of flowmeters

Introduced: January 2022

Full Title

Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume > of flowmeters

CPC subdivides this area 6x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

IPC defines codes here since 2022.

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G01F 25/11 CPC only CPC only
G01F 25/12 CPC only CPC only
G01F 25/13 CPC only CPC only
G01F 25/14 CPC only CPC only
G01F 25/15 CPC only CPC only
G01F 25/17 using calibrated reservoirs since 2022 IPC+CPC Available in IPC and CPC