D2668 Standard Test Method for 2,6-<i>di-tert</i>-Butyl-<i> p</i>-Cresol and 2,6-<ital>di-tert</ital>-Butyl Phenol in Electrical Insulating Oil by Infrared Absorption

2. Referenced Documents

D923 Practices for Sampling Electrical Insulating Liquids
D2144 Practices for Examination of Electrical Insulating Oils by Infrared Absorption
D3487 Specification for Mineral Insulating Oil Used in Electrical Apparatus