IPC Subgroup
G01N 27/83 by investigating stray magnetic fields
Introduced: January 1980
Last revised: January 2006
Full Title
Investigating or analysing materials by the use of electric, electrochemical, or magnetic means > by investigating magnetic variables > for investigating the presence of flaws > by investigating stray magnetic fields
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3 direct subcodes
Child Classifications
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- G01N 27/84 by applying magnetic powder or magnetic ink
- G01N 27/85 using magnetographic methods
- G01N 27/87 using probes