/usr/share/xml/udunits/udunits2-derived.xml is in libudunits2-0 2.2.20-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 | <?xml version="1.0" encoding="US-ASCII"?>
<!--
Copyright 2008, 2009 University Corporation for Atmospheric Research
This file is part of the UDUNITS-2 package. See the file COPYRIGHT
in the top-level source-directory of the package for copying and
redistribution conditions.
SI derived units with special names and symbols
-->
<unit-system>
<unit>
<comment>SI derived unit</comment>
<dimensionless/>
<name><singular>radian</singular></name>
<symbol>rad</symbol>
<definition>standard unit of angular measure, an angle that creates an arc in a circle equal in length to that circle's radius (roughly 57.3 degrees); as a ratio of two lengths, it has no dimension</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>rad^2</def>
<name><singular>steradian</singular></name>
<symbol>sr</symbol>
<definition>standard unit of solid angle measure, it is the solid angle which cuts out an area on a sphere that is the square of the sphere's radius; as a ratio of two areas, it has no dimension</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>1/s</def>
<name><singular>hertz</singular></name>
<symbol>Hz</symbol>
<definition>unit of frequency meaning one cycle per second</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>1e-3 kg</def>
<name><singular>gram</singular></name>
<symbol>g</symbol>
<definition>unit of mass equal to one thousandth of a kilogram</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>m.kg/s^2</def>
<name><singular>newton</singular></name>
<symbol>N</symbol>
<definition>unit of force; the amount needed to accelerate 1 kilogram of mass at the rate of 1 metre per second squared</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>N/m^2</def>
<name><singular>pascal</singular></name>
<symbol>Pa</symbol>
<definition>unit of pressure (force per unit area) equal to one newton per square meter</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>N.m</def>
<name><singular>joule</singular></name>
<symbol>J</symbol>
<definition>standard unit of work or energy, equal to the work done by a force of one newton acting along a distance of one meter</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>J/s</def>
<name><singular>watt</singular></name>
<symbol>W</symbol>
<definition>standard unit of power, equivalent to one joule per second, and equal to one ampere flowing across a potential difference of one volt</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>s.A</def>
<name><singular>coulomb</singular></name>
<symbol>C</symbol>
<definition>standard unit of electric charge, the quantity of electricity transported in one second by a current of one ampere</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>W/A</def>
<name><singular>volt</singular></name>
<symbol>V</symbol>
<definition>standard unit of electric potential difference (and electromotive force); the difference of potential between two points of a conductor carrying a constant current of one ampere and dissipating one watt of power</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>C/V</def>
<name><singular>farad</singular></name>
<symbol>F</symbol>
<definition>standard unit of capacitance; the amount which, when a capacitor is charged to a potential difference of one volt, carries a charge of one coulomb</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>V/A</def>
<name><singular>ohm</singular></name>
<symbol comment="Greek capital letter omega (preferred)">Ω</symbol>
<aliases>
<symbol comment="OHM SIGN">Ω</symbol>
</aliases>
<definition>standard unit of electrical resistance; the resistance between two points of a conductor when a constant potential difference of 1.0 volt, applied to these points, produces in the conductor a current of 1.0 ampere</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>A/V</def>
<name> <singular>siemens</singular> </name>
<symbol>S</symbol>
<definition>unit of electric conductance; the reciprocal of one ohm</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>V.s</def>
<name><singular>weber</singular></name>
<symbol>Wb</symbol>
<definition>unit of magnetic flux (product of the average magnetic field times the perpendicular area that it penetrates), expressed as volt-seconds</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>Wb/m^2</def>
<name><singular>tesla</singular></name>
<symbol>T</symbol>
<definition>unit of flux density, equal to one weber per square meter</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>Wb/A</def>
<name><singular>henry</singular></name>
<symbol>H</symbol>
<definition>unit of inductance; where a circuit's current changes at a constant rate of 1 ampere per second, results in a generation of 1 V of potential difference</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>K @ 273.15</def>
<name>
<singular>degree_Celsius</singular>
<plural>degrees_Celsius</plural>
</name>
<symbol comment="DEGREE SIGN">°C</symbol>
<definition>unit (and scale) of temperature, with same magnitude as the kelvin and a zero-point offset of 273.15</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>cd.sr</def>
<name><singular>lumen</singular></name>
<symbol>lm</symbol>
<definition>unit of luminous flux, a measure of the total "amount" of visible light emitted by a source; one candela-steradian</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>lm/m^2</def>
<name><singular>lux</singular></name>
<symbol>lx</symbol>
<definition>unit of illuminance and luminous emittance, measuring luminous flux per unit area, and used as a measure of intensity of light; equal to one lumen per square meter</definition>
</unit>
<unit>
<comment>SI derived unit</comment>
<def>mol/s</def>
<name><singular>katal</singular></name>
<symbol>kat</symbol>
<definition>unit of catalytic activity (property of a catalyst, such as an enzyme); expresses the ability to break 1 mole of bonds per second under specified conditions</definition>
</unit>
<!-- SI derived units with special names and symbols admitted for
reasons of safeguarding human health -->
<unit>
<comment>SI derived unit with special names/symbols admitted for reasons of safeguarding human health</comment>
<def>1/s</def>
<aliases>
<name comment="Is an alias because '1/s' is already mapped to 'hertz' and 'Hz'"><singular>becquerel</singular></name>
<symbol comment="Is an alias because '1/s' is already mapped to 'hertz' and 'Hz'">Bq</symbol>
</aliases>
<definition>unit of radioactivity; the activity of a quantity of material in which one nucleus decays per second (hence, equivalent to one unit per second)</definition>
</unit>
<unit>
<comment>SI derived unit with special names/symbols admitted for reasons of safeguarding human health</comment>
<def>J/kg</def>
<name><singular>gray</singular></name>
<symbol>Gy</symbol>
<definition>unit of ionizing radiation, a measure of the absorbed dose of radiation; absorption of one joule of radiation energy by one kilogram of matter</definition>
</unit>
<unit>
<comment>SI derived unit with special names/symbols admitted for reasons of safeguarding human health</comment>
<def>J/kg</def>
<aliases>
<name><singular>sievert</singular></name>
<symbol>Sv</symbol>
</aliases>
<definition>unit of ionizing radiation dose, measuring the health effect of low levels of ionizing radiation on the human body</definition>
</unit>
</unit-system>
|