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IEVref:112-01-07ID:
Language:enStatus: Standard
Term: system of quantities
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Definition: set of quantities together with a set of non-contradictory equations relating those quantities

NOTE – Ordinal quantities, such as Rockwell C hardness, are usually not considered to be part of a system of quantities because they are related to other quantities through empirical relations only. Nominal properties, such as colour of light, are not quantities and hence are not part of a system of quantities.


Publication date:2010-01
Source:ISO/IEC GUIDE 99:2007 1.3
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