in the gaseous state

Introduced: September 1968

Full Title

Sampling; Preparing specimens for investigation > Devices for withdrawing samples > in the gaseous state

CPC subdivides this area 6x more granularly than IPC with 9 additional codes.

9 codes are CPC-only extensions.

Note: 4 CPC extensions are marked as secondary classification only.

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G01N 1/2202 +5 CPC CPC only CPC only
G01N 1/2226 +4 CPC CPC only CPC only
G01N 1/2247 +6 CPC CPC only CPC only
G01N 1/2273 +2 CPC CPC only CPC only
G01N 1/2294 CPC only CPC only
G01N 1/24 Suction devices +5 CPC IPC+CPC Available in IPC and CPC
G01N 1/26 with provision for intake from several spaces IPC+CPC Available in IPC and CPC
G01N 2001/2244 2nd only CPC only CPC only
G01N 2001/2282 2nd only CPC only CPC only
G01N 2001/2285 2nd only +2 CPC CPC only CPC only
G01N 2001/2297 2nd only CPC only CPC only