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PCE
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DIFF Subgroup
G01F 1/86

Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure

Introduced: July 1974

Title

Titles differ between systems:

IPC: Indirect mass flowmeters, e.g. measuring volume flow and density, temperature, or pressure

CPC: Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure

Full Title

Full titles differ between systems:

IPC:

Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow > Devices for measuring mass flow of a fluid or a fluent solid material > Indirect mass flowmeters, e.g. measuring volume flow and density, temperature, or pressure

CPC:

Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow (measuring a proportion of the volume flow G01F5/00) > Devices for measuring mass flow of a fluid or a fluent solid material > Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1974.

Child Classifications

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  • G01F 1/88 with differential-pressure measurement to determine the volume flow since 1974 IPC+CPC Available in IPC and CPC
  • G01F 1/90 with positive-displacement meter or turbine meter to determine the volume flow since 1974 IPC+CPC Available in IPC and CPC