dimension-one composition fraction · SI / chemistry / materials · Modern standardized
Mass fraction is component mass divided by total mixture mass.
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dimension-one composition fraction · SI / chemistry / gas/liquid mixtures · Modern standardized
volume fraction
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Definition
Volume fraction expresses a component's volume contribution as a fraction of the mixture under a defined convention.
History & use
NIST treats volume fraction as distinct from mass fraction and amount fraction.
Modern use
Modern use is context-dependent and varies by region or measurement system.
Sources & evidence
Source tier — · confidence high
Related measurements
dimension-one composition fraction · SI / chemistry · Modern standardized
Amount fraction, often called mole fraction, is the amount of substance of a component divided by total amount of substance.
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