ASTM D6746 | Rubber | Green Strength and Stress Relaxation Testing
ASTM D6746 covers the testing of tensile properties of Raw Rubber or Unvulcanized Compounds. The specification describes two test methods: A and B. Method A is for the measurement of tensile strength and modulus for Raw Rubber or Unvulcanized Compounds. Method B is for measurement of the stress relaxation characteristics of the same materials. If you are performing this test, you should read the entire specification from ASTM before you begin.