基本信息
| 标准名称： | 一般起重用锻造卸口 |
| 中标分类： |
机械 >>
通用机械与设备 >>
起重机械 |
| 替代情况： | 调整为JB/T 8112-1995;JB/T 8112-1995被JB/T8112-1999替代 |
| 发布日期： | |
| 实施日期： | 1990-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 12页 |
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所属分类： 机械 通用机械与设备 起重机械
【英文标准名称】:StandardTestMethodforDynamicPunctureResistanceofRoofingMembraneSpecimens
【原文标准名称】:屋面薄膜试样耐动态穿孔性能的标准试验方法
【标准号】:ASTMD5635-2004a
【标准状态】:现行
【国别】:
【发布日期】:2004
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D08.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:防水材料;试验;沥青;橡胶;性能;高聚物;塑料;薄膜材料;屋顶层
【英文主题词】:dynamicpuncture;impactenergy;insulationsubstrate;membranes;puncture;roofing;testmethod
【摘要】:Animportantfactoraffectingtheperformanceofmembraneroofingsystemsistheirabilitytoresistdynamicpunctureloads.Thistestmethodprovidesameanstoassessdynamicpunctureresistance.Thistestmethodcanbeusedtocomparethedynamicpunctureresistanceofasingletypeofmembraneasafunctionofavarietyofinsulationsubstratesor,conversely,tocomparetheresistanceofanumberofmembranespecimenssetonasingletypeofinsulation.Theeffectoftemperatureonpunctureresistancecanbestudiedbyconductingthetestundercontrolledconditionsusingsuchequipmentasanenvironmentalchamber,oven,orfreezer.Thetestmethodcanbeusefulindevelopingperformancecriteriaformembraneroofingsystems.Thetestmethodcanbeusefulindevelopingclassificationsofdynamicpunctureresistanceofmembraneroofingsystems.Whileitisconsideredthattheresultsobtainedbythislaboratorytestcanaffordameasureofthedynamicpunctureresistanceofmembraneroofingsystemsinthefield,(providedthatserviceloadsandtemperatureconditionsareknown)nodirectcorrelationhasyetbeenestablished.1.1Thistestmethodcoverstheevaluationofthemaximumdynamicpunctureloadthatroofingmembranesamplescanwithstand,withoutallowingthepassageofwater,whensubjectedtoimpactfromarigidobjecthavingasharpedge.1.2Thislaboratorytestcanbeconductedatanydesiredtemperatureusingmembranesamplesmanufacturedinafactoryorpreparedinalaboratory.1.3Roofmembranespecimenstowhichthetestmethodisapplicableincludebituminousbuilt-up,polymer-modifiedbitumens,vulcanizedrubbers,non-vulcanizedpolymeric,andthermoplasticmaterials.1.4Thistestmethodisnotapplicabletoaggregate-surfacedmembranespecimens;however,itisapplicabletospecimenshavingfactory-appliedgranules.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q17
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】: