ASTM B 93/B 93M-2000 砂型铸件、永久型模铸件和压模铸件用镁合金锭的标准规范
时间:2024-05-20 08:54:03 来源: 标准资料网 作者：标准资料网 阅读：8559
【英文标准名称】:StandardSpecificationforMagnesiumAlloysinIngotFormforSandCastings,PermanentMoldCastings,andDieCastings
【原文标准名称】:砂型铸件、永久型模铸件和压模铸件用镁合金锭的标准规范
【标准号】:ASTMB93/B93M-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】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:铸锭;压模铸造;合金;镁
【英文主题词】:diecasting;magnesium;alloys;ingots
【摘要】:
【中国标准分类号】:H61
【国际标准分类号】:77_150_20
【页数】:4P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforSealabilityofGasketMaterials
【原文标准名称】:衬垫材料密封性的标准试验方法
【标准号】:ASTMF37-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:F03.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:密封;密封材料;密封件;试验
【英文主题词】:flange;fluid;gas;gasketmaterials;leakage;manometer;pressure;sealability
【摘要】:Thesetestmethodsaredesignedtocomparegasketmaterialsundercontrolledconditionsandtoprovideaprecisemeasureofleakagerate.Thesetestmethodsaresuitableformeasuringleakageratesashighas6L/handaslowas0.3mL/h.Inmanycases,x201C;zerox201D;leakagemaynotbeattainable.Thesetestmethodsevaluateleakageratesaftertimeperiodsthataretypically5to30minunderload.Holdingagasketmaterialunderloadforextendedtimeperiodsmaygivedifferentresults.Ifthefluidbeingusedinthetestcauseschanges,suchasswelling,inthegasketmaterial,thenunpredictableresultsmaybeobtained.1.1Thesetestmethodsprovideameansofevaluatingthesealingpropertiesofsheetandsolidform-in-placegasketmaterialsatroomtemperature.TestMethodAisrestrictedtoliquidleakagemeasurements,whereasTestMethodBmaybeusedforbothliquidandgasleakagemeasurements.1.2Thesetestmethodsaresuitableforevaluatingthesealingcharacteristicsofagasketmaterialunderdifferentcompressiveflangeloads.Thetestmethodmaybeusedasanacceptancetestwhentheproduceranduserhaveagreedtospecifictestconditionsforthefollowingparameters:testmedium,internalpressureonmedium,andflangeloadongasketspecimens.1.3Thesetestmethodsuseasmall-diameternarrow-widthgasketasthetestspecimenunderrelativelylowgasketloadsandrelativelylowpressures.TestMethodF2378isanothersealabilitytestmethodthatusesalargergasketspecimenandhigherinternalpressuresandflangeloads.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Forspecifichazardorwarningstatements,orboth,see5.2.11,Section6,6.3,8.2.4,11.3.2,and11.4.2.)
【中国标准分类号】:J22
【国际标准分类号】:21_140
【页数】:8P.;A4
【正文语种】: