Company Writer's Guide
Symbols for Units in General Use (Cont’d)
Unit | Symbol | Notes |
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gigaelectronvolt | GeV |
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gigahertz | GHz |
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gilbert | Gb | The gilbert is the electromagnetic CGS unit of |
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| magnetomotive force. Deprecated |
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| (see ANSI |
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grain | gr |
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gram | g |
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gram per cubic centimeter | g/cm3 |
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gray | Gy | SI unit of absorbed dose in the field of radiation |
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| dosimetry. |
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hecto | h | SI prefix for 102. |
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henry | H | SI unit of inductance. |
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hertz | Hz | SI unit of frequency. |
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horsepower | hp | The horsepower is an anachronism in science |
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| and technology. Use of the SI unit of power, the |
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| watt, is preferred. |
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hour | h |
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inch | in. |
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conventional inch of | inHg | 1 inHg = 3386.4 Pa (ISO) |
mercury |
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conventional inch of | inH2O | 1 inH2O = 249.09 Pa (ISO) |
water |
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inch per second | in/s |
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joule | J | SI unit of energy, work, quantity of heat. |
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joule per kelvin | J/K | SI unit of heat capacity and entropy. |
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kelvin | K | In 1967, the CGPM gave the name kelvin to the SI |
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| unit of temperature which had formerly been |
[For Illustration Only] |