Electrodes, e.g. test electrodes; Half-cells (G01N27/414 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Electrodes, e.g. test electrodes; Half-cells

CPC: Electrodes, e.g. test electrodes; Half-cells (G01N27/414 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Investigating or analysing materials by the use of electric, electrochemical, or magnetic means > by investigating electrochemical variables; by using electrolysis or electrophoresis > Electrolytic cell components > Electrodes, e.g. test electrodes; Half-cells

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 electrochemical variables; by using electrolysis or electrophoresis > Electrolytic cell components > Electrodes, e.g. test electrodes; Half-cells (G01N27/414 takes precedence)

Of 13 combined children, 7 exist in both systems.

6 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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G01N 27/301 CPC only CPC only
G01N 27/302 CPC only CPC only
G01N 27/304 CPC only CPC only
G01N 27/305 CPC only CPC only
G01N 27/307 CPC only CPC only
G01N 27/308 CPC only CPC only
G01N 27/31 Half-cells with permeable membranes, e.g. semi-porous or perm-selective membranes since 1990 IPC+CPC Available in IPC and CPC
G01N 27/32 Calomel electrodes IPC+CPC Available in IPC and CPC
G01N 27/327 Biochemical electrodes since 1990 +2 CPC IPC+CPC Available in IPC and CPC
G01N 27/333 Ion-selective electrodes or membranes (glass electrodes G01N27/36) since 1990 +1 CPC IPC+CPC Available in IPC and CPC
G01N 27/34 Dropping-mercury electrodes IPC+CPC Available in IPC and CPC
G01N 27/36 Glass electrodes IPC+CPC Available in IPC and CPC
G01N 27/38 Cleaning of electrodes IPC+CPC Available in IPC and CPC