SI REFERENCE POINT
Version: 1.0 Beta , last update: 2024-09-23

Quantities

Lists the kinds of quantity included in the KCDB.

The knowledge base can be downloaded from this link: quantities.ttl
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Quantity PID (Quantity) SI unit symbol PID (Unit)
absorbance
absorbed dose
$$\text{Gy}^{}$$
absorbed dose rate
$$\text{Gy}^{}\ \ \text{s}^{-1}\ \ $$
acceleration
$$\text{m}^{}\ \ \text{s}^{-2}\ \ $$
action
$$\text{J}^{}\ \ \text{s}^{}\ \ $$
activity referred to a radionuclide
$$\text{Bq}^{}$$
amount of substance
$$\text{mol}^{}$$
amount of substance concentration
$$\text{mol}^{}\ \ \text{m}^{-3}\ \ $$
angular acceleration
$$\text{rad}^{}\ \ \text{s}^{-2}\ \ $$
angular frequency
$$\text{rad}^{}\ \ \text{s}^{-1}\ \ $$
angular velocity
$$\text{rad}^{}\ \ \text{s}^{-1}\ \ $$
anisotropy
area
$$\text{m}^{2}\ \ $$
bidirectional reflectance distribution function
$$\text{sr}^{-1}\ \ $$
calorific value
$$\text{J}^{}\ \ \text{kg}^{-1}\ \ $$
capacitance
$$\text{F}^{}$$
catalytic activity
$$\text{kat}^{}$$
catalytic activity concentration
$$\text{kat}^{}\ \ \text{m}^{-3}\ \ $$
Celsius temperature
$$\text{℃}^{}$$
constraint
$$\text{Pa}^{}$$
correlated colour temperature
$$\text{K}^{}$$
current density
$$\text{A}^{}\ \ \text{m}^{-2}\ \ $$
density
$$\text{kg}^{}\ \ \text{m}^{-3}\ \ $$
dew/frost point
$$\text{℃}^{}$$
dielectric loss tangent
dispersion slope
distance scale deviation
distribution temperature
$$\text{K}^{}$$
dose equivalent
$$\text{Sv}^{}$$
dynamic viscosity
$$\text{Pa}^{}\ \ \text{s}^{}\ \ $$
electric charge
$$\text{C}^{}$$
electric charge density
$$\text{C}^{}\ \ \text{m}^{-3}\ \ $$
electric conductance
$$\text{S}^{}$$
electric current
$$\text{A}^{}$$
electric displacement
$$\text{C}^{}\ \ \text{m}^{-2}\ \ $$
electric field strength
$$\text{V}^{}\ \ \text{m}^{-1}\ \ $$
electric flux density
$$\text{C}^{}\ \ \text{m}^{-2}\ \ $$
electric potential difference
$$\text{V}^{}$$
electric resistance
$$\text{Ω}^{}$$
emission rate
$$\text{s}^{-1}\ \ $$
emissivity
emittance
encircled flux
energy
$$\text{J}^{}$$
energy density
$$\text{J}^{}\ \ \text{m}^{-3}\ \ $$
entropy
$$\text{J}^{}\ \ \text{K}^{-1}\ \ $$
exposure (x and γ rays)
$$\text{C}^{}\ \ \text{kg}^{-1}\ \ $$
fluence
$$\text{m}^{-2}\ \ $$
fluence rate
$$\text{m}^{-2}\ \ \text{s}^{-1}\ \ $$
force
$$\text{N}^{}$$
frequency
$$\text{Hz}^{}$$
gloss
harmonic distortion
heat capacity
$$\text{J}^{}\ \ \text{K}^{-1}\ \ $$
heat flux density
$$\text{W}^{}\ \ \text{m}^{-2}\ \ $$
heat of fusion
$$\text{J}^{}\ \ \text{kg}^{-1}\ \ $$
heat quantity
$$\text{J}^{}$$
illuminance
$$\text{lx}^{}$$
inductance
$$\text{H}^{}$$
irradiance
$$\text{W}^{}\ \ \text{m}^{-2}\ \ $$
ITS-90 temperature (K)
$$\text{K}^{}$$
ITS-90 temperature (℃)
$$\text{℃}^{}$$
kerma
$$\text{Gy}^{}$$
kerma rate
$$\text{Gy}^{}\ \ \text{s}^{-1}\ \ $$
kinematic viscosity
$$\text{m}^{2}\ \ \text{s}^{-1}\ \ $$
length
$$\text{m}^{}$$
length ratio
luminance
$$\text{cd}^{}\ \ \text{m}^{-2}\ \ $$
luminance coefficient
$$\text{sr}^{-1}\ \ $$
luminance factor
luminous exposure
$$\text{lx}^{}\ \ \text{s}^{}\ \ $$
luminous exposure reponsivity
$$\text{lx}^{-1}\ \ \text{s}^{-1}\ \ $$
luminous flux
$$\text{lm}^{}$$
luminous intensity
$$\text{cd}^{}$$
magnetic field strength
$$\text{A}^{}\ \ \text{m}^{-1}\ \ $$
magnetic flux
$$\text{Wb}^{}$$
magnetic flux density
$$\text{T}^{}$$
magnetic polarization
magnetic susceptibility
mass
$$\text{kg}^{}$$
mass concentration
$$\text{kg}^{}\ \ \text{m}^{-3}\ \ $$
molar energy
$$\text{J}^{}\ \ \text{mol}^{-1}\ \ $$
molar entropy
$$\text{J}^{}\ \ \text{K}^{-1}\ \ \text{mol}^{-1}\ \ $$
molar heat capacity
$$\text{J}^{}\ \ \text{K}^{-1}\ \ \text{mol}^{-1}\ \ $$
moment of force
$$\text{N}^{}\ \ \text{m}^{}\ \ $$
numerical aperture
optical fibre attenuation
$$\text{B}^{}\ \ \text{m}^{-1}\ \ $$
permeability
$$\text{H}^{}\ \ \text{m}^{-1}\ \ $$
permittivity
$$\text{F}^{}\ \ \text{m}^{-1}\ \ $$
phase angle
$$\text{rad}^{}$$
plane angle
$$\text{rad}^{}$$
PLTS-2000 temperature
$$\text{K}^{}$$
power
$$\text{W}^{}$$
pressure
$$\text{Pa}^{}$$
quality factor
radiance
$$\text{W}^{}\ \ \text{sr}^{-1}\ \ \text{m}^{-2}\ \ $$
radiance factor
radiant exitance
$$\text{W}^{}\ \ \text{m}^{-2}\ \ $$
radiant exposure
$$\text{J}^{}\ \ \text{m}^{2}\ \ $$
radiant flux
$$\text{W}^{}$$
radiant intensity
$$\text{W}^{}\ \ \text{sr}^{-1}\ \ $$
radiant power
$$\text{W}^{}$$
ratio logarithm (B)
$$\text{B}^{}$$
ratio logarithm (Np)
$$\text{Np}^{}$$
reflectance
reflectance factor
refractive index
relative humidity
relative permeability
relative permittivity
relative radiant exitance
shielding factor
$$\text{B}^{}$$
solid angle
$$\text{sr}^{}$$
specific energy
$$\text{J}^{}\ \ \text{kg}^{-1}\ \ $$
specific entropy
$$\text{J}^{}\ \ \text{K}^{-1}\ \ \text{kg}^{-1}\ \ $$
specific heat capacity
$$\text{J}^{}\ \ \text{K}^{-1}\ \ \text{kg}^{-1}\ \ $$
specific volume
$$\text{m}^{3}\ \ \text{kg}^{-1}\ \ $$
surface charge density
$$\text{C}^{}\ \ \text{m}^{-2}\ \ $$
surface density
$$\text{kg}^{}\ \ \text{m}^{-2}\ \ $$
surface tension
$$\text{N}^{}\ \ \text{m}^{-1}\ \ $$
thermal conductivity
$$\text{W}^{}\ \ \text{m}^{-1}\ \ \text{K}^{-1}\ \ $$
thermal diffusivity
$$\text{m}^{2}\ \ \text{s}^{-1}\ \ $$
thermal expansion coefficient (linear)
$$\text{m}^{}\ \ \text{m}^{-1}\ \ \text{K}^{-1}\ \ $$
thermodynamic temperature
$$\text{K}^{}$$
time
$$\text{s}^{}$$
transmittance
velocity
$$\text{m}^{}\ \ \text{s}^{-1}\ \ $$
viscometer constant
$$\text{m}^{2}\ \ \text{s}^{-2}\ \ $$
volume
$$\text{m}^{3}\ \ $$
wavenumber
$$\text{m}^{-1}\ \ $$
whiteness
work
$$\text{J}^{}$$