Measurable Aspects

Name Symbol Reference Details
reflectance https://si-digital-framework.org/quantities/OPRE Details
optical-density https://doi.org/10.1351/goldbook.A00028 Details
absorbance https://si-digital-framework.org/quantities/OPAB Details
transmittance https://si-digital-framework.org/quantities/OPTR Details
photon-energy Details
emissivity https://si-digital-framework.org/quantities/EMIS Details
luminous-exitance NIST Special Publication 1038 Details
wavelength https://doi.org/10.1351/goldbook.W06659 Details
conductivity https://doi.org/10.1351/goldbook.C01245 Details
resistivity NIST Special Publication 1038 Details
si-dimensionless Details
magnetic-field-strength https://si-digital-framework.org/quantities/MAFD Details
specific-internal-energy NIST Special Publication 1038 Details
heat-capacity https://si-digital-framework.org/quantities/HECA Details
linear-expansion-coefficient NIST Special Publication 1038 Details
kinematic-viscosity https://si-digital-framework.org/quantities/KIVI Details
moment-of-inertia https://doi.org/10.1351/goldbook.M04006 Details
momentum NIST Special Publication 1038 Details
moment-of-mass NIST Special Publication 1038 Details
fuel-efficiency NIST Special Publication 1038 Details
luminous-intensity https://si-digital-framework.org/quantities/LUIN Details
volumetric-flow-rate NIST Special Publication 1038 Details
catalytic-activity-concentration https://si-digital-framework.org/quantities/CTAC Details
radiance https://si-digital-framework.org/quantities/RADI Details
radiant-intensity https://si-digital-framework.org/quantities/RAIN Details
absorbed-dose-rate https://si-digital-framework.org/quantities/ABDR Details
exposure Details
molar-heat-capacity https://si-digital-framework.org/quantities/MOHC Details
molar-entropy https://si-digital-framework.org/quantities/MOEN Details
molar-energy https://si-digital-framework.org/quantities/MOEG Details
permeability https://si-digital-framework.org/quantities/PRME Details
amount-of-substance n https://si-digital-framework.org/quantities/AMSU Details
permittivity https://si-digital-framework.org/quantities/PRMI Details
electric-displacement https://si-digital-framework.org/quantities/ELDS Details
electric-flux-density https://si-digital-framework.org/quantities/ELFD Details
surface-charge-density https://si-digital-framework.org/quantities/SUCD Details
electric-charge-density https://si-digital-framework.org/quantities/ELCD Details
electric-field-strength https://si-digital-framework.org/quantities/ELFS Details
energy-density https://si-digital-framework.org/quantities/ENGD Details
anisotropy https://si-digital-framework.org/quantities/ANIS Details
specific-energy https://si-digital-framework.org/quantities/SENG Details
specific-entropy https://si-digital-framework.org/quantities/SENT Details
specific-heat-capacity https://si-digital-framework.org/quantities/SHEC Details
entropy https://si-digital-framework.org/quantities/ENTR Details
action https://si-digital-framework.org/quantities/ACTI Details
irradiance https://si-digital-framework.org/quantities/IRRA Details
heat-flux-density https://si-digital-framework.org/quantities/HEFD Details
angular-acceleration https://si-digital-framework.org/quantities/ACCA Details
angular-frequency https://si-digital-framework.org/quantities/ANGF Details
angular-velocity https://si-digital-framework.org/quantities/VELA Details
surface-tension https://si-digital-framework.org/quantities/SUTE Details
moment-of-force https://si-digital-framework.org/quantities/TORQ Details
electric-current https://si-digital-framework.org/quantities/ELCU Details
acoustic-impedance https://si-digital-framework.org/quantities/ACIM Details
luminous_exposure https://si-digital-framework.org/quantities/LUXP Details
amount-of-substance-concentration https://si-digital-framework.org/quantities/AMSC Details
magenetic-field-strength https://si-digital-framework.org/quantities/MAFD Details
current-density https://si-digital-framework.org/quantities/CUDE Details
specific-volume https://si-digital-framework.org/quantities/SPVO Details
surface-mass-density https://si-digital-framework.org/quantities/SUDE Details
volumetric-mass-density https://si-digital-framework.org/quantities/DENS Details
wavenumber https://si-digital-framework.org/quantities/WANU Details
time https://si-digital-framework.org/quantities/TIME Details
acceleration https://si-digital-framework.org/quantities/ACCE Details
speed https://si-digital-framework.org/quantities/VELO Details
volume https://si-digital-framework.org/quantities/VOLU Details
area https://si-digital-framework.org/quantities/AREA Details
catalytic-activity https://si-digital-framework.org/quantities/CATA Details
dose-equivalent https://si-digital-framework.org/quantities/DOEQ Details
absorbed-dose https://si-digital-framework.org/quantities/ABDO Details
kerma https://si-digital-framework.org/quantities/KRMA Details
activity--(of-radionuclide) https://si-digital-framework.org/quantities/ARRN Details
illuminance https://si-digital-framework.org/quantities/ILLU Details
length https://si-digital-framework.org/quantities/LENG Details
luminous-flux https://si-digital-framework.org/quantities/LUFL Details
inductance https://si-digital-framework.org/quantities/ELIN Details
