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SAE J 388:1998

SAE J 388:1998

$25.35

Dynamic Flex Fatigue Test for Slab Polyurethane Foam

Published By Publication Date Number of Pages
SAE 1998-06-01 6
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This SAE Recommended Practice describes a laboratory test procedure for evaluating the loss of thickness and the amount of structural breakdown of slab polyurethane foam seating materials. A test specimen is measured for thickness under a specified load and subsequently subjected simultaneously to compressive and shear deformation in a controlled atmosphere. This is accomplished by subjecting the foam to a rolling shearing action under a constant load for a specified number of cycles. Specimen thickness under a constant load is obtained after a 1hr recovery period following dynamic fatigue to determine loss in foam thickness.

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SAE J 388:1998
$25.35