbitrary: false
- :names: becquerel
  :symbol: Bq
  :primary_code: Bq
  :secondary_code: BQ
  :scale:
    :value: 1
    :unit_code: s-1
  :classification: si
  :property: radioactivity
  :metric: true
  :special: false
  :arbitrary: false
- :names: gray
  :symbol: Gy
  :primary_code: Gy
  :secondary_code: GY
  :scale:
    :value: 1
    :unit_code: J/kg
  :classification: si
  :property: energy dose
  :metric: true
  :special: false
  :arbitrary: false
- :names: sievert
  :symbol: Sv
  :primary_code: Sv
  :secondary_code: SV
  :scale:
    :value: 1
    :unit_code: J/kg
  :classification: si
  :property: dose equivalent
  :metric: true
  :special: false
  :arbitrary: false
- :names:
  - gon
  - grade
  :symbol: "□<sup>g</sup>"
  :primary_code: gon
  :secondary_code: GON
  :scale:
    :value: !ruby/object:BigDecimal 18:0.9e0
    :unit_code: deg
  :classification: iso1000
  :property: plane angle
  :metric: false
  :special: false
  :arbitrary: false
- :names: degree
  :symbol: "°"
  :primary_code: deg
  :secondary_code: DEG
  :scale:
    :value: 2
    :unit_code: "[pi].rad/360"
  :classification: iso1000
  :property: plane angle
  :metric: false
  :special: false
  :arbitrary: false
- :names: minute
  :symbol: "'"
  :primary_code: "'"
  :secondary_code: "'"
  :scale:
    :value: 1
    :unit_code: deg/60
  :classification: iso1000
  :property: plane angle
  :metric: false
  :special: false
  :arbitrary: false
- :names: second
  :symbol: "''"
  :primary_code: "''"
  :secondary_code: "''"
  :scale:
    :value: 1
    :unit_code: "'/60"
  :classification: iso1000
  :property: plane angle
  :metric: false
  :special: false
  :arbitrary: false
- :names: liter
  :symbol: l
  :primary_code: l
  :secondary_code: L
  :scale:
    :value: 1
    :unit_code: dm3
  :classification: iso1000
  :property: volume
  :metric: true
  :special: false
  :arbitrary: false
- :names: liter
  :symbol: L
  :primary_code: L
  :scale:
    :value: 1
    :unit_code: l
  :classification: iso1000
  :property: volume
  :metric: true
  :special: false
  :arbitrary: false
- :names: are
  :symbol: a
  :primary_code: ar
  :secondary_code: AR
  :scale:
    :value: 100
    :unit_code: m2
  :classification: iso1000
  :property: area
  :metric: true
  :special: false
  :arbitrary: false
- :names: minute
  :symbol: min
  :primary_code: min
  :secondary_code: MIN
  :scale:
    :value: 60
    :unit_code: s
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: hour
  :symbol: h
  :primary_code: h
  :secondary_code: HR
  :scale:
    :value: 60
    :unit_code: min
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: day
  :symbol: d
  :primary_code: d
  :secondary_code: D
  :scale:
    :value: 24
    :unit_code: h
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: tropical year
  :symbol: a<sub>t</sub>
  :primary_code: a_t
  :secondary_code: ANN_T
  :scale:
    :value: !ruby/object:BigDecimal 18:0.36524219e3
    :unit_code: d
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: mean Julian year
  :symbol: a<sub>j</sub>
  :primary_code: a_j
  :secondary_code: ANN_J
  :scale:
    :value: !ruby/object:BigDecimal 18:0.36525e3
    :unit_code: d
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: mean Gregorian year
  :symbol: a<sub>g</sub>
  :primary_code: a_g
  :secondary_code: ANN_G
  :scale:
    :value: !ruby/object:BigDecimal 18:0.3652425e3
    :unit_code: d
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: year
  :symbol: a
  :primary_code: a
  :secondary_code: ANN
  :scale:
    :value: 1
    :unit_code: a_j
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: week
  :symbol: wk
  :primary_code: wk
  :secondary_code: WK
  :scale:
    :value: 7
    :unit_code: d
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: synodal month
  :symbol: mo<sub>s</sub>
  :primary_code: mo_s
  :secondary_code: MO_S
  :scale:
    :value: !ruby/object:BigDecimal 18:0.2953059e2
    :unit_code: d
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: mean Julian month
  :symbol: mo<sub>j</sub>
  :primary_code: mo_j
  :secondary_code: MO_J
  :scale:
    :value: 1
    :unit_code: a_j/12
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: mean Gregorian month
  :symbol: mo<sub>g</sub>
  :primary_code: mo_g
  :secondary_code: MO_G
  :scale:
    :value: 1
    :unit_code: a_g/12
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: month
  :symbol: mo
  :primary_code: mo
  :secondary_code: MO
  :scale:
    :value: 1
    :unit_code: mo_j
  :classification: iso1000
  :property: time
  :metric: false
  :special: false
  :arbitrary: false
- :names: tonne
  :symbol: t
  :primary_code: t
  :secondary_code: TNE
  :scale:
    :value: 1000
    :unit_code: kg
  :classification: iso1000
  :property: mass
  :metric: true
  :special: false
  :arbitrary: false
- :names: bar
  :symbol: bar
  :primary_code: bar
  :secondary_code: BAR
  :scale:
    :value: 100000
    :unit_code: Pa
  :classification: iso1000
  :property: pressure
  :metric: true
  :special: false
  :arbitrary: false
- :names: unified atomic mass unit
  :symbol: u
  :primary_code: u
  :secondary_code: AMU
  :scale:
    :value: !ruby/object:BigDecimal 18:0.16605402e-23
    :unit_code: g
  :classification: iso1000
  :property: mass
  :metric: true
  :special: false
  :arbitrary: false
- :names: electronvolt
  :symbol: eV
  :primary_code: eV
  :secondary_code: EV
  :scale:
    :value: 1
    :unit_code: "[e].V"
  :classification: iso1000
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: astronomic unit
  :symbol: AU
  :primary_code: AU
  :secondary_code: ASU
  :scale:
    :value: !ruby/object:BigDecimal 27:0.149597870691e6
    :unit_code: Mm
  :classification: iso1000
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: parsec
  :symbol: pc
  :primary_code: pc
  :secondary_code: PRS
  :scale:
    :value: 30856780000000000
    :unit_code: m
  :classification: iso1000
  :property: length
  :metric: true
  :special: false
  :arbitrary: false
- :names: velocity of light
  :symbol: "<i>c</i>"
  :primary_code: "[c]"
  :secondary_code: "[C]"
  :scale:
    :value: 299792458
    :unit_code: m/s
  :classification: const
  :property: velocity
  :metric: true
  :special: false
  :arbitrary: false
- :names: Planck constant
  :symbol: "<i>h</i>"
  :primary_code: "[h]"
  :secondary_code: "[H]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.66260755e-33
    :unit_code: J.s
  :classification: const
  :property: action
  :metric: true
  :special: false
  :arbitrary: false
- :names: Boltzmann constant
  :symbol: "<i>k</i>"
  :primary_code: "[k]"
  :secondary_code: "[K]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.1380658e-22
    :unit_code: J/K
  :classification: const
  :property: "(unclassified)"
  :metric: true
  :special: false
  :arbitrary: false
- :names: permittivity of vacuum
  :symbol: "<i>ε<sub><r>0</r></sub></i>"
  :primary_code: "[eps_0]"
  :secondary_code: "[EPS_0]"
  :scale:
    :value: !ruby/object:BigDecimal 27:0.8854187817e-11
    :unit_code: F/m
  :classification: const
  :property: electric permittivity
  :metric: true
  :special: false
  :arbitrary: false
- :names: permeability of vacuum
  :symbol: "<i>μ<sub><r>0</r></sub></i>"
  :primary_code: "[mu_0]"
  :secondary_code: "[MU_0]"
  :scale:
    :value: 1
    :unit_code: 4.[pi].10*-7.N/A2
  :classification: const
  :property: magnetic permeability
  :metric: true
  :special: false
  :arbitrary: false
- :names: elementary charge
  :symbol: "<i>e</i>"
  :primary_code: "[e]"
  :secondary_code: "[E]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.160217733e-18
    :unit_code: C
  :classification: const
  :property: electric charge
  :metric: true
  :special: false
  :arbitrary: false
- :names: electron mass
  :symbol: "<i>m<sub><r>e</r></sub></i>"
  :primary_code: "[m_e]"
  :secondary_code: "[M_E]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.91093897e-27
    :unit_code: g
  :classification: const
  :property: mass
  :metric: true
  :special: false
  :arbitrary: false
- :names: proton mass
  :symbol: "<i>m<sub><r>p</r></sub></i>"
  :primary_code: "[m_p]"
  :secondary_code: "[M_P]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.16726231e-23
    :unit_code: g
  :classification: const
  :property: mass
  :metric: true
  :special: false
  :arbitrary: false
- :names: Newtonian constant of gravitation
  :symbol: "<i>G</i>"
  :primary_code: "[G]"
  :secondary_code: "[GC]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.667259e-10
    :unit_code: m3.kg-1.s-2
  :classification: const
  :property: "(unclassified)"
  :metric: true
  :special: false
  :arbitrary: false
- :names: standard acceleration of free fall
  :symbol: "<i>g<sub>n</sub></i>"
  :primary_code: "[g]"
  :secondary_code: "[G]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.980665e1
    :unit_code: m/s2
  :classification: const
  :property: acceleration
  :metric: true
  :special: false
  :arbitrary: false
- :names: standard atmosphere
  :symbol: atm
  :primary_code: atm
  :secondary_code: ATM
  :scale:
    :value: 101325
    :unit_code: Pa
  :classification: const
  :property: pressure
  :metric: false
  :special: false
  :arbitrary: false
- :names: light-year
  :symbol: l.y.