magnetic-flux-density https://si-digital-framework.org/quantities/MGFD Details
magnetic-flux https://si-digital-framework.org/quantities/MGFL Details
electric-conductance https://si-digital-framework.org/quantities/ELCO Details
electric-resistance https://si-digital-framework.org/quantities/ELRE Details
capacitance https://si-digital-framework.org/quantities/ELCA Details
electric-potential https://si-digital-framework.org/quantities/ELPD Details
electric-charge https://si-digital-framework.org/quantities/ELCH Details
radiant-flux https://si-digital-framework.org/quantities/RAFL Details
mass https://si-digital-framework.org/quantities/MASS Details
power https://si-digital-framework.org/quantities/POWR Details
amount-of-heat https://si-digital-framework.org/quantities/HEQT Details
electromotive-force https://doi.org/10.1351/goldbook.E01974 Details
heat-transfer-coefficient Details
surface-energy-density Details
thrust-to-mass-ratio Details
linear-force-density Details
water-vapour-permeance Details
linear-mass-flow-rate Details
work https://si-digital-framework.org/quantities/WORK Details
magnetomotive-force Details
reciprocal-length Details
power-density Details
thermal-impedance Details
resistivity Details
moment-of-force-per-length Details
kinematic-diffusivity Details
surface-heat-energy-density Details
water-vapour-permeability Details
reciprocal-specific-energy Details
energy https://si-digital-framework.org/quantities/ENGY Details
fluidity https://doi.org/10.1351/goldbook.F02450 Details
electric-dipole-moment https://doi.org/10.1351/goldbook.E01929 Details
radiant-flux-density https://doi.org/10.1351/goldbook.08280 Details
level-pressure Details
level-power Details
log-ratio-frequency- ISO 80000-6 Details
ratio-frequency Details
dew-point ISO 80000-5 Details
ratio-pressure Details
ratio-mass Details
stress https://si-digital-framework.org/quantities/STRE Details
thermal-conductance ISO 80000-5 Details
thermal-resistance https://doi.org/10.1351/goldbook.T06308 Details
efficiency ISO 80000-4 Details
strain ISO 80000-4 Details
angular-momentum ISO 80000-4 Details
relative-mass-density ISO 80000-4 Details
amount-of-substance-content-per-mass-of-system https://doi.org/10.1351/goldbook.S06073 Details
volume-content https://doi.org/10.1351/goldbook.V06641 Details
Heat---available-energy- https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b9#HEAT Details
pressure https://si-digital-framework.org/quantities/PRES Details
amount-of-substance-solute-per-mass-of-solvent https://doi.org/10.1351/goldbook.M03970 Details
volume-concentration https://doi.org/10.1351/goldbook.C01222 Details
amount-of-substance-fraction https://doi.org/10.1351/goldbook.A00299 Details
volume-fraction https://doi.org/10.1351/goldbook.M03722 Details
mass-fraction https://doi.org/10.1351/goldbook.M03722 Details
mass-flow-rate https://doi.org/10.1351/goldbook.M03720 Details
linear-density NIST SP-811 Details
thermal-resistivity NIST SP-811 Details
thermal-insulance NIST SP-811 Details
heat-flow-rate NIST SP-811 Details
force https://si-digital-framework.org/quantities/FORC Details
fuel-consumption NIST SP-811 Details
heat-density NIST SP-811 Details
second-moment-of-area NIST SP-811 Details
sound-intensity https://si-digital-framework.org/quantities/SOIN Details
loss-attenuation https://si-digital-framework.org/quantities/LOSS Details
thermal-expansion-coefficient-linear https://si-digital-framework.org/quantities/TEXL Details
relative-permeability https://si-digital-framework.org/quantities/REPE Details
relative-permittivity https://si-digital-framework.org/quantities/RELP Details
refractive-index https://si-digital-framework.org/quantities/REFI Details
quality-factor https://si-digital-framework.org/quantities/QFAC Details
frequency https://si-digital-framework.org/quantities/FREQ Details
PLTS-2000-temperature https://si-digital-framework.org/quantities/PLTS Details
emittance https://si-digital-framework.org/quantities/OPEM Details
magnetic-susceptibility https://si-digital-framework.org/quantities/MGSU Details
magnetic-polarization https://si-digital-framework.org/quantities/MGPO Details
kerma-rate https://si-digital-framework.org/quantities/KRMR Details
amount-of-substance-ratio- Details
fluence-rate https://si-digital-framework.org/quantities/FLUR Details
fluence https://si-digital-framework.org/quantities/FLUE Details
radiant-exitance https://si-digital-framework.org/quantities/EXIT Details
relative-humidity https://si-digital-framework.org/quantities/RHUM Details
solid-angle https://si-digital-framework.org/quantities/ANGS Details
luminance https://si-digital-framework.org/quantities/LUMA Details
thermal-conductivity https://si-digital-framework.org/quantities/TCON Details
dynamic-viscosity https://si-digital-framework.org/quantities/DYVI Details
mass-concentration https://si-digital-framework.org/quantities/MACO Details
ITS90-difference Details
ITS90 Details
energy-flux-density https://doi.org/10.1351/goldbook.E02106 Details
thermodynamic-temperature-difference Details
thermodynamic-temperature https://si-digital-framework.org/quantities/TEMT Details
period https://doi.org/10.1351/goldbook.P04493 Details
plane-angle https://si-digital-framework.org/quantities/ANGP Details
null Details