What is ISO 6521-3- Specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG about?
ISO 6521-3 specifies the minimum requirements for mineral or synthetic based lubricants intended for use in all types of refrigerating compressors.
Who is ISO 6521-3- Specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG for?
ISO 65213 on specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG is useful for:
- Oil and lubricants industry
- Manufacturers of compressor
- Refrigerating industry
Why should you use ISO 6521-3- Specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG?
Lubricants for refrigerating compressors are used in a large variety of environments, mainly with respect to the refrigerant used. ISO 6521-3 covers the lubricants used in refrigerating compressors, in which the lubricant is in contact with the refrigerant that is compressed.
There is a distinction between lubricants that are miscible and those that are not miscible in the refrigerant. The lubricants for these applications can vary in composition, from straight mineral oils to more complex blends, based on mineral oils, synthetic oils (e.g., poly α-olefins, esters, poly-glycols), and additives.
Specifications of categories of DRA, DRB, DRC, DRD, DRE, DRF and DRG as enlisted in ISO 6521-3 are helpful for improving efficiency of compressor used in the refrigerating systems.
