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 with different types of test piece do not necessarily give the same value of tension set; neither will tests made at different temperatures necessarily place the materials in the same order of merit.
DS/ISO 2285:1989 history
1989DS/ISO 2285:1989 Rubber, vulcanized or thermoplastic. Determination of tension set at normal and high temperatures