Template talk:SI special units

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[edit] Standard order

I changed the representation of the base units to conform with NIST recommendations, so that dimensions are always represented in a cannonical form in standard order, as follows:

mα · kgβ · sγ · Aδ · Kε · molζ · cdη

Obviously, if any of the dimensional exponents (α, β, γ, ...) are zero, the dimension is simply the number 1, and is omitted.

--Jeepien 04:24:35, 2005-08-22 (UTC)

[edit] Removed from SI derived units

I have removed the following section from SI derived units and replaced it (in part) with this template. However, this involved a slight loss of information. I suggest the lost info be added to this template. Jimp 14Oct05

[edit] Units with special names and symbols

Physical quantity Name of SI unit Symbol Expression in terms
of other units		 Expression in terms
of SI base units
plane angle radian rad 1 m·m-1
solid angle steradian sr 1 m2·m-2
frequency hertz Hz s-1
force, weight newton N kg·m·s-2
pressure, stress pascal Pa N·m-2 kg·m-1·s-2
energy, work, heat joule J N·m kg·m2·s-2
power, radiant flux watt W J·s-1 kg·m2·s-3
electric charge coulomb C A·s
electric potential, electromotive force volt V J·C-1 kg·m2·s-3·A-1
electric capacitance farad F C·V-1 kg-1·m-2·s4·A2
electrical resistance, impedance, reactance ohm Ω V·A-1 kg·m2·s-3·A-2
electric conductance siemens S A·V-1 kg-1·m-2·s3·A2
magnetic flux weber Wb V·s kg·m2·s-2·A-1
magnetic flux density, magnetic inductivity tesla T V·s·m-2 kg·s-2·A-1
inductance henry H V·s·A-1 kg·m2·s-2·A-2
temperature degree Celsius °C 1 °C = 1 K, t°C = tK - 273.15
luminous flux lumen lm cd·sr cd
illuminance lux lx cd·sr·m-2 cd·m-2
activity (radioactive) becquerel Bq s-1
absorbed dose (of radiation) gray Gy J·kg-1 m2·s-2
dose equivalent (dose equivalent index) sievert Sv Gy m2·s-2
catalytic activity katal kat mol·s-1