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ISO 6914:2013
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ISO 6914:2013 Rubber, vulcanized or thermoplastic - Determination of ageing characteristics by measurement of stress relaxation in tension
standard by International Organization for Standardization, 12/01/2013
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Full Description
ISO 6914:2013 describes three methods for the measurement of the change of stress in a test piece at a given elongation for the purpose of determining the ageing characteristics of a rubber.
Method A is intended for measurement under continuous strain conditions. Method B is the preferred method for measurement under intermittent strain conditions.In the case of both methods A and B, a stress relaxometer is used to record the stress at the temperature of ageing.
Method C is an alternative to method B for measurement under intermittent strain conditions in which the test piece is removed from the ageing environment for measurement of the stress at standard laboratory temperature.