Historical
ANSI/ASHRAE Standard 28-1996 (R2010)
Methods of Testing Flow Capacity of Refrigerant Capillary Tubes
Prescribes two test methods, a traditional method and an alternative method, for determining the flow capacity of capillary tubes such as are used for refrigerant metering in refrigeration systems.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]