DIFF Subgroup
A61L 2/20 Gaseous substances, e.g. vapours
Introduced: January 1980
Full Title
Disinfection or sterilisation of materials or objects, in general; Accessories therefor > using chemical substances > Gaseous substances, e.g. vapours
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
IPC defines codes here since 2026.
Child Classifications
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