  :primary_code: "[ly]"
  :secondary_code: "[LY]"
  :scale:
    :value: 1
    :unit_code: "[c].a_j"
  :classification: const
  :property: length
  :metric: true
  :special: false
  :arbitrary: false
- :names: gram-force
  :symbol: gf
  :primary_code: gf
  :secondary_code: GF
  :scale:
    :value: 1
    :unit_code: g.[g]
  :classification: const
  :property: force
  :metric: true
  :special: false
  :arbitrary: false
- :names: pound force
  :symbol: lbf
  :primary_code: "[lbf_av]"
  :secondary_code: "[LBF_AV]"
  :scale:
    :value: 1
    :unit_code: "[lb_av].[g]"
  :classification: const
  :property: force
  :metric: false
  :special: false
  :arbitrary: false
- :names: Kayser
  :symbol: K
  :primary_code: Ky
  :secondary_code: KY
  :scale:
    :value: 1
    :unit_code: cm-1
  :classification: cgs
  :property: lineic number
  :metric: true
  :special: false
  :arbitrary: false
- :names: Gal
  :symbol: Gal
  :primary_code: Gal
  :secondary_code: GL
  :scale:
    :value: 1
    :unit_code: cm/s2
  :classification: cgs
  :property: acceleration
  :metric: true
  :special: false
  :arbitrary: false
- :names: dyne
  :symbol: dyn
  :primary_code: dyn
  :secondary_code: DYN
  :scale:
    :value: 1
    :unit_code: g.cm/s2
  :classification: cgs
  :property: force
  :metric: true
  :special: false
  :arbitrary: false
- :names: erg
  :symbol: erg
  :primary_code: erg
  :secondary_code: ERG
  :scale:
    :value: 1
    :unit_code: dyn.cm
  :classification: cgs
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: Poise
  :symbol: P
  :primary_code: P
  :secondary_code: P
  :scale:
    :value: 1
    :unit_code: dyn.s/cm2
  :classification: cgs
  :property: dynamic viscosity
  :metric: true
  :special: false
  :arbitrary: false
- :names: Biot
  :symbol: Bi
  :primary_code: Bi
  :secondary_code: BI
  :scale:
    :value: 10
    :unit_code: A
  :classification: cgs
  :property: electric current
  :metric: true
  :special: false
  :arbitrary: false
- :names: Stokes
  :symbol: St
  :primary_code: St
  :secondary_code: ST
  :scale:
    :value: 1
    :unit_code: cm2/s
  :classification: cgs
  :property: kinematic viscosity
  :metric: true
  :special: false
  :arbitrary: false
- :names: Maxwell
  :symbol: Mx
  :primary_code: Mx
  :secondary_code: MX
  :scale:
    :value: !ruby/object:BigDecimal 18:0.1e-7
    :unit_code: Wb
  :classification: cgs
  :property: flux of magnetic induction
  :metric: true
  :special: false
  :arbitrary: false
- :names: Gauss
  :symbol: Gs
  :primary_code: G
  :secondary_code: GS
  :scale:
    :value: !ruby/object:BigDecimal 18:0.1e-3
    :unit_code: T
  :classification: cgs
  :property: magnetic flux density
  :metric: true
  :special: false
  :arbitrary: false
- :names: Oersted
  :symbol: Oe
  :primary_code: Oe
  :secondary_code: OE
  :scale:
    :value: 250
    :unit_code: "/[pi].A/m"
  :classification: cgs
  :property: magnetic field intensity
  :metric: true
  :special: false
  :arbitrary: false
- :names: Gilbert
  :symbol: Gb
  :primary_code: Gb
  :secondary_code: GB
  :scale:
    :value: 1
    :unit_code: Oe.cm
  :classification: cgs
  :property: magnetic tension
  :metric: true
  :special: false
  :arbitrary: false
- :names: stilb
  :symbol: sb
  :primary_code: sb
  :secondary_code: SB
  :scale:
    :value: 1
    :unit_code: cd/cm2
  :classification: cgs
  :property: lum. intensity density
  :metric: true
  :special: false
  :arbitrary: false
- :names: Lambert
  :symbol: L
  :primary_code: Lmb
  :secondary_code: LMB
  :scale:
    :value: 1
    :unit_code: cd/cm2/[pi]
  :classification: cgs
  :property: brightness
  :metric: true
  :special: false
  :arbitrary: false
- :names: phot
  :symbol: ph
  :primary_code: ph
  :secondary_code: PHT
  :scale:
    :value: !ruby/object:BigDecimal 18:0.1e-3
    :unit_code: lx
  :classification: cgs
  :property: illuminance
  :metric: true
  :special: false
  :arbitrary: false
- :names: Curie
  :symbol: Ci
  :primary_code: Ci
  :secondary_code: CI
  :scale:
    :value: 37000000000
    :unit_code: Bq
  :classification: cgs
  :property: radioactivity
  :metric: true
  :special: false
  :arbitrary: false
- :names: Roentgen
  :symbol: R
  :primary_code: R
  :secondary_code: ROE
  :scale:
    :value: !ruby/object:BigDecimal 18:0.258e-3
    :unit_code: C/kg
  :classification: cgs
  :property: ion dose
  :metric: true
  :special: false
  :arbitrary: false
- :names: radiation absorbed dose
  :symbol: RAD
  :primary_code: RAD
  :secondary_code: "[RAD]"
  :scale:
    :value: 100
    :unit_code: erg/g
  :classification: cgs
  :property: energy dose
  :metric: true
  :special: false
  :arbitrary: false
- :names: radiation equivalent man
  :symbol: REM
  :primary_code: REM
  :secondary_code: "[REM]"
  :scale:
    :value: 1
    :unit_code: RAD
  :classification: cgs
  :property: dose equivalent
  :metric: true
  :special: false
  :arbitrary: false
- :names: inch
  :symbol: in
  :primary_code: "[in_i]"
  :secondary_code: "[IN_I]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.254e1
    :unit_code: cm
  :classification: intcust
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: foot
  :symbol: ft
  :primary_code: "[ft_i]"
  :secondary_code: "[FT_I]"
  :scale:
    :value: 12
    :unit_code: "[in_i]"
  :classification: intcust
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: yard
  :symbol: yd
  :primary_code: "[yd_i]"
  :secondary_code: "[YD_I]"
  :scale:
    :value: 3
    :unit_code: "[ft_i]"
  :classification: intcust
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: mile
  :symbol: mi
  :primary_code: "[mi_i]"
  :secondary_code: "[MI_I]"
  :scale:
    :value: 5280
    :unit_code: "[ft_i]"
  :classification: intcust
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: fathom
  :symbol: fth
  :primary_code: "[fth_i]"
  :secondary_code: "[FTH_I]"
  :scale:
    :value: 6
    :unit_code: "[ft_i]"
  :classification: intcust
  :property: depth of water
  :metric: false
  :special: false
  :arbitrary: false
- :names: nautical mile
  :symbol: n.mi
  :primary_code: "[nmi_i]"
  :secondary_code: "[NMI_I]"
  :scale:
    :value: 1852
    :unit_code: m
  :classification: intcust
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: knot
  :symbol: knot
  :primary_code: "[kn_i]"
  :secondary_code: "[KN_I]"
  :scale:
    :value: 1
    :unit_code: "[nmi_i]/h"
  :classification: intcust
  :property: velocity
  :metric: false
  :special: false
  :arbitrary: false
- :names: square inch
  :primary_code: "[sin_i]"
  :secondary_code: "[SIN_I]"
  :scale:
    :value: 1
    :unit_code: "[in_i]2"
  :classification: intcust
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: square foot
  :primary_code: "[sft_i]"
  :secondary_code: "[SFT_I]"
  :scale:
    :value: 1
    :unit_code: "[ft_i]2"
  :classification: intcust
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: square yard
  :primary_code: "[syd_i]"
  :secondary_code: "[SYD_I]"
  :scale:
    :value: 1
    :unit_code: "[yd_i]2"
  :classification: intcust
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: cubic inch
  :primary_code: "[cin_i]"
  :secondary_code: "[CIN_I]"
  :scale:
    :value: 1
    :unit_code: "[in_i]3"
  :classification: intcust
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: cubic foot
  :primary_code: "[cft_i]"
  :secondary_code: "[CFT_I]"
  :scale:
    :value: 1
    :unit_code: "[ft_i]3"
  :classification: intcust
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: cubic yard
  :symbol: cu.yd
  :primary_code: "[cyd_i]"
  :secondary_code: "[CYD_I]"
  :scale:
    :value: 1
    :unit_code: "[yd_i]3"
  :classification: intcust
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: board foot
  :primary_code: "[bf_i]"
  :secondary_code: "[BF_I]"
  :scale:
    :value: 144
    :unit_code: "[in_i]3"
  :classification: intcust
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: cord
  :primary_code: "[cr_i]"
  :secondary_code: "[CR_I]"
  :scale:
    :value: 128
    :unit_code: "[ft_i]3"
  :classification: intcust
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: mil
  :symbol: mil
  :primary_code: "[mil_i]"
  :secondary_code: "[MIL_I]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.1e-2
    :unit_code: "[in_i]"
  :classification: intcust
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: circular mil
  :symbol: circ.mil
  :primary_code: "[cml_i]"
  :secondary_code: "[CML_I]"
  :scale:
    :value: 1
    :unit_code: "[pi]/4.[mil_i]2"
  :classification: intcust
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: hand
  :symbol: hd
  :primary_code: "[hd_i]"
  :secondary_code: "[HD_I]"
  :scale:
    :value: 4
    :unit_code: "[in_i]"
  :classification: intcust
  :property: height of horses
  :metric: false
  :special: false
  :arbitrary: false
- :names: foot
  :symbol: ft<sub>us</sub>
  :primary_code: "[ft_us]"
  :secondary_code: "[FT_US]"
  :scale:
    :value: 1200
    :unit_code: m/3937
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: yard
  :primary_code: "[yd_us]"
  :secondary_code: "[YD_US]"
  :scale:
    :value: 3
    :unit_code: "[ft_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: inch
  :primary_code: "[in_us]"
  :secondary_code: "[IN_US]"
  :scale:
    :value: 1
    :unit_code: "[ft_us]/12"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: rod
  :primary_code: "[rd_us]"
  :secondary_code: "[RD_US]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.165e2
    :unit_code: "[ft_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - Gunter's chain
  - Surveyor's chain
  :primary_code: "[ch_us]"
  :secondary_code: "[CH_US]"
  :scale:
    :value: 4
    :unit_code: "[rd_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: link for Gunter's chain
  :primary_code: "[lk_us]"
  :secondary_code: "[LK_US]"
  :scale:
    :value: 1
    :unit_code: "[ch_us]/100"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - Ramden's chain
  - Engineer's chain
  :primary_code: "[rch_us]"
  :secondary_code: "[RCH_US]"
  :scale:
    :value: 100
    :unit_code: "[ft_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: link for Ramden's chain
  :primary_code: "[rlk_us]"
  :secondary_code: "[RLK_US]"
  :scale:
    :value: 1
    :unit_code: "[rch_us]/100"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: fathom
  :primary_code: "[fth_us]"
  :secondary_code: "[FTH_US]"
  :scale:
    :value: 6
    :unit_code: "[ft_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: furlong
  :primary_code: "[fur_us]"
  :secondary_code: "[FUR_US]"
  :scale:
    :value: 40
    :unit_code: "[rd_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: mile
  :primary_code: "[mi_us]"
  :secondary_code: "[MI_US]"
  :scale:
    :value: 8
    :unit_code: "[fur_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: acre
  :primary_code: "[acr_us]"
  :secondary_code: "[ACR_US]"
  :scale:
    :value: 160
    :unit_code: "[rd_us]2"
  :classification: us-lengths
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: square rod
  :primary_code: "[srd_us]"
  :secondary_code: "[SRD_US]"
  :scale:
    :value: 1
    :unit_code: "[rd_us]2"
  :classification: us-lengths
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: square mile
  :primary_code: "[smi_us]"
  :secondary_code: "[SMI_US]"
  :scale:
    :value: 1
    :unit_code: "[mi_us]2"
  :classification: us-lengths
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: section
  :primary_code: "[sct]"
  :secondary_code: "[SCT]"
  :scale:
    :value: 1
    :unit_code: "[mi_us]2"
  :classification: us-lengths
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: township
  :primary_code: "[twp]"
  :secondary_code: "[TWP]"
  :scale:
    :value: 36
    :unit_code: "[sct]"
  :classification: us-lengths
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: mil
  :primary_code: "[mil_us]"
  :secondary_code: "[MIL_US]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.1e-2
    :unit_code: "[in_us]"
  :classification: us-lengths
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: inch
  :primary_code: "[in_br]"
  :secondary_code: "[IN_BR]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.2539998e1
    :unit_code: cm
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: foot
  :primary_code: "[ft_br]"
  :secondary_code: "[FT_BR]"
  :scale:
    :value: 12
    :unit_code: "[in_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: rod
  :primary_code: "[rd_br]"
  :secondary_code: "[RD_BR]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.165e2
    :unit_code: "[ft_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: Gunter's chain
  :primary_code: "[ch_br]"
  :secondary_code: "[CH_BR]"
  :scale:
    :value: 4
    :unit_code: "[rd_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: link for Gunter's chain
  :primary_code: "[lk_br]"
  :secondary_code: "[LK_BR]"
  :scale:
    :value: 1
    :unit_code: "[ch_br]/100"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: fathom
  :primary_code: "[fth_br]"
  :secondary_code: "[FTH_BR]"
  :scale:
    :value: 6
    :unit_code: "[ft_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: pace
  :primary_code: "[pc_br]"
  :secondary_code: "[PC_BR]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.25e1
    :unit_code: "[ft_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: yard
  :primary_code: "[yd_br]"
  :secondary_code: "[YD_BR]"
  :scale:
    :value: 3
    :unit_code: "[ft_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: mile
  :primary_code: "[mi_br]"
  :secondary_code: "[MI_BR]"
  :scale:
    :value: 5280
    :unit_code: "[ft_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: nautical mile
  :primary_code: "[nmi_br]"
  :secondary_code: "[NMI_BR]"
  :scale:
    :value: 6080
    :unit_code: "[ft_br]"
  :classification: brit-length
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: knot
  :primary_code: "[kn_br]"
  :secondary_code: "[KN_BR]"
  :scale:
    :value: 1
    :unit_code: "[nmi_br]/h"
  :classification: brit-length
  :property: velocity
  :metric: false
  :special: false
  :arbitrary: false
- :names: acre
  :primary_code: "[acr_br]"
  :secondary_code: "[ACR_BR]"
  :scale:
    :value: 4840
    :unit_code: "[yd_br]2"
  :classification: brit-length
  :property: area
  :metric: false
  :special: false
  :arbitrary: false
- :names: Queen Anne's wine gallon
  :primary_code: "[gal_us]"
  :secondary_code: "[GAL_US]"
  :scale:
    :value: 231
    :unit_code: "[in_i]3"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: barrel
  :primary_code: "[bbl_us]"
  :secondary_code: "[BBL_US]"
  :scale:
    :value: 42
    :unit_code: "[gal_us]"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: quart
  :primary_code: "[qt_us]"
  :secondary_code: "[QT_US]"
  :scale:
    :value: 1
    :unit_code: "[gal_us]/4"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: pint
  :primary_code: "[pt_us]"
  :secondary_code: "[PT_US]"
  :scale:
    :value: 1
    :unit_code: "[qt_us]/2"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: gill
  :primary_code: "[gil_us]"
  :secondary_code: "[GIL_US]"
  :scale:
    :value: 1
    :unit_code: "[pt_us]/4"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: fluid ounce
  :symbol: oz fl
  :primary_code: "[foz_us]"
  :secondary_code: "[FOZ_US]"
  :scale:
    :value: 1
    :unit_code: "[gil_us]/4"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: fluid dram
  :primary_code: "[fdr_us]"
  :secondary_code: "[FDR_US]"
  :scale:
    :value: 1
    :unit_code: "[foz_us]/8"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: minim
  :primary_code: "[min_us]"
  :secondary_code: "[MIN_US]"
  :scale:
    :value: 1
    :unit_code: "[fdr_us]/60"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: cord
  :primary_code: "[crd_us]"
