TEST METHOD FOR EVAPORATION LOSS OF LUBRICATING OILS BY THE NOACK METHOD
This Malaysian Standard covers three procedures for determining the evaporation loss of lubricating oils (particularly engineoils). Procedure A uses the Noack evaporative tester equipment; Procedure B uses the automated non-Woods metal Noackevaporative apparatus; and Procedure C uses Selby-Noack volatility test equipment. The test method relates to one set ofoperating conditions but may be readily adapted to other conditions when required.
Noack results determined using Procedures A and B show consistent differences. Procedure A gives slightly lowerresults versus Procedure B on formulated engine oils, while Procedure A gives higher results versus Procedure B on basestocks.
The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety