IPC Subgroup
C02F 101/38 containing nitrogen
Introduced: January 2000
Last revised: January 2006
Full Title
Nature of the contaminant > Organic compounds > containing nitrogen
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- Subclass:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE