【英文标准名称】:StandardSpecificationforDeformedandPlainStainless-SteelBarsforConcreteReinforcement
【原文标准名称】:混凝土配筋用变形和普通不锈钢钢筋的标准规格
【标准号】:ASTMA955/A955M-2010a
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:A01.05
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:钢筋混凝土;耐腐蚀性;变形(突出物);磁性能;不锈钢筋
【英文主题词】:concretereinforcement;corrosionresistance;deformations(protrusions);magneticproperties;stainlesssteelbars
【摘要】:1.1Thisspecificationcoversdeformedandplainstainless-steelbarsforconcretereinforcementincutlengthsandcoilsusedinapplicationsrequiringresistancetocorrosionorcontrolledmagneticpermeability.ThestandardsizesanddimensionsofdeformedbarsandtheirnumericaldesignationshallbethoselistedinTable1.Thetextofthisspecificationreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsofthespecification.1.1.1Supplementaryrequirement(S1)ofanoptionalnatureisprovided.Itshallapplyonlywhenspecifiedbythepurchaser.Inordertoobtainacontrolledmagneticpermeabilityproduct,steelconformingtoSupplementaryRequirementS1shouldbeordered.1.2Thechemicalcompositionofthestainlesssteelalloyshallbeselectedforsuitabilitytotheapplicationinvolvedbyagreementbetweenthemanufacturerandthepurchaser.Thisisanimportantconsiderationinachievingthedesiredcorrosionresistanceorcontrolledmagneticpermeability,orboth,becausethesepropertiesarenotprovidedbyallstainlesssteels.Note18212;ThealloysshowninTable2havefoundthemostuseinNorthAmerica.Otheralloysmayalsoprovidedesiredproperties;consultwiththemanufacturerforstainlesssteelalloypropertiesandavailability.1.3Barsareofthreeminimumyieldstrengthlevels,namely,40000[280MPa],60000[420MPa],and75000psi[520MPa],designatedasGrade40[280],Grade60[420],andGrade75[520],respectively.1.4Plainroundsinsizesuptoandincluding2in.[50.8mm]indiameterincoilsorcutlengths,whenordered,shallbefurnishedunderthisspecificationinGrade40[280],Grade60[420],andGrade75[520],respectively.Bendingproperties,whenrequired,shallbebyagreementbetweenthemanufacturerandpurchaser.Requirementsprovidingfordeformationsandmarkingshallnotbeapplicabletoplainbars.1.5Weldabilityofmoststainlesssteelcompositionsisgenerallygood,however,pre-weldorpost-weldprocedures,orboth,arenecessary.Wherematerialistobewelded,aweldingproceduresuitableforthechemicalcompositionandintendeduseorserviceshallbeused.Retestingofphysicalpropertiesshouldbeconsideredfollowingweldingproceduresdependinguponthesteelcompositionandweldingoperationinvolved.Note28212;ItisrecommendedthattheuserconsultthemanufacturerforinformationavailablefromtheNickelDevelopmentInstitute(NIDI)(Toronto,Canada).1.6Thisspecificationisapplicableforordersineitherinch-poundunits(asSpecificationA955)orinSIunits(asSpecificationA955M).1.7Thevaluesstatedineitherinch-poundorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H49
【国际标准分类号】:77_140_60
【页数】:11P.;A4
【正文语种】:


【英文标准名称】:Insulationcoordinationforequipmentwithinlow-voltagesystems-Useofcoating,pottingormouldingforprotectionagainstpollution
【原文标准名称】:低压系统内设备的绝缘配合.防污染用涂覆、灌封和模压的应用
【标准号】:BSEN60664-3-2003
【标准状态】:作废
【国别】:英国
【发布日期】:2003-06-09
【实施或试行日期】:2003-06-09
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Coatings;Definition;Definitions;Dimensioning;Electricappliances;Electricalengineering;Electrically-operateddevices;Insulationcoordination;Insulations;Low-voltageinstallations;Low-voltageinsulator;Measurement;Printedcircuits;Printed-circuitboards;Specification(approval);Testing
【摘要】:ThispartofIEC60664appliestoassembliesprotectedagainstpollutionbytheuseofcoating,pottingormoulding,thusallowingareductionofclearanceandcreepagedistancesasdescribedinPart1orPart5.NOTE1WhenreferenceismadetoPart1orPart5,IEC60664-1orIEC60664-5aremeant.Thisstandarddescribestherequirementsandtestproceduresfortwomethodsofprotection:-type1protectionimprovesthemicroenvironmentofthepartsundertheprotection;-type2protectionisconsideredtobesimilartosolidinsulation.Thisstandardalsoappliestoallkindsofprotectedprintedboards,includingthesurfaceofinnerlayersofmulti-layerboards,substratesandsimilarlyprotectedassemblies.Inthecaseofmulti-layerprintedboards,thedistancesthroughaninnerlayerarecoveredbytherequirementsforsolidinsulationinPart1.NOTE2Examplesofsubstratesarehybridintegratedcircuitsandthick-filmtechnology.Thisstandardrefersonlytopermanentprotection.Itdoesnotcoverassembliesthataresubjectedtomechanicaladjustmentorrepair.Theprinciplesofthisstandardareapplicabletofunctional,basic,supplementaryandreinforcedinsulation.
【中国标准分类号】:K31
【国际标准分类号】:29_080_30
【页数】:30P;A4
【正文语种】:英语