Lambda (unit)
Template:Short description Template:Infobox unit Lambda (written λ, in lowercase) is a non-SI unit of volume equal to 10−9 m3, 1 cubic millimetre (mm3) or 1 microlitre (μL). Introduced by the BIPM in 1880,[1] the lambda has been used in chemistry[2] and in law for measuring volume, but its use is not recommended.[3]
This use of λ parallels the pre-SI use of μ on its own for a micrometre and γ for a microgram.[4][5] Although the use of λ is deprecated, some clinical laboratories continue to use it.[6] The standard abbreviation μL for a microlitre has the disadvantage that it can be misread as mL (a unit 1000 times larger). In pharmaceutical use, no abbreviation for a microlitre is considered safe. The recommended practice is to write "microlitre" in full.[7]
References
- ↑ Donald Fenna (2002), A Dictionary of Weights, Measures, and Units, Oxford University Press, Template:ISBN, p. 153.
- ↑ Script error: No such module "citation/CS1".
- ↑ Carl A. Burtis and David E. BrunsTietz (2014), Fundamentals of Clinical Chemistry and Molecular Diagnostics, 7th ed., Elsevier Health Sciences, Template:ISBN, p. 114.
- ↑ Lela Buckingham (2014), Fundamental Laboratory Mathematics: Required Calculations for the Medical Laboratory Professional, F. A. Davis, Template:ISBN, p. 48.
- ↑ I. P. Alimarin and M. N. Petrikova (2013), Inorganic Ultramicroanalysis, Elsevier, Template:ISBN, p. xiv.
- ↑ Barbara H. Estridge, Anna P. Reynolds, and Norma J. Walters (2000), Basic Medical Laboratory Techniques, 4th ed., Cengage Learning, Template:ISBN, p. 32.
- ↑ Chris Langley and Yvonne Perrie (2014), Maths Skills for Pharmacy: Unlocking Pharmaceutical Calculations, Oxford University Press, Template:ISBN, p. 55.