Methods of test for petroleum and its products - Determination of corrosiveness to copper of lubricating grease. Copper strip method

Methods of test for petroleum and its products - Determination of corrosiveness to copper of lubricating grease. Copper strip method

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1   Scope

This standard describes a method for the detection of substances corrosive to copper in lubricating greases under static conditions. It does not correlate with greases operating under dynamic conditions.

NOTE 1 As lubricating greases are employed under a diversity of conditions, it is not possible to specify either the temperature or the duration of the test, but it is recommended that the temperature be not higher than 20 °C below the drop point of the sample.

NOTE 2 In conformity with prevailing practice copper strip has been described as the test metal but other metals may be used and forms other than strips may be used.