标准编号：ISO 6914:2008
中文名称：硫化橡胶或热塑性橡胶 在张紧状态中通过应力松驰的测量来测定老化特性
英文名称：Rubber, vulcanized or thermoplastic — Determination of ageing characteristics by measurement of stress relaxation in tension
发布日期：2008-09
标准范围
This International Standard describes three methods for the measurement of the change of stress in a testpiece 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 ofageing.-- Method C is an alternative to method B for measurement under intermittent strain conditions in which thetest piece is removed from the ageing environment for measurement of the stress at standard laboratorytemperature.The necessary calibration schedule for this type of measurement is given in Annex A.Measurements at a single elevated ageing temperature can be used for quality control purposes as a measureof heat-ageing resistance. Measurements at a number of temperatures can be used for research anddevelopment purposes to estimate long-term ageing characteristics in accordance with the proceduresdescribed in ISO 11346.No agreement between the three methods should be inferred. The method used will depend on the purpose ofthe test.
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