Product Code:SAE AMS3212
Title:Acrylonitrile Butadiene (Nbr) Rubber, Aromatic Fuel Resistant, 55-65
Issuing Committee:Ams Ce Elastomers Committee
Scope: This specification covers a nitrile (NBR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as gaskets, diaphragms, bushings, grommets, and sleeves, requiring resistance to aromatic and aliphatic fuels when continuously or alternately exposed to both, but usage is not limited to such applications.
Rationale: This specification covers a nitrile (NBR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as gaskets, diaphragms, bushings, grommets, and sleeves, requiring resistance to aromatic and aliphatic fuels when continuously or alternately exposed to both, but usage is not limited to such applications.【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