NF ISO 12925-2

Lubricants, industrial oils and related products (class L) - Family C (gears) - Part 2 : specifications of categories CKH, CKJ and CKM (lubricants open and semi-enclosed gear systems)

This document establishes an extended classification which includes sub-categories of environmentally acceptable lubricants and specifies the minimum requirements for mineral or synthetic based lubricants for the categories CKH, CKJ and CKM, according to ISO 6743-6, and their sub-categories of environmentally acceptable lubricants, intended for the lubrication of open and semi-enclosed gears.

This document covers the lubricants applied in the open and semi-enclosed gear systems most currently encountered in the industry. It does not cover the extreme cases of use with regards to temperature and extreme charges conditions.

NOTE 1 For use in exceptional conditions, suppliers and purchasers of lubricants can mutually agree on additional testing methods and acceptability criteria of the products.

NOTE 2 This document can be read in conjunction with ISO 6743-6.

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