Microgram
| Microgram | |
|---|---|
folic acid in micrograms | |
| General information | |
| Unit system | SI |
| Unit of | mass |
| Symbol | μg |
In the
unit of mass equal to one millionth (1×10−6) of a gram. The unit symbol is μg according to the International System of Units (SI); the recommended symbol in the United States and United Kingdom when communicating medical information is mcg. In μg, the prefix symbol for micro- is the Greek letter μ (mu)
.
Abbreviation and symbol confusion
When the Greek lowercase "μ" (mu) is typographically unavailable, it is occasionally – although not properly – replaced by the Latin lowercase "u".
The United States-based
centimetre–gram–second system of units
unit of measure known as millicentigram, which is equal to 10 μg.
Gamma (symbol:
A
fullwidth version of the "microgram" symbol is encoded by Unicode at code point U+338D ㎍ SQUARE MU G for use in CJK contexts.[3] In other contexts, a sequence of the Greek letter mu
(U+03BC) and Latin letter g (U+0067) should be used.
See also
- List of SI prefixes
- Orders of magnitude (mass), listing a few items that have a mass of around 1 μg.
References
- ^ "ISMP's List of Error-Prone Abbreviations, Symbols, and Dose Designations". ISMP. Retrieved 2018-03-28.
- ^ NIST Handbook 133 - 2018, Appendix E. General Tables of Units of Measurement, page 159 (17)
- ^ Unicode Consortium (2019). "The Unicode Standard 12.0 – CJK Compatibility ❰ Range: 3300—33FF ❱" (PDF). Unicode.org. Retrieved May 24, 2019.