The test methods detailed in this standard evaluate the tensile properties of thermoplastic elastomers and vulcanized thermoset rubbers. There are two separate test methods, which produce differing results:
- Test Method A - Dumbbell and Straight Section Specimens
- Test Method B - Cut Ring Specimens
This test method is designed to assess materials and products which are required to withstand tensile forces during their performance cycle.
Tensile properties depend on the material, and therefore the effects of the test will vary. There are also several test conditions which can alter results, including:
- Extension rate
- Specimen geometry
- Pretest conditioning
The tensile properties of a material are highly affected by temperature and extension rate and therefore need to be controlled variables.
*Please Note: The information outlined above is to be used as reference for ASTM D412 Standard Test Method for Vulcanized Rubber and Thermoplastic Elastomers - Tension and ISO 48 Rubber, vulcanized or thermoplastic -- Determination of hardness (hardness between 10 IRHD and 100 IRHD). Please refer to the appropriate standards agency for full details and the most current revision.