Standard: GME 60256
DETERMINATION OF BALL-INDENTATION HARDNESS OF ELASTOMERS (IRHD) - MICRO HARDNESS TEST
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The object of this test method is the accurate determination of the hardness of elastomers, between 35 and 98 International Rubber Hardness Degrees (IRHD) by a ball indentation method. It permits accurate and reproducible hardness determinations to be made on test pieces of small dimensions, e.g. lip seals or O- rings.
Three methods of test piece preparation are described in clause 3 which ensure (applicable to method A according to clause 220.127.116.11 or to method C according to clause 18.104.22.168) reproducibility of the measured hardness value.
|Organization:||General Motors Europe|
|Document Number:||gme 60256|
|Most Recent Revision:||YES|
|Document #||Change Type||Update Date||Revision||Status|
|GME 60256||Change Type:||Update Date: 1984-01-31||Revision: 84||Status: INAC|
This Standard References
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