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PCE
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DIFF Subgroup
G01N 27/72

by investigating magnetic variables

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means > by investigating magnetic variables

CPC:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means (G01N3/00 – G01N25/00 take precedence; measurement or testing of electric or magnetic variables or of electric or magnetic properties of materials G01R) > by investigating magnetic variables

Of 4 combined children, 3 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • G01N 27/725 CPC only CPC only
  • G01N 27/80 for investigating mechanical hardness, e.g. by investigating saturation or remanence of ferromagnetic material IPC+CPC Available in IPC and CPC