BS 2626:1992

This British Standard specifies requirements for a range of 10 viscosity grades of two types of lubricants that are suitable for the lubrication of compressors for refrigerating systems operated with refrigerants as defined in BS 4434.

NOTE 1 This British Standard does not specify requirements for the compatibility or miscibility of lubricants with refrigerants. However, it is essential that care is taken in the selection of a lubricant/refrigerant combination.

NOTE 2 Appendix A gives explanatory notes on refrigerant compressor lubricants and is for information only.

NOTE 3 The titles of the publications referred to in this standard are listed on the inside back cover.

Requirements for ten viscosity grades of each of two types of lubricant. Type A lubricants being additive free petroleum products, and type B lubricants being additive containing petroleum products or partially or wholly synthetic products.