【英文标准名称】:StandardTestMethodforEvaluationofDurabilityofRockforErosionControlUnderFreezingandThawingConditions
【原文标准名称】:在冻结和解冻条件下评价侵蚀控制岩石耐久性的标准试验方法
【标准号】:ASTMD5312-2004
【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】:D18.17
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;土壤普查;稳定性;岩石
【英文主题词】:armorstone;breakwaterstone;climaticsetting;erosioncontrol;freeze-thaw;gabion-fill;laboratorytesting;riprap;rock;rockmaterialproperties
【摘要】:Rockusedforerosioncontrolmayconsistofseveraltypes,dependingonpotentialuse.Onetypemaybearmorstoneweighingfromonetothreetonsorbreakwaterstoneweighingthreetotwentytonsplacedalongshorelinesorinjettiestoprotecttheshorelinefromerosionduetotheactionoflargewaves.Anothertypemayberiprapusuallyweighinglessthanonetonandplacedalongriverbanksorontheslopesofdamstopreventerosionduetorun-off,waveaction,orstream-flow.Athirdtypemaybegabion-fillweighinglessthan50lb(22kg)andplacedinbasketsofwireorothersuitablematerials.Thesebasketsarethentiedtogethertoformanintegralstructuredesignedtoresisterosionalongstreambanksandaroundbridgepiers.Nomatterwhatformittakes,rockforerosioncontrolconsistsofindividualpiecesofnaturalstone.Theabilityoftheseindividualpiecesofstonetoresistdeteriorationduetoweatheringactionaffectsthestabilityoftheintegralplacementofrockforerosioncontrolandhence,thestabilityofconstructionprojects,shorelines,andstreambanks.Thistestmethodisdesignedtodeterminetheeffectsoffreezingandthawingactionontheindividualpiecesofrockforerosioncontrolandtheresistanceoftherocktodeterioration.ThistestmethodwasdevelopedtobeusedinconjunctionwithadditionaltestmethodslistedinPracticeD4992.Thistestmethoddoesnotprovideanabsolutevaluebutratheranindicationoftheresistancetofreezingandthawing;therefore,theresultsofthistestmethodarenottobeusedasthesolebasisforthedeterminationofrockdurability.Note18212;Thequalityoftheresultproducedbythisstandardisdependantuponthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetestingandsampling.UsersofthisstandardarecautionedthatcompliancewithPracticeD3740doesnotinitselfassurereliableresults.Reliableresultsdependonmanyfactors;PracticeD3740providesameansofevaluationsomeofthosefactors.1.1Thistestmethodcoverstheproceduresforevaluatingthedurabilityofrockforerosioncontrolwhenexposedtofreezingandthawingconditions.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsgiveninparenthesisareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:Butt-weldingpipefittingsforlightgaugestainlesssteeltubesforordinaryuse
【原文标准名称】:日常用小型量规不锈钢管的对焊管件
【标准号】:JISB2309-2009
【标准状态】:现行
【国别】:日本
【发布日期】:2009-03-20
【实施或试行日期】:2009-03-23
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonMachineElements
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisStandardspecifiesbutt-weldingpipefittingsmadeofstainlesssteelusedforlightgaugestainlesssteeltubesforordinarypipingspecifiedinJISG3448.Further,pipefittingsofspecialshapearespecifiedinAnnexAandtheshapesanddimensionsofbevelendareinAnnexB.Andtheshapesanddimensionsofloose-fittypeflangearedescribedinAnnexCasareference.NOTE:Theweld-fittingefficiencyofpipefittingshallbeconsideredaccordingtothepipingdesignconditionssuchastemperature,pressureandsoon.
【中国标准分类号】:J15
【国际标准分类号】:23_040_40
【页数】:30P.;A4
【正文语种】:日语