pascal per metre
hardness index
Miscellaneous
nanogram per kilogram
mass ratio
Mechanics
CGS (Centimetre-Gram-Second system) unit of the pressure divided by the SI base unit metre.
torr per metre
British thermal unit (international table) per hour square foot degree Rankine
surface coefficient of heat transfer
Heat
Unit of the heat transition coefficient according to the imperial system of units.
British thermal unit (thermochemical) per hour square foot degree Fahrenheit
0,001-fold of the derived SI unit pascal divided by the SI base unit metre.
millipascal per metre
square metre
atomic attenuation coefficient
equivalent absorption area of a surface or object
cross-section
slowing down area, diffusion area, migration area
area
nuclear quadrupole moment
Atomic and Nuclear Physics
Space and Time
Nuclear Reactions and Ionizing Radiations
Acoustics
gigahertz metre
coefficient, performance characteristic
Electricity and Magnetism
Unit of the heat transition coefficient according to the Imperial system of units.
British thermal unit (international table) per hour square foot degree Fahrenheit
Logarithmic relationship to base 10.
bel
level of a field quantity, level of a power quantity
Periodic and related phenomena
1 Dec := log2 10 ˜ 3,32 according to the logarithm for frequency range between f1 and f2, when f2/f1 = 10.
decade (logarithmic)
logarithmic decrement
reciprocal second
Debye angular frequency
photon flux
circular frequency
decay constant, disintegration constant
damping coefficient
Larmor angular frequency
angular frequency, pulsatance
rotational frequency
Solid State Physics
Light and Related Electromagnetic Radiations
Outdated unit of the pressure divided by the SI base unit metre.
standard atmosphere per metre
hertz metre
square metre per kilogram
mass attenuation coefficient
mass energy transfer coefficient
volt per kelvin
Seebeck coefficient for substances a and b
square metre per mole
molar absorption coefficient
molar attenuation coefficient
megapascal per bar
pressure ratio
Unit of the burst index as derived unit for pressure pascal related to the substance, represented as a quotient from the SI base unit kilogram divided by the power of the SI base unit metre by exponent 2.
pascal square metre per kilogram
burst index
British thermal unit (thermochemical) per second square foot degree Fahrenheit
megahertz metre
reciprocal metre
vergence, lens power
curvature
linear attenuation coefficient
angular repetency, angular wave number
angular reciprocal lattice vector, fundamental reciprocal lattice vector
wave number, attenuation coefficient, phase coefficient, propagation coefficient, repetency
wavenumber, repetency
macroscopic cross-section, volumic cross-section, volumic total cross-section, macroscopic total cross-section
linear attenuation coefficient, linear extinction coefficient,linear absorption coefficient
attenuation coefficient, phase coefficient, propagation coefficient
linear ionization by a particle, total ionization by a particle
repetency, wavenumber
Rydberg constant
millivolt per kelvin
Thompson coefficient
cubic metre per cubic metre
volume ratio
1000-fold of the derived SI unit watt divided by the product of the power of the SI base unit metre by exponent 2 and the SI base unit kelvin.
kilowatt per square metre kelvin
bar per kelvin
pressure coefficient
pascal per kelvin
ampere square metre per joule second
gyromagnetic coefficient, (gyromagnetic ratio)
pascal per bar
picopascal per kilometre
kilogram per kilogram
calorie (international table) per second square centimetre kelvin
cubic metre per coulomb
Hall coefficient
reciprocal kelvin or kelvin to the power minus one
linear expansion coefficient, cubic expansion coefficient, relative pressure coefficient
Synonym: unit
one
proton number
relative permittivity
Schmidt number
refractive index
orbital angular momentum quantum number
charge number of ion
fine structure constant
mole fraction of B, mole ratio of solute B
absolute activity
Fourier number
Reynolds number
standard absolute activity of B (in a liquid or a solid mixture)
thermal diffusion ratio, thermal diffusion factor
emissivity, spectral emissivity, emissivity at a specified wavelength, directional spectral emissivity
hyperfine structure quantum number
order of reflexion
Fourier number for mass transfer
multiplication factor, infinite medium multiplication factor, effective multiplication factor
magnetic susceptibility
Cowling number
magnetic Reynolds number
Knudsen number
poisson ratio, poisson number
Stanton number
degree of dissociation
electric susceptibility
internal conversion factor
proton number, atomic number
standard equilibrium constant
spin angular momentum quantum number
neutron number
Prandtl number
neutron yield per fission, neutron yield per absorption
Weber number
Rayleigh number
Grüneisen parameter
spectral absorption factor, spectral absorptance, spectral reflectionfactor,spectral reflectance, spectral transmission factor, spectral transmittance, spectral radiance factor
coupling coefficient, leakage coefficient
g-factor of atom or electron, g-factor of nucleus
resonance escape probability
Grashof number
optical density
transport number of ion B, current fraction of ion B
Lewis number
short-range order parameter, long-range order parameter
friction factor, coefficient of friction
Strouhal number
Peclet number
packing fraction, binding fraction
relative mass excess, relative mass defect
nucleon number, mass number
