Standard 153-2015 -- Method of Test for Mass Flow Capacity of Four-Way Refrigerant Reversing Valves (ANSI Approved)
标准153-2015——四通制冷剂换向阀质量流量的试验方法(ANSI批准)
ASHRAE 153-2021
Standard 153-2021 -- Method of Test for Mass Flow Capacity of Four-Way Refrigerant Reversing Valves (ANSI Approved)
标准153-2021——四通制冷剂换向阀质量流量的试验方法(ANSI批准)