DIFF Subgroup
G01N 25/56 by investigating moisture content
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Investigating or analysing materials by the use of thermal means > by investigating moisture content
CPC:
Investigating or analyzing materials by the use of thermal means (G01N3/00 - G01N23/00 take precedence) > by investigating moisture content
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G01N 25/58 by measuring changes of properties of the material due to heat, cold or expansion IPC+CPC Available in IPC and CPC
- G01N 25/62 by psychrometric means, e.g. wet-and-dry bulb thermometers IPC+CPC Available in IPC and CPC