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ISO 6521-3:2019

Lubricants, industrial oils and related products (Class L) — Family D (compressors) — Part 3: Specifications of categories DRA, DRB, DRC, DRD, DRE, DRF and DRG (lubricants for refrigerating compressors)

Oct 1, 2019

General information

90.93     Jun 25, 2025

ISO

ISO/TC 28/SC 4

International Standard

75.100  

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Published

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Scope

This document specifies the minimum requirements for mineral or synthetic based lubricants intended for use in all types of refrigerating compressors.
NOTE This document can be read in conjunction with ISO 6743-3.

Life cycle

NOW

PUBLISHED
ISO 6521-3:2019
90.93 Standard confirmed
Jun 25, 2025