ASTM D 3574 international standard defines the procedure for determining the indentation force deflection (IFD) of a material by applying a specified amount of force to a circular indenter foot, which compresses the material to a specified thickness. The amount of force required to compress the material is measured and used to calculate the IFD value.

The ASTM D 3574 standard provides specific guidelines for the preparation of test samples, the selection of test equipment, and the testing procedure to ensure accurate and consistent results. The test method is useful in determining the load-bearing characteristics of a material, such as its ability to support weight and resist deformation.

This standard is widely used in various industries, including the automotive, furniture, and bedding industries, where flexible cellular materials are commonly used. The IFD values obtained through this standard are used to determine the appropriate level of firmness for a particular application.

NextGen’s Ball Rebound Tester complies with ASTM D 3574 standard.

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