Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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25/00
Investigating or analyzing materials by the use of thermal means
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G01N25/20
by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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G01N25/22
on combustion or catalytic oxidation, e.g. of components of gas mixtures
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G01N25/44
the heat developed being transferred to a fixed quantity of fluid
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G01N25/46
for investigating the composition of gas mixtures
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