ASTM D3574 is a commonly used standard for tests involving flexible cellular foam materials. Test M specifies a method for measuring the recovery time of slow recovery (viscoelastic) foams, like memory foam. It is an important test in the mattress industry.
A universal tensile testing machine and compression platen configuration like found in traditional IFD tests is needed to complete the test procedure. Before conducting ASTM D3574 Test M, it is important to read the entire specification in the relevant ASTM publication.