SI_Unit_E
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Table of SI units Table-A. SI base units SI prefixes Name Non-SI units accepted for use with the SI Non-SI units accepted in Japanese Measurement ACT Factor Name Symbol length m (metre) ua (astronomical unit) 10 24 yotta Z 10 21 zetta Y 10 18 exa E time s (second) min (minute), h (hour), d (day) 10 15 peta P electric A (ampere) 10 12 tera T thermodynamic temperature K (kelvin) 10 9 giga G amount of substance mol (mole) 10 6 mega M luminous intensity cd (candela) 10 3 kilo k 10 2 hecto h Table-B. Examples of coherent derived units in the SI expressed in terms of base units 10 deca da 1 10 -1 deci d area m 2 (metre) ha (hectare) 10 -2 centi c volume m 3 (cubic metre) l, L (litre) 10 -3 milli m speed, velocity m/s (metre per second) 10 -6 micro μ acceleration m/s 2 (metre per second squared) 10 -9 nano n wavenumber m -1 (reciprocal metre) 10 -12 pico p density, mass density kg/m 3 (kilogram per cubic metre) 10 -15 femto f surface density kg/m 2 (kilogram per square metre) 10 -18 atto a specific volume m 3 /kg (cubic metre per kilogram) 10 -21 zepto z current density A/m 2 (ampere per square metre) 10 -24 yocto y magnetic field strength A/m (ampere per metre) amount concentration, concentration mol/m 3 (mole per cubic metre) %、vol%(volume parts per cent), *1) mass concentration kg/m 3 (kilogram per cubic metre) %、wt%(weight parts per cent), *1) luminance cd/m 2 (candela per square metre) refractive index 1 (one) relative permeability 1 (one) *1) ‰(parts per thouzand), ppm(parts per million), ppb(parts per billion), ppt(parts per trillion), ppq(parts per quadrollion) Table-C. Coherent derived units in the SI with special names and special names and symbols SI units Expressed in terms of other SI units Non-SI units accepted for use with the SI Non-SI units accepted in Japanese Measurement ACT plane angle rad (radian) 1 o (degree), ' (minute), " (second) solid angle sr (steradian) 1 frequency Hz (hertz) rpm(revolution per minute), force N (newton) pressure, stress Pa (pascal) N/m 2 atm(atmosphere）, Torr(torr) energy, work, amount of heat J (joule) N m eV (electronvolt) power, radiant flux W (watt) J/s var(var), VA(volt ampere) electric charge, amount of electricity C (coulomb) V (volt) W/A capacitance F (farad) C/V electric resistance Ω (ohm) V/A electric conductance S (siemens) A/V magnetic flux Wb (weber) V s magnetic flux density T (tesla) Wb/m 2 inductance H (henry) Wb/A Celsius temperature o C (degree Celsius) luminous flux lm (lumen) cd sr illuminance lx (lux) lm/m 2 activity referred to a radionuclide Bq (becquerel) Gy (gray) J/kg Sv (sievert) J/kg catalytic activity kat (katal) Table-D. Examples of SI coherent derived units whose names and symbols include SI coherent derived units with special names and symbols Non-SI units accepted for use with the SI Non-SI units accepted in Japanese Measurement ACT dynamic viscosity Pa s (pascal second) P(poise) moment of force N m (newton metre) surface tension N/m (newton per metre) angular velocity rad/s (radian per second) angular acceleration rad/s 2 (radian per second squared) heat flux density, irradiance W/m 2 (watt per square metre) heat capacity, entropy J/K (joule per kelvin) specific heat capacity, specific entropy J/(kg K) (joule per kilogram kelvin) specific energy J/kg (joule per kilogram) thermal conductivity W/(m K) (watt per metre kelvin) energy density J/m 3 (joule per cubic metre) electric field strength V/m (volt per metre) electric charge density C/m 3 (coulomb per cubic metre) surface charge density C/m 2 (coulomb per square metre) electric flux density, electric displacement C/m 2 (coulomb per square metre) permittivity F/m (farad per metre) permeability H/m (henry per metre) molar energy J/mol (joule per mole J/mol) molar entropy, molar heat capacity J/(mol K) (joule per mole kelvin) exposure (x- and γ-rays) C/kg (coulomb per kilogram) absorbed dose rate Gy/s (gray per second) radiant intensity W/sr (watt per steradian) radiance W/(m 2 sr) (watt per square metre steradian) catalytic activity concentration kat/m 3 (katal per cubic metre) Table-E. Others Non-SI units accepted for use with the SI Non-SI units accepted in Japanese Measurement ACT kinematic viscosity St(stokes） logarithmic ratio quantities dB(decibel） potential Hydrogen pH(ph) For detail, refer to "SI brochure -8th Edition-" at the BIPM website (www.bipm.org). mass SI units Name Name SI units electric potential difference, electromotive force absorbed dose, specific energy (imparted), kerma kg (kilogram) Name SI units Name SI units Non-SI units accepted for use with the SI Non-SI units accepted in Japanese Measurement ACT dose equivalent, ambient dose equivalent, directional dose equivalent, personal dose equivalent t (tonne), Da (dalton), u (unified atomic mass unit)
description
Unidades Sistema Internacional.Listado de unidades bases y derivadas. Unidades alternativas.
Transcript of SI_Unit_E
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Table of SI unitsTable-A. SI base units SI prefixesName Non-SI unitsaccepted for use with the SI
Non-SI unitsaccepted in Japanese Measurement ACT Factor Name Symbol
length m (metre) ua (astronomical unit) 1024 yotta Z1021 zetta Y1018 exa E
time s (second) min (minute), h (hour), d (day) 1015 peta Pelectric A (ampere) 1012 tera Tthermodynamic temperature K (kelvin) 109 giga Gamount of substance mol (mole) 106 mega Mluminous intensity cd (candela) 103 kilo k
102 hecto hTable-B. Examples of coherent derived units in the SI expressed in terms of base units 10 deca da
110-1 deci d
area m2 (metre) ha (hectare) 10-2 centi cvolume m3 (cubic metre) l, L (litre) 10-3 milli mspeed, velocity m/s (metre per second) 10-6 micro acceleration m/s2 (metre per second squared) 10-9 nano nwavenumber m-1 (reciprocal metre) 10-12 pico pdensity, mass density kg/m3 (kilogram per cubic metre) 10-15 femto fsurface density kg/m2 (kilogram per square metre) 10-18 atto aspecific volume m3/kg (cubic metre per kilogram) 10-21 zepto zcurrent density A/m2 (ampere per square metre) 10-24 yocto ymagnetic field strength A/m (ampere per metre)amount concentration, concentration mol/m3 (mole per cubic metre) %vol%(volume parts per cent), *1)mass concentration kg/m3 (kilogram per cubic metre) %wt%(weight parts per cent), *1)luminance cd/m2 (candela per square metre)refractive index 1 (one) relative permeability 1 (one)
*1) (parts per thouzand), ppm(parts per million), ppb(parts per billion), ppt(parts per trillion), ppq(parts per quadrollion)
Table-C. Coherent derived units in the SI with special names and special names and symbolsSI units Expressed in terms ofother SI units
Non-SI unitsaccepted for use with the SI
Non-SI unitsaccepted in Japanese Measurement ACT
plane angle rad (radian) 1 o (degree), ' (minute), " (second)solid angle sr (steradian) 1frequency Hz (hertz) rpm(revolution per minute),force N (newton)pressure, stress Pa (pascal) N/m2 atm(atmosphere, Torr(torr)energy, work, amount of heat J (joule) N m eV (electronvolt)power, radiant flux W (watt) J/s var(var), VA(volt ampere)electric charge, amount of electricity C (coulomb)
V (volt) W/A
capacitance F (farad) C/Velectric resistance (ohm) V/Aelectric conductance S (siemens) A/Vmagnetic flux Wb (weber) V smagnetic flux density T (tesla) Wb/m2inductance H (henry) Wb/ACelsius temperature oC (degree Celsius)luminous flux lm (lumen) cd srilluminance lx (lux) lm/m2activity referred to a radionuclide Bq (becquerel)
Gy (gray) J/kg
Sv (sievert) J/kg
catalytic activity kat (katal)
Table-D. Examples of SI coherent derived units whose names and symbols include SI coherent derived units with special names and symbols
Non-SI unitsaccepted for use with the SI
Non-SI unitsaccepted in Japanese Measurement ACT
dynamic viscosity Pa s (pascal second) P(poise)moment of force N m (newton metre) surface tension N/m (newton per metre)angular velocity rad/s (radian per second)angular acceleration rad/s2 (radian per second squared)heat flux density, irradiance W/m2 (watt per square metre)heat capacity, entropy J/K (joule per kelvin)specific heat capacity, specific entropy J/(kg K) (joule per kilogram kelvin)specific energy J/kg (joule per kilogram)thermal conductivity W/(m K) (watt per metre kelvin)energy density J/m3 (joule per cubic metre)electric field strength V/m (volt per metre)electric charge density C/m3 (coulomb per cubic metre)surface charge density C/m2 (coulomb per square metre)electric flux density, electric displacement C/m2 (coulomb per square metre)permittivity F/m (farad per metre)permeability H/m (henry per metre)molar energy J/mol (joule per mole J/mol)molar entropy, molar heat capacity J/(mol K) (joule per mole kelvin)exposure (x- and -rays) C/kg (coulomb per kilogram)absorbed dose rate Gy/s (gray per second)radiant intensity W/sr (watt per steradian)radiance W/(m2 sr) (watt per square metre steradian)catalytic activity concentration kat/m3 (katal per cubic metre)
Table-E. OthersNon-SI units
accepted for use with the SINon-SI units
accepted in Japanese Measurement ACTkinematic viscosity St(stokeslogarithmic ratio quantities dB(decibelpotential Hydrogen pH(ph)
For detail, refer to "SI brochure -8th Edition-" at the BIPM website (www.bipm.org).
mass
SI unitsName
Name
SI units
electric potential difference,electromotive force
absorbed dose, specific energy (imparted),kerma
kg (kilogram)
Name SI units
Name SI units Non-SI unitsaccepted for use with the SINon-SI units
accepted in Japanese Measurement ACT
dose equivalent, ambient dose equivalent,directional dose equivalent,personal dose equivalent
t (tonne), Da (dalton),u (unified atomic mass unit)
