AS 1683.9-1992

1 - AS 1683.9-1992 METHODS OF TEST FOR ELASTOMERS - RUBBER, VULCANIZED OR THERMOPLASTIC - DETERMINATION OF TENSION SET AT NORMAL
1 - PREFACE
1 - CONTENTS
2 - 1 Scope
2 - 2 Normative references
2 - 3 Apparatus
2 - 3.1 Straining device
2 - 3.2 Oven
2 - 3.3 Measuring device
2 - 4 Test piece
2 - 4.1 Preparation
2 - 4.1.1 Strip test piece
2 - 4.1.2 Strip test piece with enlarged ends
3 - 4.1.3 Ring test piece
3 - 4.2 Marking
3 - 4.3 Number of test pieces
3 - 4.4 Time-interval between vulcanization and testing
3 - 4.5 Conditioning
3 - 5 Procedure
3 - 6 Strain, duration of test and temperature of test
3 - 6.1 Strain
4 - 6.2 Duration of test
4 - 6.3 Temperature of test
4 - 7 Expression of results
4 - 8 Test report

Specifies a method for determining the tension set characteristics of vulcanized or thermoplastic rubbers. Apparatus, dimensions, preparation, conditioning, marking, and time-interval between vulcanization and testing of test pieces, procedure, strain, duration of test and temperature, expression of results and test report are laid down. This Standard is identical with and reproduced from ISO 2285:1988.

This International Standard specifies a method for determining the tension set characteristics of vulcanized or thermoplastic rubbers. The test is intended to measure the ability of rubbers of hardness within the range 30 to 94 International Rubber Hardness Degrees (IRHD) to retain their elastic properties after extension, at a standard temperature, to a specified strain which is maintained for a specified time at the same or at a specified higher temperature and then released at the standard temperature. NOTE - Three types of test piece are described: strips, strips with enlarged ends and rings. Tests made withdifferent types of test piece do not necessarily give the same value of tension set; neither will tests made atdifferent temperatures necessarily place the materials in the same order of merit.

First published as AS 1683.9-1974.
Second edition 1992.