【英文标准名称】:StandardTestMethodforEffectsofHeatAgingonWeightLoss,Cracking,andChalkingofElastomericSealants
【原文标准名称】:热老化对弹性填缝料重量损失、破裂及粉化影响的标准试验方法
【标准号】:ASTMC792-2004(2008)
【标准状态】:现行
【国别】:美国
【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】:C24.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:chalking;compound;cracking;elastomericsealants;heataging;non-sagsealants;self-levelingsealant;weightloss;Acceleratedaging/testing--elastomericsealants;Appearanceofmaterials;Chalking;Cracking--sealants;Elastomericseals/sealants
【摘要】:Weightlossthroughvolatilizationofcomponentsofasealantinabuildingjointmayaffectsealantappearancebecauseofshrinkageandsealantperformancebecauseofthelossoffunctionalsealantcomponents.Exposuretohigh-temperatureenvironmentswillacceleratethelossofvolatiles.Thistestmethodmeasuresweightloss.Itcanbeusedincombinationwithaknowledgeofsealantdensitytoestimateshrinkage.Inaddition,whencomparedtosealanttheoreticalweightsolids,itprovidesanestimateoftheextenttowhichfunctionalsealantcomponentscanbevolatilizedwhenexposedtohighservicetemperatures.Substantiallossesofthistypemayhelppredictearlyfailuresindurability.Also,developmentofcracksorchalking,orboth,lessenssealantservicelife.However,asealantthatdevelopsnocracksorchalking,orlowweightlossinthistestmethod,doesnotnecessarilyassuregooddurability.1.1Thistestmethodcoversalaboratoryprocedurefordeterminingtheeffectsofheatagingonweightloss,cracking,andchalkingofcured-in-placeelastomericjointsealants(single-andmulticomponent)foruseinbuildingconstruction.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.3ThereisnoknownISOequivalenttothistestmethod.
【中国标准分类号】:Q24
【国际标准分类号】:91_100_50
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:ChecklistforDocumentationDevelopmentandRevision
【原文标准名称】:文件制修订检查表
【标准号】:ANSI/EIA-773-2000
【标准状态】:作废
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电子工程;文献工作;电气工程
【英文主题词】:Checklists;Documentations;Electricalengineering;Electronicengineering;Electronicproducts
【摘要】:Aidsinthedevelopmentand/orrevisionofEIAstandards.
【中国标准分类号】:L04
【国际标准分类号】:29_020
【页数】:
【正文语种】:英语