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)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Investigating or analysing materials by the use of electric, electrochemical, or magnetic means

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)

Full Title

Full titles differ between systems:

IPC:

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

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)

Of 8 combined children, 6 exist in both systems.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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G01N 27/002 +1 CPC CPC only CPC only
G01N 27/007 CPC only CPC only
G01N 27/02 by investigating impedance +4 CPC IPC+CPC Available in IPC and CPC
G01N 27/26 by investigating electrochemical variables; by using electrolysis or electrophoresis IPC+CPC Available in IPC and CPC
G01N 27/60 by investigating electrostatic variables +1 CPC IPC+CPC Available in IPC and CPC
G01N 27/62 by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode IPC+CPC Available in IPC and CPC
G01N 27/72 by investigating magnetic variables +1 CPC IPC+CPC Available in IPC and CPC
G01N 27/92 by investigating breakdown voltage (G01N27/60, G01N27/62 take precedence) since 1980 IPC+CPC Available in IPC and CPC