  :secondary_code: "[CRD_US]"
  :scale:
    :value: 128
    :unit_code: "[ft_i]3"
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: bushel
  :primary_code: "[bu_us]"
  :secondary_code: "[BU_US]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.215042e4
    :unit_code: "[in_i]3"
  :classification: us-volumes
  :property: dry volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: historical winchester gallon
  :primary_code: "[gal_wi]"
  :secondary_code: "[GAL_WI]"
  :scale:
    :value: 1
    :unit_code: "[bu_us]/8"
  :classification: us-volumes
  :property: dry volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: peck
  :primary_code: "[pk_us]"
  :secondary_code: "[PK_US]"
  :scale:
    :value: 1
    :unit_code: "[bu_us]/4"
  :classification: us-volumes
  :property: dry volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: dry quart
  :primary_code: "[dqt_us]"
  :secondary_code: "[DQT_US]"
  :scale:
    :value: 1
    :unit_code: "[pk_us]/8"
  :classification: us-volumes
  :property: dry volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: dry pint
  :primary_code: "[dpt_us]"
  :secondary_code: "[DPT_US]"
  :scale:
    :value: 1
    :unit_code: "[dqt_us]/2"
  :classification: us-volumes
  :property: dry volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: tablespoon
  :primary_code: "[tbs_us]"
  :secondary_code: "[TBS_US]"
  :scale:
    :value: 1
    :unit_code: "[foz_us]/2"
  :classification: us-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: teaspoon
  :primary_code: "[tsp_us]"
  :secondary_code: "[TSP_US]"
  :scale:
    :value: 1
    :unit_code: "[tbs_us]/3"
  :classification: us-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: cup
  :primary_code: "[cup_us]"
  :secondary_code: "[CUP_US]"
  :scale:
    :value: 16
    :unit_code: "[tbs_us]"
  :classification: us-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: metric fluid ounce
  :symbol: oz fl
  :primary_code: "[foz_m]"
  :secondary_code: "[FOZ_M]"
  :scale:
    :value: 30
    :unit_code: mL
  :classification: us-volumes
  :property: fluid volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: metric cup
  :primary_code: "[cup_m]"
  :secondary_code: "[CUP_M]"
  :scale:
    :value: 240
    :unit_code: mL
  :classification: us-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: metric teaspoon
  :primary_code: "[tsp_m]"
  :secondary_code: "[TSP_M]"
  :scale:
    :value: 5
    :unit_code: mL
  :classification: us-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: metric tablespoon
  :primary_code: "[tbs_m]"
  :secondary_code: "[TBS_M]"
  :scale:
    :value: 15
    :unit_code: mL
  :classification: us-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: gallon
  :primary_code: "[gal_br]"
  :secondary_code: "[GAL_BR]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.454609e1
    :unit_code: l
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: peck
  :primary_code: "[pk_br]"
  :secondary_code: "[PK_BR]"
  :scale:
    :value: 2
    :unit_code: "[gal_br]"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: bushel
  :primary_code: "[bu_br]"
  :secondary_code: "[BU_BR]"
  :scale:
    :value: 4
    :unit_code: "[pk_br]"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: quart
  :primary_code: "[qt_br]"
  :secondary_code: "[QT_BR]"
  :scale:
    :value: 1
    :unit_code: "[gal_br]/4"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: pint
  :primary_code: "[pt_br]"
  :secondary_code: "[PT_BR]"
  :scale:
    :value: 1
    :unit_code: "[qt_br]/2"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: gill
  :primary_code: "[gil_br]"
  :secondary_code: "[GIL_BR]"
  :scale:
    :value: 1
    :unit_code: "[pt_br]/4"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: fluid ounce
  :primary_code: "[foz_br]"
  :secondary_code: "[FOZ_BR]"
  :scale:
    :value: 1
    :unit_code: "[gil_br]/5"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: fluid dram
  :primary_code: "[fdr_br]"
  :secondary_code: "[FDR_BR]"
  :scale:
    :value: 1
    :unit_code: "[foz_br]/8"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: minim
  :primary_code: "[min_br]"
  :secondary_code: "[MIN_BR]"
  :scale:
    :value: 1
    :unit_code: "[fdr_br]/60"
  :classification: brit-volumes
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: grain
  :primary_code: "[gr]"
  :secondary_code: "[GR]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.6479891e2
    :unit_code: mg
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: pound
  :symbol: lb
  :primary_code: "[lb_av]"
  :secondary_code: "[LB_AV]"
  :scale:
    :value: 7000
    :unit_code: "[gr]"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: ounce
  :symbol: oz
  :primary_code: "[oz_av]"
  :secondary_code: "[OZ_AV]"
  :scale:
    :value: 1
    :unit_code: "[lb_av]/16"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: dram
  :primary_code: "[dr_av]"
  :secondary_code: "[DR_AV]"
  :scale:
    :value: 1
    :unit_code: "[oz_av]/16"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - short hundredweight
  - U.S. hundredweight
  :primary_code: "[scwt_av]"
  :secondary_code: "[SCWT_AV]"
  :scale:
    :value: 100
    :unit_code: "[lb_av]"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - long hunderdweight
  - British hundredweight
  :primary_code: "[lcwt_av]"
  :secondary_code: "[LCWT_AV]"
  :scale:
    :value: 112
    :unit_code: "[lb_av]"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - short ton
  - U.S. ton
  :primary_code: "[ston_av]"
  :secondary_code: "[STON_AV]"
  :scale:
    :value: 20
    :unit_code: "[scwt_av]"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - long ton
  - British ton
  :primary_code: "[lton_av]"
  :secondary_code: "[LTON_AV]"
  :scale:
    :value: 20
    :unit_code: "[lcwt_av]"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - stone
  - British stone
  :primary_code: "[stone_av]"
  :secondary_code: "[STONE_AV]"
  :scale:
    :value: 14
    :unit_code: "[lb_av]"
  :classification: avoirdupois
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: pennyweight
  :primary_code: "[pwt_tr]"
  :secondary_code: "[PWT_TR]"
  :scale:
    :value: 24
    :unit_code: "[gr]"
  :classification: troy
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: ounce
  :primary_code: "[oz_tr]"
  :secondary_code: "[OZ_TR]"
  :scale:
    :value: 20
    :unit_code: "[pwt_tr]"
  :classification: troy
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: pound
  :primary_code: "[lb_tr]"
  :secondary_code: "[LB_TR]"
  :scale:
    :value: 12
    :unit_code: "[oz_tr]"
  :classification: troy
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: scruple
  :primary_code: "[sc_ap]"
  :secondary_code: "[SC_AP]"
  :scale:
    :value: 20
    :unit_code: "[gr]"
  :classification: apoth
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - dram
  - drachm
  :primary_code: "[dr_ap]"
  :secondary_code: "[DR_AP]"
  :scale:
    :value: 3
    :unit_code: "[sc_ap]"
  :classification: apoth
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: ounce
  :primary_code: "[oz_ap]"
  :secondary_code: "[OZ_AP]"
  :scale:
    :value: 8
    :unit_code: "[dr_ap]"
  :classification: apoth
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: pound
  :primary_code: "[lb_ap]"
  :secondary_code: "[LB_AP]"
  :scale:
    :value: 12
    :unit_code: "[oz_ap]"
  :classification: apoth
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: metric ounce
  :primary_code: "[oz_m]"
  :secondary_code: "[OZ_M]"
  :scale:
    :value: 28
    :unit_code: g
  :classification: apoth
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: line
  :primary_code: "[lne]"
  :secondary_code: "[LNE]"
  :scale:
    :value: 1
    :unit_code: "[in_i]/12"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: point
  :primary_code: "[pnt]"
  :secondary_code: "[PNT]"
  :scale:
    :value: 1
    :unit_code: "[lne]/6"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: pica
  :primary_code: "[pca]"
  :secondary_code: "[PCA]"
  :scale:
    :value: 12
    :unit_code: "[pnt]"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: Printer's point
  :primary_code: "[pnt_pr]"
  :secondary_code: "[PNT_PR]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.13837e-1
    :unit_code: "[in_i]"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: Printer's pica
  :primary_code: "[pca_pr]"
  :secondary_code: "[PCA_PR]"
  :scale:
    :value: 12
    :unit_code: "[pnt_pr]"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - pied
  - French foot
  :primary_code: "[pied]"
  :secondary_code: "[PIED]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.3248e2
    :unit_code: cm
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - pouce
  - French inch
  :primary_code: "[pouce]"
  :secondary_code: "[POUCE]"
  :scale:
    :value: 1
    :unit_code: "[pied]/12"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - ligne
  - French line
  :primary_code: "[ligne]"
  :secondary_code: "[LIGNE]"
  :scale:
    :value: 1
    :unit_code: "[pouce]/12"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - didot
  - Didot's point
  :primary_code: "[didot]"
  :secondary_code: "[DIDOT]"
  :scale:
    :value: 1
    :unit_code: "[ligne]/6"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - cicero
  - Didot's pica
  :primary_code: "[cicero]"
  :secondary_code: "[CICERO]"
  :scale:
    :value: 12
    :unit_code: "[didot]"
  :classification: typeset
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: degree Fahrenheit
  :symbol: "°F"
  :primary_code: "[degF]"
  :secondary_code: "[DEGF]"
  :scale:
    :function_code: degf
    :value: 5
    :unit_code: K/9
  :classification: heat
  :property: temperature
  :metric: false
  :special: true
  :arbitrary: false
- :names: degree Rankine
  :symbol: "°R"
  :primary_code: "[degR]"
  :secondary_code: "[degR]"
  :scale:
    :value: 5
    :unit_code: K/9
  :classification: heat
  :property: temperature
  :metric: false
  :special: false
  :arbitrary: false
- :names: degree Réaumur
  :symbol: "°Ré"
  :primary_code: "[degRe]"
  :secondary_code: "[degRe]"
  :scale:
    :function_code: degre
    :value: 5
    :unit_code: K/4
  :classification: heat
  :property: temperature
  :metric: false
  :special: true
  :arbitrary: false
- :names: calorie at 15 °C
  :symbol: cal<sub>15°C</sub>
  :primary_code: cal_[15]
  :secondary_code: CAL_[15]
  :scale:
    :value: !ruby/object:BigDecimal 18:0.41858e1
    :unit_code: J
  :classification: heat
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: calorie at 20 °C
  :symbol: cal<sub>20°C</sub>
  :primary_code: cal_[20]
  :secondary_code: CAL_[20]
  :scale:
    :value: !ruby/object:BigDecimal 18:0.41819e1
    :unit_code: J
  :classification: heat
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: mean calorie
  :symbol: cal<sub>m</sub>
  :primary_code: cal_m
  :secondary_code: CAL_M
  :scale:
    :value: !ruby/object:BigDecimal 18:0.419002e1
    :unit_code: J
  :classification: heat
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: international table calorie
  :symbol: cal<sub>IT</sub>
  :primary_code: cal_IT
  :secondary_code: CAL_IT
  :scale:
    :value: !ruby/object:BigDecimal 18:0.41868e1
    :unit_code: J
  :classification: heat
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: thermochemical calorie
  :symbol: cal<sub>th</sub>
  :primary_code: cal_th
  :secondary_code: CAL_TH
  :scale:
    :value: !ruby/object:BigDecimal 18:0.4184e1
    :unit_code: J
  :classification: heat
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: calorie
  :symbol: cal
  :primary_code: cal
  :secondary_code: CAL
  :scale:
    :value: 1
    :unit_code: cal_th
  :classification: heat
  :property: energy
  :metric: true
  :special: false
  :arbitrary: false
- :names: nutrition label Calories
  :symbol: Cal
  :primary_code: "[Cal]"
  :secondary_code: "[CAL]"
  :scale:
    :value: 1
    :unit_code: kcal_th
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: British thermal unit at 39 °F
  :symbol: Btu<sub>39°F</sub>
  :primary_code: "[Btu_39]"
  :secondary_code: "[BTU_39]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.105967e1
    :unit_code: kJ
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: British thermal unit at 59 °F
  :symbol: Btu<sub>59°F</sub>
  :primary_code: "[Btu_59]"
  :secondary_code: "[BTU_59]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.10548e1
    :unit_code: kJ
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: British thermal unit at 60 °F
  :symbol: Btu<sub>60°F</sub>
  :primary_code: "[Btu_60]"
  :secondary_code: "[BTU_60]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.105468e1
    :unit_code: kJ
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: mean British thermal unit
  :symbol: Btu<sub>m</sub>
  :primary_code: "[Btu_m]"
  :secondary_code: "[BTU_M]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.105587e1
    :unit_code: kJ
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: international table British thermal unit
  :symbol: Btu<sub>IT</sub>
  :primary_code: "[Btu_IT]"
  :secondary_code: "[BTU_IT]"
  :scale:
    :value: !ruby/object:BigDecimal 27:0.105505585262e1
    :unit_code: kJ
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: thermochemical British thermal unit
  :symbol: Btu<sub>th</sub>
  :primary_code: "[Btu_th]"
  :secondary_code: "[BTU_TH]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.105435e1
    :unit_code: kJ
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: British thermal unit
  :symbol: btu
  :primary_code: "[Btu]"
  :secondary_code: "[BTU]"
  :scale:
    :value: 1
    :unit_code: "[Btu_th]"
  :classification: heat
  :property: energy
  :metric: false
  :special: false
  :arbitrary: false
- :names: horsepower
  :primary_code: "[HP]"
  :secondary_code: "[HP]"
  :scale:
    :value: 550
    :unit_code: "[ft_i].[lbf_av]/s"
  :classification: heat
  :property: power
  :metric: false
  :special: false
  :arbitrary: false
- :names: tex
  :symbol: tex
  :primary_code: tex
  :secondary_code: TEX
  :scale:
    :value: 1
    :unit_code: g/km
  :classification: heat
  :property: linear mass density (of textile thread)
  :metric: true
  :special: false
  :arbitrary: false
- :names: Denier
  :symbol: den
  :primary_code: "[den]"
  :secondary_code: "[DEN]"
  :scale:
    :value: 1
    :unit_code: g/9/km
  :classification: heat
  :property: linear mass density (of textile thread)
  :metric: false
  :special: false
  :arbitrary: false
- :names: meter of water column
  :symbol: m H<sub><r>2</r></sub>O
  :primary_code: m[H2O]
  :secondary_code: M[H2O]
  :scale:
    :value: !ruby/object:BigDecimal 18:0.980665e1
    :unit_code: kPa
  :classification: clinical
  :property: pressure
  :metric: true
  :special: false
  :arbitrary: false
- :names: meter of mercury column
  :symbol: m Hg
  :primary_code: m[Hg]
  :secondary_code: M[HG]
  :scale:
    :value: !ruby/object:BigDecimal 18:0.133322e3
    :unit_code: kPa
  :classification: clinical
  :property: pressure
  :metric: true
  :special: false
  :arbitrary: false
- :names: inch of water column
  :symbol: in H<sub><r>2</r></sub>O
  :primary_code: "[in_i'H2O]"
  :secondary_code: "[IN_I'H2O]"
  :scale:
    :value: 1
    :unit_code: m[H2O].[in_i]/m
  :classification: clinical
  :property: pressure
  :metric: false
  :special: false
  :arbitrary: false
- :names: inch of mercury column
  :symbol: in Hg
  :primary_code: "[in_i'Hg]"
  :secondary_code: "[IN_I'HG]"
  :scale:
    :value: 1
    :unit_code: m[Hg].[in_i]/m
  :classification: clinical
  :property: pressure
  :metric: false
  :special: false
  :arbitrary: false
- :names: peripheral vascular resistance unit
  :symbol: P.R.U.
  :primary_code: "[PRU]"
  :secondary_code: "[PRU]"
  :scale:
    :value: 1
    :unit_code: mm[Hg].s/ml
  :classification: clinical
  :property: fluid resistance
  :metric: false
  :special: false
  :arbitrary: false
- :names: Wood unit
  :symbol: Wood U.
  :primary_code: "[wood'U]"
  :secondary_code: "[WOOD'U]"
  :scale:
    :value: 1
    :unit_code: mm[Hg].min/L
  :classification: clinical
  :property: fluid resistance
  :metric: false
  :special: false
  :arbitrary: false
- :names: diopter
  :symbol: dpt
  :primary_code: "[diop]"
  :secondary_code: "[DIOP]"
  :scale:
    :value: 1
    :unit_code: "/m"
  :classification: clinical
  :property: refraction of a lens
  :metric: false
  :special: false
  :arbitrary: false
- :names: prism diopter
  :symbol: PD
  :primary_code: "[p'diop]"
  :secondary_code: "[P'DIOP]"
  :scale:
    :function_code: 100tan
    :value: 1
    :unit_code: deg
  :classification: clinical
  :property: refraction of a prism
  :metric: false
  :special: true
  :arbitrary: false
- :names: percent of slope
  :symbol: "%"
  :primary_code: "%[slope]"
  :secondary_code: "%[SLOPE]"
  :scale:
    :function_code: 100tan
    :value: 1
    :unit_code: deg
  :classification: clinical
  :property: slope
  :metric: false
  :special: true
  :arbitrary: false
- :names: mesh
  :primary_code: "[mesh_i]"
  :secondary_code: "[MESH_I]"
  :scale:
    :value: 1
    :unit_code: "/[in_i]"
  :classification: clinical
  :property: lineic number
  :metric: false
  :special: false
  :arbitrary: false
- :names:
  - Charrière
  - french
  :symbol: Ch
  :primary_code: "[Ch]"
  :secondary_code: "[CH]"
  :scale:
    :value: 1
    :unit_code: mm/3
  :classification: clinical
  :property: gauge of catheters
  :metric: false
  :special: false
  :arbitrary: false
- :names: drop
  :symbol: drp
  :primary_code: "[drp]"
  :secondary_code: "[DRP]"
  :scale:
    :value: 1
    :unit_code: ml/20
  :classification: clinical
  :property: volume
  :metric: false
  :special: false
  :arbitrary: false
- :names: Hounsfield unit
  :symbol: HF
  :primary_code: "[hnsf'U]"
  :secondary_code: "[HNSF'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: x-ray attenuation
  :metric: false
  :special: false
  :arbitrary: false
- :names: metabolic equivalent
  :symbol: MET
  :primary_code: "[MET]"
  :secondary_code: "[MET]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.35e1
    :unit_code: mL/min/kg
  :classification: clinical
  :property: metabolic cost of physical activity
  :metric: false
  :special: false
  :arbitrary: false
- :names: homeopathic potency of decimal series (retired)
  :symbol: X
  :primary_code: "[hp'_X]"
  :secondary_code: "[HP'_X]"
  :scale:
    :function_code: hpX
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (retired)
  :metric: false
  :special: true
  :arbitrary: false
- :names: homeopathic potency of centesimal series (retired)
  :symbol: C
  :primary_code: "[hp'_C]"
  :secondary_code: "[HP'_C]"
  :scale:
    :function_code: hpC
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (retired)
  :metric: false
  :special: true
  :arbitrary: false
- :names: homeopathic potency of millesimal series (retired)
  :symbol: M
  :primary_code: "[hp'_M]"
  :secondary_code: "[HP'_M]"
  :scale:
    :function_code: hpM
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (retired)
  :metric: false
  :special: true
  :arbitrary: false
- :names: homeopathic potency of quintamillesimal series (retired)
  :symbol: Q
  :primary_code: "[hp'_Q]"
  :secondary_code: "[HP'_Q]"
  :scale:
    :function_code: hpQ
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (retired)
  :metric: false
  :special: true
  :arbitrary: false
- :names: homeopathic potency of decimal hahnemannian series
  :symbol: X
  :primary_code: "[hp_X]"
  :secondary_code: "[HP_X]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Hahnemann)
  :metric: false
  :special: false
  :arbitrary: true
- :names: homeopathic potency of centesimal hahnemannian series
  :symbol: C
  :primary_code: "[hp_C]"
  :secondary_code: "[HP_C]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Hahnemann)
  :metric: false
  :special: false
  :arbitrary: true
- :names: homeopathic potency of millesimal hahnemannian series
  :symbol: M
  :primary_code: "[hp_M]"
  :secondary_code: "[HP_M]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Hahnemann)
  :metric: false
  :special: false
  :arbitrary: true
- :names: homeopathic potency of quintamillesimal hahnemannian series
  :symbol: Q
  :primary_code: "[hp_Q]"
  :secondary_code: "[HP_Q]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Hahnemann)
  :metric: false
  :special: false
  :arbitrary: true
- :names: homeopathic potency of decimal korsakovian series
  :symbol: X
  :primary_code: "[kp_X]"
  :secondary_code: "[KP_X]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Korsakov)
  :metric: false
  :special: false
  :arbitrary: true
- :names: homeopathic potency of centesimal korsakovian series
  :symbol: C
  :primary_code: "[kp_C]"
  :secondary_code: "[KP_C]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Korsakov)
  :metric: false
  :special: false
  :arbitrary: true
- :names: homeopathic potency of millesimal korsakovian series
  :symbol: M
  :primary_code: "[kp_M]"
  :secondary_code: "[KP_M]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Korsakov)
  :metric: false
  :special: false
  :arbitrary: true
- :names: homeopathic potency of quintamillesimal korsakovian series
  :symbol: Q
  :primary_code: "[kp_Q]"
  :secondary_code: "[KP_Q]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: clinical
  :property: homeopathic potency (Korsakov)
  :metric: false
  :special: false
  :arbitrary: true
- :names: equivalents
  :symbol: eq
  :primary_code: eq
  :secondary_code: EQ
  :scale:
    :value: 1
    :unit_code: mol
  :classification: chemical
  :property: amount of substance
  :metric: true
  :special: false
  :arbitrary: false
- :names: osmole
  :symbol: osm
  :primary_code: osm
  :secondary_code: OSM
  :scale:
    :value: 1
    :unit_code: mol
  :classification: chemical
  :property: amount of substance (dissolved particles)
  :metric: true
  :special: false
  :arbitrary: false
- :names: pH
  :symbol: pH
  :primary_code: "[pH]"
  :secondary_code: "[PH]"
  :scale:
    :function_code: pH
    :value: 1
    :unit_code: mol/l
  :classification: chemical
  :property: acidity
  :metric: false
  :special: true
  :arbitrary: false
- :names: gram percent
  :symbol: g%
  :primary_code: g%
  :secondary_code: G%
  :scale:
    :value: 1
    :unit_code: g/dl
  :classification: chemical
  :property: mass concentration
  :metric: true
  :special: false
  :arbitrary: false
- :names: Svedberg unit
  :symbol: S
  :primary_code: "[S]"
  :secondary_code: "[S]"
  :scale:
    :value: 1
    :unit_code: 10*-13.s
  :classification: chemical
  :property: sedimentation coefficient
  :metric: false
  :special: false
  :arbitrary: false
- :names: high power field
  :symbol: HPF
  :primary_code: "[HPF]"
  :secondary_code: "[HPF]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: view area in microscope
  :metric: false
  :special: false
  :arbitrary: false
- :names: low power field
  :symbol: LPF
  :primary_code: "[LPF]"
  :secondary_code: "[LPF]"
  :scale:
    :value: 100
    :unit_code: '1'
  :classification: chemical
  :property: view area in microscope
  :metric: false
  :special: false
  :arbitrary: false
- :names: katal
  :symbol: kat
  :primary_code: kat
  :secondary_code: KAT
  :scale:
    :value: 1
    :unit_code: mol/s
  :classification: chemical
  :property: catalytic activity
  :metric: true
  :special: false
  :arbitrary: false
- :names: Unit
  :symbol: U
  :primary_code: U
  :secondary_code: U
  :scale:
    :value: 1
    :unit_code: umol/min
  :classification: chemical
  :property: catalytic activity
  :metric: true
  :special: false
  :arbitrary: false
- :names: international unit
  :symbol: IU
  :primary_code: "[iU]"
  :secondary_code: "[IU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: arbitrary
  :metric: true
  :special: false
  :arbitrary: true
- :names: international unit
  :symbol: i.U.
