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SAE J388 (JUN1998)

Dynamic Flex Fatigue Test for Slab Polyurethane Foam
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SAE J388 (JUN1998)

Dynamic Flex Fatigue Test for Slab Polyurethane Foam

PUBLISH DATE 1998
PAGES 6
SAE J388 (JUN1998)
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.
SDO SAE: SAE International
Document Number J388
Publication Date June 1, 1998
Language en - English
Page Count 6
Revision Level 199806
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