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ASTM D4048-10

Historical Revision

Standard Test Method for Detection of Copper Corrosion from Lubricating Grease

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1.1 This test method covers the detection of the corrosiveness to copper of lubricating grease.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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 and heal practices and determine the applicability of regulatory limitations prior to use.For specific warning statements, see Sections 7, 8, and 10.

This test method measures the tendency of lubricating grease to corrode copper under specific static conditions. It may be of some value in predicting possible chemical attack on lubricated parts, such as bearings that contain copper or copper alloys. Such corrosion, for example, can cause premature bearing failures. However, no correlations with actual field service, most of which are under dynamic conditions, have been established. It does not measure either the ability of the lubricant to inhibit copper corrosion caused by factors other than the lubricant itself nor does it measure the stability of the grease in the presence of copper.

SDO ASTM: ASTM International
Document Number D4048
Publication Date May 1, 2010
Language en - English
Page Count 4
Revision Level 10
Supercedes
Committee D02.G0.01
Publish Date Document Id Type View
Aug. 15, 2022 D4048-22 Revision
July 1, 2019 D4048-19A Revision
June 1, 2019 D4048-19 Revision
Dec. 1, 2016 D4048-16E01 Revision
Dec. 1, 2016 D4048-16 Revision
May 1, 2010 D4048-10 Revision
April 10, 2002 D4048-02 Revision
Jan. 1, 1997 D4048-97 Revision
May 1, 2008 D4048-02R08 Reaffirmation