CPC Subgroup
G01N 7/18 by allowing the material to react
Full Title
Analysing materials by measuring the pressure or volume of a gas or vapour > by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference > by allowing the material to react
1 direct subcode
Child Classifications
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- G01N 7/20 the reaction being fermentation