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Giorgi International System of Measurement
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Giorgi International System of Measurement

measurement
Also known as: MKS system, metre-kilogram-second system, mks set

Learn about this topic in these articles:

Giorgi’s contributions

  • In Giovanni Giorgi

    …best known for developing the Giorgi International System of Measurement (also known as the MKSA system) in 1901. This system proposed as units of scientific measurement the metre, kilogram, second, and joule and was endorsed in 1960 by the General Conference of Weights and Measures (with the ampere instead of…

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International System of Units

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International Unit

unit of measurement
Also known as: IU
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Article History

International Unit (IU), in pharmacology, quantity of a substance, such as a vitamin, hormone, or toxin, that produces a specified effect when tested according to an internationally accepted biological procedure. For certain substances, the IU has been identified with a weight of a particular purified form of the material; for example, one gram of vitamin A acetate contains 2.904 × 106 IU. For international units of physical quantities, such as mass, length, etc., see International System of Units.