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POUNDING TESTER TO TEST THE PRESSURE ON THE SURFAC

POUNDING TESTER TO TEST THE PRESSURE ON THE SURFAC

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The effect of repeated application of pressure on the surface of a slab of polyurethane foam experienced in its normal life is evaluated by simulating these conditions in laboratory by applying and releasing a specified force for a specified number of times, after which the effect of such pounding on the physical characteristics such as hardness index, thickness, and cell structure are observed to evaluate the quality of foam slab.

The   Pounding Tester for polyurethane foamconsists of a flat metallic platform for keeping the test specimen on, a circular indentor of specified shape and size which can be repeatedly lifted off and pressed against the foam slab, a pneumatic-operated arrangement to give movement to the platform, and a counter to count the total number of poundings given to the test specimen.

 

Related standard


  • ASTM D 3574 – 1986 : Standard Methods for Testing Flexible Cellular Materials  -Slabs, Bonded, and Moulded Urethane Foams