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ANSI/ASHRAE 41.8-2023
Standard Methods for Liquid Flow Measurement
Prescribes methods for liquid flow measurement. Applies to laboratory and field liquid flow measurement for testing heating, ventilating, air conditioning, and refrigerating systems and components. This standard is restricted to applications where the entire flowstream of liquid enters and exits the liquid flowmeter in a liquid-only state during data recording with the following exception: a. This standard does not apply to liquid-phase refrigerant mass flow measurements where the liquid flow includes circulating lubricant. Those measurements are within the scope of ANSI/ASHRAE Standard 41.101. Dual units of measurement.
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American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]
