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GME GME 60255 Document Information:
Title
Resistance of Elastomers to Liquids and Greases
Beständigkeit von Elastomeren gegen Flüssigkeiten und Fette
General Motors Europe
Publication Date:
Jul 8, 2009
Scope:
The object of this test method is the determination of the
effect of liquids and greases on elastomers, by comparison of the
values of specified properties before and after exposure to test
media.
The test medium used may alter the properties of the elastomer
by one or more of the following effects:
Absorption of the test medium by the elastomer.
Extraction by the test medium of soluble components of the
elastomer.
Chemical reaction of the test medium with the elastomer.
The test media used for this test shall be strictly defined
standard substances, or materials which are used in service in
contact with the elastomer. In order to evaluate the resistance of
an elastomer to liquids and greases, one or more of the following
properties shall be determined before and after exposure to the
test medium, and the change in that property found:
Volume to GME 60249.
Mass.
Dimensions, e.g. thickness of test piece.
Hardness, to GME 60252 or GME 60256.
Tensile strength and/or elongation at break to GME 60257.
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