Browse Standards J815_200708
Historical Reaffirmed 2007-08-13

Load Deflection Testing of Urethane Foams for Automotive Seating J815_200708

Traditionally, cellular foam products have been checked for load deflection by determining the load required to cause a 25% deflection. In automotive seating, on the other hand, the load deflection is checked by determining the thickness under constant force conditions to (a) indicate the initial softness of the seat cushion, (b) measure how thick the seat cushion is under the average passenger load (a measurement of padding left for "ride" and seated height), and (c) determine a value to indicate resiliency. In this method these measurements are made by determining the thickness of the seat cushion under fixed loads of 4.5 N, 110 N, and 220 N with a 323 cm2 circular indentor foot.
J815_201211
2012-11-19
Latest
Canceled
J815_200708
2007-08-13
Historical
Reaffirmed
J815_200210
2002-10-30
Historical
Revised
J815_200112
2001-12-10
Historical
Reissued
J815_199806
1998-06-01
Historical
Issued
J815_199401
1994-01-01
Historical
Reaffirmed

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