  :primary_code: "[IU]"
  :secondary_code: "[IU]"
  :scale:
    :value: 1
    :unit_code: "[iU]"
  :classification: chemical
  :property: arbitrary
  :metric: true
  :special: false
  :arbitrary: true
- :names: arbitary unit
  :symbol: arb. U
  :primary_code: "[arb'U]"
  :secondary_code: "[ARB'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: arbitrary
  :metric: false
  :special: false
  :arbitrary: true
- :names: United States Pharmacopeia unit
  :symbol: U.S.P.
  :primary_code: "[USP'U]"
  :secondary_code: "[USP'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: arbitrary
  :metric: false
  :special: false
  :arbitrary: true
- :names: GPL unit
  :primary_code: "[GPL'U]"
  :secondary_code: "[GPL'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of anticardiolipin IgG
  :metric: false
  :special: false
  :arbitrary: true
- :names: MPL unit
  :primary_code: "[MPL'U]"
  :secondary_code: "[MPL'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of anticardiolipin IgM
  :metric: false
  :special: false
  :arbitrary: true
- :names: APL unit
  :primary_code: "[APL'U]"
  :secondary_code: "[APL'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of anticardiolipin IgA
  :metric: false
  :special: false
  :arbitrary: true
- :names: Bethesda unit
  :primary_code: "[beth'U]"
  :secondary_code: "[BETH'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of factor VIII inhibitor
  :metric: false
  :special: false
  :arbitrary: true
- :names: anti factor Xa unit
  :primary_code: "[anti'Xa'U]"
  :secondary_code: "[ANTI'XA'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of factor Xa inhibitor (heparin)
  :metric: false
  :special: false
  :arbitrary: true
- :names: Todd unit
  :primary_code: "[todd'U]"
  :secondary_code: "[TODD'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity antistreptolysin O
  :metric: false
  :special: false
  :arbitrary: true
- :names: Dye unit
  :primary_code: "[dye'U]"
  :secondary_code: "[DYE'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of amylase
  :metric: false
  :special: false
  :arbitrary: true
- :names: Somogyi unit
  :primary_code: "[smgy'U]"
  :secondary_code: "[SMGY'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of amylase
  :metric: false
  :special: false
  :arbitrary: true
- :names: Bodansky unit
  :primary_code: "[bdsk'U]"
  :secondary_code: "[BDSK'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of phosphatase
  :metric: false
  :special: false
  :arbitrary: true
- :names: King-Armstrong unit
  :primary_code: "[ka'U]"
  :secondary_code: "[KA'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of phosphatase
  :metric: false
  :special: false
  :arbitrary: true
- :names: Kunkel unit
  :primary_code: "[knk'U]"
  :secondary_code: "[KNK'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: arbitrary biologic activity
  :metric: false
  :special: false
  :arbitrary: true
- :names: Mac Lagan unit
  :primary_code: "[mclg'U]"
  :secondary_code: "[MCLG'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: arbitrary biologic activity
  :metric: false
  :special: false
  :arbitrary: true
- :names: tuberculin unit
  :primary_code: "[tb'U]"
  :secondary_code: "[TB'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity of tuberculin
  :metric: false
  :special: false
  :arbitrary: true
- :names: 50% cell culture infectious dose
  :symbol: CCID<sub>50</sub>
  :primary_code: "[CCID_50]"
  :secondary_code: "[CCID_50]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity (infectivity) of an infectious agent preparation
  :metric: false
  :special: false
  :arbitrary: true
- :names: 50% tissue culture infectious dose
  :symbol: TCID<sub>50</sub>
  :primary_code: "[TCID_50]"
  :secondary_code: "[TCID_50]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity (infectivity) of an infectious agent preparation
  :metric: false
  :special: false
  :arbitrary: true
- :names: 50% embryo infectious dose
  :symbol: EID<sub>50</sub>
  :primary_code: "[EID_50]"
  :secondary_code: "[EID_50]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: biologic activity (infectivity) of an infectious agent preparation
  :metric: false
  :special: false
  :arbitrary: true
- :names: plaque forming units
  :symbol: PFU
  :primary_code: "[PFU]"
  :secondary_code: "[PFU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: amount of an infectious agent
  :metric: false
  :special: false
  :arbitrary: true
- :names: focus forming units
  :symbol: FFU
  :primary_code: "[FFU]"
  :secondary_code: "[FFU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: amount of an infectious agent
  :metric: false
  :special: false
  :arbitrary: true
- :names: colony forming units
  :symbol: CFU
  :primary_code: "[CFU]"
  :secondary_code: "[CFU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: amount of a proliferating organism
  :metric: false
  :special: false
  :arbitrary: true
- :names: index of reactivity
  :symbol: IR
  :primary_code: "[IR]"
  :secondary_code: "[IR]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: amount of an allergen callibrated through in-vivo testing using the Stallergenes®
    method.
  :metric: false
  :special: false
  :arbitrary: true
- :names: bioequivalent allergen unit
  :symbol: BAU
  :primary_code: "[BAU]"
  :secondary_code: "[BAU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: amount of an allergen callibrated through in-vivo testing based on the
    ID50EAL method of (intradermal dilution for 50mm sum of erythema diameters
  :metric: false
  :special: false
  :arbitrary: true
- :names: allergen unit
  :symbol: AU
  :primary_code: "[AU]"
  :secondary_code: "[AU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: procedure defined amount of an allergen using some reference standard
  :metric: false
  :special: false
  :arbitrary: true
- :names: allergen unit for Ambrosia artemisiifolia
  :symbol: Amb a 1 U
  :primary_code: "[Amb'a'1'U]"
  :secondary_code: "[AMB'A'1'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: procedure defined amount of the major allergen of ragweed.
