【英文标准名称】:StandardTestMethodforWeatherResistanceofSlate
【原文标准名称】:天然石板耐风化性的标准试验方法
【标准号】:ASTMC217/C217M-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:C18.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:dimensionstone;durability;slate;stone;test;weatherresistance;Acidresistance;Dimensionstone;Slate;Weathering(buildingmaterials/applications)
【摘要】:Thistestmethodisusefulinindicatingthedifferencesinweatherresistancebetweenvariousslates.Thistestmethodalsoprovidesoneelementinthecomparisonofslates.1.1Thistestmethodcoverstwoproceduresforweatherresistanceofslateinalloutdoorinstallationsbydeterminingthedepthofsofteningbyanabraserorbyhandscraping.Note18212;Thetestisbasedonthefactthatslatescontainingpyrite,calcite,andcarbonundergoachemicalweatheringwhichresultsintheconversionofthecalciteparticlestogypsum.Theswellingactionthatresultscausesdisintegrationoftheslate.Theextentofthisactiononvariousslatesinthetesthasbeenfoundtocorrelatewiththedurabilityofthematerialsinactualweathering.1.2Units8212;ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q21
【国际标准分类号】:91_100_15
【页数】:3P.;A4
【正文语种】:英语