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Standard Methods for Refrigerant Volumetric or Mass Flow Measurement Using Flowmeters (ANSI Approved)
Standard 41.10 prescribes methods for refrigerant volumetric or mass flow rate measurement using flowmeters in laboratory and field applications.
The 2024 edition of Standard 41.10 includes supercritical phase refrigerant flow measurements in addition to gaseous phase and liquid phase refrigerant flow measurements, volumetric refrigerant flow measurements in addition to refrigerant mass flow measurements, updated methods for determining when steady-state operation has been achieved for data recording, changes to make it easier for higher tier standards to adopt this standard by reference, and a new uncertainty example prepared in accordance with the latest uncertainty methods. This standard has been updated to meet ASHRAE's mandatory language requirements.
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