  :metric: false
  :special: false
  :arbitrary: true
- :names: protein nitrogen unit
  :symbol: PNU
  :primary_code: "[PNU]"
  :secondary_code: "[PNU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: procedure defined amount of a protein substance
  :metric: false
  :special: false
  :arbitrary: true
- :names: Limit of flocculation
  :symbol: Lf
  :primary_code: "[Lf]"
  :secondary_code: "[LF]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: procedure defined amount of an antigen substance
  :metric: false
  :special: false
  :arbitrary: true
- :names: D-antigen unit
  :primary_code: "[D'ag'U]"
  :secondary_code: "[D'AG'U]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: procedure defined amount of a poliomyelitis d-antigen substance
  :metric: false
  :special: false
  :arbitrary: true
- :names: fibrinogen equivalent unit
  :primary_code: "[FEU]"
  :secondary_code: "[FEU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: amount of fibrinogen broken down into the measured d-dimers
  :metric: false
  :special: false
  :arbitrary: true
- :names: ELISA unit
  :primary_code: "[ELU]"
  :secondary_code: "[ELU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: arbitrary ELISA unit
  :metric: false
  :special: false
  :arbitrary: true
- :names: Ehrlich unit
  :primary_code: "[EU]"
  :secondary_code: "[EU]"
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: chemical
  :property: Ehrlich unit
  :metric: false
  :special: false
  :arbitrary: true
- :names: neper
  :symbol: Np
  :primary_code: Np
  :secondary_code: NEP
  :scale:
    :function_code: ln
    :value: 1
    :unit_code: '1'
  :classification: levels
  :property: level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel
  :symbol: B
  :primary_code: B
  :secondary_code: B
  :scale:
    :function_code: lg
    :value: 1
    :unit_code: '1'
  :classification: levels
  :property: level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel sound pressure
  :symbol: B(SPL)
  :primary_code: B[SPL]
  :secondary_code: B[SPL]
  :scale:
    :function_code: 2lg
    :value: 2
    :unit_code: 10*-5.Pa
  :classification: levels
  :property: pressure level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel volt
  :symbol: B(V)
  :primary_code: B[V]
  :secondary_code: B[V]
  :scale:
    :function_code: 2lg
    :value: 1
    :unit_code: V
  :classification: levels
  :property: electric potential level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel millivolt
  :symbol: B(mV)
  :primary_code: B[mV]
  :secondary_code: B[MV]
  :scale:
    :function_code: 2lg
    :value: 1
    :unit_code: mV
  :classification: levels
  :property: electric potential level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel microvolt
  :symbol: B(μV)
  :primary_code: B[uV]
  :secondary_code: B[UV]
  :scale:
    :function_code: 2lg
    :value: 1
    :unit_code: uV
  :classification: levels
  :property: electric potential level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel 10 nanovolt
  :symbol: B(10 nV)
  :primary_code: B[10.nV]
  :secondary_code: B[10.NV]
  :scale:
    :function_code: 2lg
    :value: 10
    :unit_code: nV
  :classification: levels
  :property: electric potential level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel watt
  :symbol: B(W)
  :primary_code: B[W]
  :secondary_code: B[W]
  :scale:
    :function_code: lg
    :value: 1
    :unit_code: W
  :classification: levels
  :property: power level
  :metric: true
  :special: true
  :arbitrary: false
- :names: bel kilowatt
  :symbol: B(kW)
  :primary_code: B[kW]
  :secondary_code: B[KW]
  :scale:
    :function_code: lg
    :value: 1
    :unit_code: kW
  :classification: levels
  :property: power level
  :metric: true
  :special: true
  :arbitrary: false
- :names: stere
  :symbol: st
  :primary_code: st
  :secondary_code: STR
  :scale:
    :value: 1
    :unit_code: m3
  :classification: misc
  :property: volume
  :metric: true
  :special: false
  :arbitrary: false
- :names: Ångström
  :symbol: Å
  :primary_code: Ao
  :secondary_code: AO
  :scale:
    :value: !ruby/object:BigDecimal 18:0.1e0
    :unit_code: nm
  :classification: misc
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: barn
  :symbol: b
  :primary_code: b
  :secondary_code: BRN
  :scale:
    :value: 100
    :unit_code: fm2
  :classification: misc
  :property: action area
  :metric: false
  :special: false
  :arbitrary: false
- :names: technical atmosphere
  :symbol: at
  :primary_code: att
  :secondary_code: ATT
  :scale:
    :value: 1
    :unit_code: kgf/cm2
  :classification: misc
  :property: pressure
  :metric: false
  :special: false
  :arbitrary: false
- :names: mho
  :symbol: mho
  :primary_code: mho
  :secondary_code: MHO
  :scale:
    :value: 1
    :unit_code: S
  :classification: misc
  :property: electric conductance
  :metric: true
  :special: false
  :arbitrary: false
- :names: pound per sqare inch
  :symbol: psi
  :primary_code: "[psi]"
  :secondary_code: "[PSI]"
  :scale:
    :value: 1
    :unit_code: "[lbf_av]/[in_i]2"
  :classification: misc
  :property: pressure
  :metric: false
  :special: false
  :arbitrary: false
- :names: circle
  :symbol: circ
  :primary_code: circ
  :secondary_code: CIRC
  :scale:
    :value: 2
    :unit_code: "[pi].rad"
  :classification: misc
  :property: plane angle
  :metric: false
  :special: false
  :arbitrary: false
- :names: spere
  :symbol: sph
  :primary_code: sph
  :secondary_code: SPH
  :scale:
    :value: 4
    :unit_code: "[pi].sr"
  :classification: misc
  :property: solid angle
  :metric: false
  :special: false
  :arbitrary: false
- :names: metric carat
  :symbol: ct<sub>m</sub>
  :primary_code: "[car_m]"
  :secondary_code: "[CAR_M]"
  :scale:
    :value: !ruby/object:BigDecimal 18:0.2e0
    :unit_code: g
  :classification: misc
  :property: mass
  :metric: false
  :special: false
  :arbitrary: false
- :names: carat of gold alloys
  :symbol: ct<sub><r>Au</r></sub>
  :primary_code: "[car_Au]"
  :secondary_code: "[CAR_AU]"
  :scale:
    :value: 1
    :unit_code: "/24"
  :classification: misc
  :property: mass fraction
  :metric: false
  :special: false
  :arbitrary: false
- :names: Smoot
  :primary_code: "[smoot]"
  :secondary_code: "[SMOOT]"
  :scale:
    :value: 67
    :unit_code: "[in_i]"
  :classification: misc
  :property: length
  :metric: false
  :special: false
  :arbitrary: false
- :names: meter per square seconds per square root of hertz
  :primary_code: "[m/s2/Hz^(1/2)]"
  :secondary_code: "[M/S2/HZ^(1/2)]"
  :scale:
    :function_code: sqrt
    :value: 1
    :unit_code: m2/s4/Hz
  :classification: misc
  :property: amplitude spectral density
  :metric: false
  :special: true
  :arbitrary: false
- :names: bit
  :symbol: bit<sub>s</sub>
  :primary_code: bit_s
  :secondary_code: BIT_S
  :scale:
    :function_code: ld
    :value: 1
    :unit_code: '1'
  :classification: infotech
  :property: amount of information
  :metric: false
  :special: true
  :arbitrary: false
- :names: bit
  :symbol: bit
  :primary_code: bit
  :secondary_code: BIT
  :scale:
    :value: 1
    :unit_code: '1'
  :classification: infotech
  :property: amount of information
  :metric: true
  :special: false
  :arbitrary: false
- :names: byte
  :symbol: B
  :primary_code: By
  :secondary_code: BY
  :scale:
    :value: 8
    :unit_code: bit
  :classification: infotech
  :property: amount of information
  :metric: true
  :special: false
  :arbitrary: false
- :names: baud
  :symbol: Bd
  :primary_code: Bd
  :secondary_code: BD
  :scale:
    :value: 1
    :unit_code: "/s"
  :classification: infotech
  :property: signal transmission rate
  :metric: true
  :special: false
  :arbitrary: false