IPC Subgroup
G01N 21/75 Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
Introduced: January 1980
Last revised: January 2006
Full Title
Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light > Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G01N 21/76 Chemiluminescence; Bioluminescence
- G01N 21/77 by observing the effect on a chemical indicator