activity of solvent A, relative activity of solvent A (especially in a dilute solution), osmotic coefficient of the solvent A (especially in a dilute solution), standard absolute activity of solvent A (especially in a dilute solution)
relative density, relative mass density
microcanonical partition function, canonical partition function, grand-canonical partition function, grand partition function, molecular partition function, partition function of a molecule
Alfven number
stoichiometric number of B
activity coefficient of solute B (especially in a dilute solution),standard absolute activity of solute B (especially in a dilute solution)
nuclear spin quantum number
standard absolute activity of B (in a gaseous mixture)
Nusselt number for mass transfer
Nusselt number
ratio of the specific heat capacities, ratio of the massic heat capacity, isentropic exponent
Hartmann number
reactivity
principle quantum number
magnetic quantum number
activity coefficient of B (in a liquid as a solid mixture)
Debye-Walle factor
number of turns in a winding, number of phases, number of pairs of poles
fast fission factor
non leakage probability
luminous efficiency, spectral luminous efficiency,luminous efficiency at a specified wavelength
Froude number
Grashof number for mass transfer
Stanton number for mass transfer
thermal utilization factor
relative permeability
relative molecular mass
relative atomic mass
average logarithmic energy decrement
Landau-Ginzburg number
linear strain, relative elongation, shear strain, volume or bulk strain
Peclet number for mass transfer
coordinates trichromatic
Mach number
dissipation factor, dissipance, reflection factor, reflectance, transmission factor, transmittance, absorption factor, absorbance
Madelung constant
Euler number
(rest) mass of electron, (rest) mass of proton, (rest) mass of neutron
mobility ratio
CIE colorimetric functions
total angular momentum quantum number
lethargy
statistical weight
number of molecules or other elementary entities
Physical Chemistry and Molecular Physics
Characteristic Numbers (dimensionless parameters)
kilopascal per millimetre
reciprocal volt - ampere reciprocal second
reciprocal megakelvin or megakelvin to the power minus one
bar per bar
microgram per kilogram
millibar per bar
cubic millimetre per cubic metre
millilitre per square centimetre second
porosity
Proportion of the mass consisting of the avoirdupois pound according to the avoirdupois unit system divided by the avoirdupois pound according to the avoirdupois unit system.
pound per pound
neper
psi per psi
kilohertz metre
kilopascal per bar
Compound unit for pressure (pound-force according to the Anglo-American unit system divided by the power of the unit inch according to the Anglo-American and Imperial system of units with the exponent 2) divided by the unit inch according to the Anglo-American and Imperial system of units .
psi per inch
Dimensionless quantity units
Units of measure grouped by quantity kind: dimensionless quantity.
watt per square metre kelvin
coefficient of heat transfer
decibel
sound pressure level, sound power level
sound reduction index
microlitre per litre
millilitre per litre
megahertz kilometre
1000-fold of the derived SI unit pascal divided by the SI base unit metre.
kilopascal per metre
Reciprocal of the derived SI unit joule.
reciprocal joule
metre
wavelength
mean free path of phonons or electrons, London penetration depth, coherence length, diffusion length
nuclear radius, electron radius, Compton wavelength
mean linear range, mean free path
slowing-down length, diffusion length, migration length
particle position vector, equilibrium position vector of ion or atom, displacement vector of ion or atom
object distance, image distance, focal distance
Bohr radius
(instantaneous) sound particle displacement
diffusion coefficient for neutron fluence rate, (diffusion coefficient for neutron flux density)
lattice vector, fundamental lattice vector
mean free path
half-thickness, half-value thickness
length, breadth, height, thickness, radius, radius of curvature, cartesian coordinates, diameter, length of path, distance
British thermal unit (international table) per second square foot degree Rankine
cubic centimetre per cubic metre
cubic decimetre per cubic metre
British thermal unit (international table) per second square foot degree Fahrenheit
Conversion factor required
cubic foot per minute per square foot
kilopascal square metre per gram
Synonym: metre squared per second (square metres/second US)
square metre per second
thermal diffusivity
diffusion coefficient, diffusion coefficient for neutron number density
kinematic viscosity
diffusion coefficient
thermal diffusion coefficient
hectopascal per bar
calorie (thermochemical) per second square centimetre kelvin
cubic metre per second
recombination coefficient
volume flow rate
(instantaneous) volume flow rate
litre per litre
neper per second
100-fold of the derived SI unit pascal divided by the SI base unit metre.
hectopascal per metre
Microgram per hectogram.
microgram per hectogram
Obsolete and non-legal unit of the pressure which is generated by a 10 metre water column divided by the SI base unit metre.
technical atmosphere per metre
milligram per kilogram
Unit of volume flow cubic meters by second related to the transmission surface in square metres.
cubic metre per second square metre
The activity of the (solvated) hydrogen ion (a logarithmic measure used to state the acidity or alkalinity of a chemical solution).
pH (potential of Hydrogen)
acidity and alkalinity
reciprocal kilovolt - ampere reciprocal hour