Standard 172-2017 -- Method of Test for Insoluble Materials in Synthetic Lubricants and HFC Refrigerant Systems (ANSI Approved)
标准172-2017——合成润滑剂和HFC制冷剂系统中不溶性物质的试验方法(ANSI批准)
ASHRAE Standard 172 defines a test method to determine the formation of insoluble materials in synthetic lubricants and hydrofluorocarbon (HFC) systems, the results of which can be used to compare lubricants and refrigerants.