Company Writer's Guide
Symbols for Units in General Use (Cont’d)
Unit | Symbol |
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exa | E | SI prefix for 1016. | |
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farad | F | SI unit of capacitance. | |
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fem to | f | SI prefix for | |
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femtometer | fm |
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foot | ft |
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conventional foot of water | ftH2O | 1 ftH2O = 2989.1 Pa (ISO) | |
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foot per minute | ft/min |
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foot per second | ft/s |
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foot per second squared | ft/s2 |
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foot |
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footcandle | fc | 1 fc = 1 lm/ft2. The name lumen per square foot is | |
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| also used for this unit. Use of the SI unit of | |
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| illuminance, the lux (lumen per square meter), is | |
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| preferred. | |
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footlambert | fL | 1 fL . 1/Π) cd/ft2. A unit of luminance. One | |
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| lumen per square foot leaves a surface whose | |
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| luminance is one footlambert in all directions | |
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| within a hemisphere. Use of the SI unit, the | |
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| candela per square meter, is preferred. | |
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gal | Gal | 1 Gal = 1 cm/s2 (deprecated, | |
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| see ANSI Z210.1 1976). | |
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gallon | gal | 1 galUK = 4.5461 L | |
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| 1 gal | = 231 in3 = 3.7854 L |
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gauss | G | The gauss is the electromagnetic CGS unit of | |
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| magnetic flux density. Deprecated | |
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| (see ANSI | |
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giga | G | SI prefix for 109. | |
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[For Illustration Only] |