标准号：ISO 6914-2004
实施状态：作废
中文名称：硫化或热固性橡胶.用应力松弛测量法测定老化特性
英文名称：Rubber, vulcanized or thermoplastic - Determination of ageing characteristics by measurement of stress relaxation
发布日期：2004-04
被替代标准：ISO 6914-2008
代替标准：ISO 6914-1985;ISO/FDIS 6914-2003
采用标准：T46-081PR,IDT
起草单位：ISO/TC 45
标准简介：This International Standard 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 the rubber vulcanizate.
— 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 the standard laboratory temperature.
The necessary calibration schedule for this type of measurement is given in Annex A.
Measurements at a single elevated ageing temperature may be used for quality control purposes as a measure of heat-ageing resistance. Measurements at a number of temperatures may be used for research and development purposes to estimate long-term ageing characteristics in accordance with the procedures described in ISO 11346.
No agreement between the three methods should be inferred. The method used will depend on the purpose of the test.
文件格式：PDF
文件大小：249.17KB
文件页数：16
（以上信息更新时间为：2019-11-22）
ISO 6914-2004 硫化或热固性橡胶.用应力松弛测量法测定老化特性.pdf
(249.17 KB)
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