IPC Subgroup
G01N 1/34 Purifying; Cleaning
Introduced: September 1968
Last revised: January 2006
Full Title
Sampling; Preparing specimens for investigation > Preparing specimens for investigation > Purifying; Cleaning
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES