ASHRAE STD 41.10
Standard Methods for Refrigerant Flow Measurement Using Flowmeters
|Publication Date:||1 January 2020|
This standard applies to refrigerant mass flow rate measurements in laboratory and field applications where the entire flow stream of the refrigerant enters and exits the flowmeter either as a vapor-only or liquid-only state during data recording.
This standard does not apply to
a. gaseous refrigerant flow rate measurement for refrigerants that are not mixed with lubricant because those measurements are within the scope of ASHRAE Standard 41.7 1 or
b. liquid refrigerant flow rate measurement for refrigerants that are not mixed with lubricant because those measurements are within the scope of ASHRAE Standard 41.8 2.
This standard prescribes methods for refrigerant mass flow rate measurement in laboratory and field applications using flowmeters. Refrigerant mass flow rate measurements are required for compressor performance tests and for testing other heating, ventilating, air-conditioning, and refrigerating systems and components. Each refrigerant mass flow rate is determined by subtracting the measured lubricant mass flow rate from the measured refrigerant/lubrican
1. ASHRAE. 2018. ANSI/ASHRAE Standard 41.7-2015 (RA2018), Standard Methods for Gas Flow Measurement. Atlanta: ASHRAE.
2. ASHRAE. 2019. ANSI/ASHRAE Standard 41.8-2016 (RA2019), Standard Methods for Liquid Flow Measurement. Atlanta: ASHRAE.