ASTM D642
ASTM D642 is a test method developed by ASTM International (formerly known as the American Society for Testing and Materials) for determining the compressive properties of rigid cellular plastics. This standard provides a procedure for measuring the compressive strength and deformation characteristics of foam materials, such as polyurethane foam or polystyrene foam.
The test involves applying a compressive force to a specimen of the foam material and measuring the load and deformation at various points during the test. The results of the test can be used to assess the material's compressive strength and its behavior under compressive loads.
ASTM D642 specifies the equipment, specimen preparation, testing procedures, and calculations necessary to perform this test in a standardized and reproducible manner. It is often used in quality control and research and development to evaluate the mechanical properties of foam materials and to ensure that they meet specific performance requirements.
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