Historical
ANSI/ASHRAE Standard 172-2017
Method of Test for Insoluble Materials in Synthetic Lubricants and HFC Refrigerant Systems
The purpose of this standard is to define a test method to determine the formation of insoluble materials in synthetic lubricants and hydrofluorocarbon (HFC) systems
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]
