ISO 3386-1
Polymeric materials, cellular flexible –Determination of stress-strain characteristic in compression – Part 1: Low-density materials


ISO 3386-1 specifies the measurement method for indentation hardness of polyurethane foams and other open-cell expanded elastomers. The standard establishes procedures to assess material resistance to permanent deformation under static loading by applying a standardized indenter to the sample surface. This property is essential for evaluating quality and performance of mattresses, pillows, thermal insulation products, and industrial cushioning components, ensuring compliance with durability and comfort requirements for end-use applications.


ISO 3386-1 standard webpage
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