IPC Subgroup
G01K 11/14 of inorganic materials
Introduced: September 1968
Last revised: January 2006
Full Title
Measuring temperature based on physical or chemical changes not covered by group , , , or > using changes in colour, translucency or reflectance > of inorganic materials
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR