【英文标准名称】:Switchgearforaircraft.Triplepolepush-buttonoperatedcircuit-breaker.
【原文标准名称】:飞机开关设备.三极按钮式断路器
【标准号】:NFL58-525-1965
【标准状态】:现行
【国别】:法国
【发布日期】:1965-09-01
【实施或试行日期】:1966-12-30
【发布单位】:(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:V25
【国际标准分类号】:29_120_50;49_060
【页数】:2P.;A4
【正文语种】:其他


Product Code:SAE J388
Title:Dynamic Flex Fatigue Test for Slab Polyurethane Foam (Cancelled Jun 1998)
Issuing Committee:Motor Vehicle Council
Scope: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.