Definitive Guide to Elastomer Tensile Testing per ASTM D412 & ISO 37

The tensile strength and elongation (stretchiness) of rubbers and elastomers are material properties that indicate a material’s quality and performance. Read the Definitive Guide to Elastomer Tensile Testing per ASTM D412: www.instron.us...
Researchers, engineers, and quality control technicians across the world follow the same test procedure - ASTM D412 or ISO 37 - so that the measured data can be compared and duplicated. In this step by step guide, we show how this test is performed on two Instron branded Universal Testing Machines.
The first example shown is performed on Instron’s premium 5900 Series testing system. In this configuration, premium accessories such as pneumatic grips and a video extensometer are shown. Many of the world’s largest elastomer, rubber, and automotive tire manufacturers have standardized on this exact configuration.
It is possible to perform ASTM D412 or ISO 37 with manual accessories such as self-tightening manual grips with a clip-on long travel extensometer. This example is shown in the second part of the video. While accuracy of the 3300 Series system is similar, this configuration generally takes more time and the chance of variability between operators is greater.
The same system can perform ASTM D412 and ISO 37 but the sample size is slightly different and a user would need two different cutting dies to perform both tests. ASTM D412 is generally the most performed test globally, but ISO 37 is gaining popularity.
Read How to Perform a Tensile Test to ISO 37 for more information:
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