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ISO 6914

Rubber, vulcanized or thermoplastic — Determination of ageing characteristics by measurement of stress relaxation in tension

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Organization: ISO
Publication Date: 1 February 2021
Status: active
Page Count: 18
ICS Code (Rubber): 83.060
scope:

This document 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.

- 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.

Measurements at a single elevated ageing temperature can be used for quality control purposes as a measure of heat-ageing resistance. Measurements at a number of temperatures can be used for research and development purposes to estimate long-term ageing characteristics in accordance with the procedures described in ISO 11346.

Tests under continuous and intermittent strain conditions measure the results of different processes, and hence do not give the same results. The results of the intermittent methods B and C also cannot be expected to be the same as they use different test conditions.

Document History

ISO 6914
February 1, 2021
Rubber, vulcanized or thermoplastic — Determination of ageing characteristics by measurement of stress relaxation in tension
This document 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. —...
December 1, 2013
Rubber, vulcanized or thermoplastic - Determination of ageing characteristics by measurement of stress relaxation in tension
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 a...
September 1, 2008
Rubber, vulcanized or thermoplastic — Determination of ageing characteristics by measurement of stress relaxation in tension
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 a...
April 1, 2004
Rubber, vulcanized or thermoplastic Determination of ageing characteristics by measurement of stress relaxation
A description is not available for this item.
April 15, 1985
Rubber, Vulcanized - Determination of Ageing Characteristics by Measurement of Stress at a Given Elongation
A description is not available for this item.

References

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