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ISO 2921 5th Edition, October 15, 2011
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Rubber, vulcanized — Determination of low-temperature retraction (TR test)
Additional Comments: ENGLISH
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This International Standard specifies a method for the determination of the temperature-retraction characteristics of stretched vulcanized rubber.

This International Standard does not cover thermoplastic rubbers, as many thermoplastic elastomers have a yield point in the range of 5 % to 20 % elongation. This fact might affect the result when carrying out TR tests on thermoplastic rubbers, and the results obtained from such tests should be analysed with caution.