IPC Subgroup
G01N 33/24 Earth materials
Introduced: September 1968
Last revised: January 2006
Full Title
Investigating or analysing materials by specific methods not covered by groups > Earth materials
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES