Product Description Foam compression deformation tester The foam compression deformation tester consists of parallel steel plate, restrictor and fastener. It conforms to the requirements of GB/T 6669-2008 and ISO 1856:2000 "Determination of compression and deformation of soft foam polymeric materials". Under the specified temperature, the foam material sample maintained constant deformation for a certain period of time. After the sample recovered for a period of time, the influence of deformation on the test thickness was observed. The compression * deformation of the material is expressed as the percentage of the difference between the initial thickness of the specimen and the final thickness of the specimen and the ratio of the initial thickness of the specimen. Foam compression permanent deformers consist of parallel steel plates, limpers and fasteners, conforming to GB/T 6669-2008 and ISO 1856-2000. Under the specified temperature, the foam material sample maintained constant deformation for a certain period of time. After the sample recovered for a period of time, the influence of deformation on the test thickness was observed. The compression deformation of the material is expressed as the percentage of the difference between the initial and final thickness of the sample and the ratio of the initial thickness of the sample.The sponge was compressed to 50%, 75% and 90% of the original thickness with the fixture and positioning block, and placed in the thermostat at the specified temperature. After 22 hours and 72 hours, the compressor was taken out from the compressor. After the sample was taken out of the compressor and placed for 30 minutes, the thickness was measured and the deformation was calculated.Technical Parameters: 1, the sample: length 50±1mm wide 50±1mm thickness 25±1mm 2. Dimensions: 200mm×120mm×100mm 3, compression rate of 50%, 75%, 90% 4, weight: 7kg