ISO

ISO 527-2: Tensile Testing for Plastics

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ISO 527-2 is an international standard for determining the tensile properties of reinforced and non-reinforced plastics. While it provides similar results to ASTM D638, ISO 527-2 is not considered technically equivalent due to differences in specimen size and test requirements. While some large multinational manufacturers test to both ASTM D638 and ISO 527-2, most of our customers demonstrate a preference for one standard or the other based on their geographical location. North American manufacturers usually test to ASTM D638 while those in Europe and Asia primarily test to ISO 527-2. Customers in China test equally to ASTM D638 and to ISO 527-2. This guide is designed to introduce you to the basic elements of an ISO 527-2 plastic tensile test, but should not be considered an adequate substitute for reading the full standard.