【英文标准名称】:StandardTestMethodforImpactResistanceofMonolithicPolycarbonateSheetbyMeansofaFallingWeight
【原文标准名称】:用落锤冲击法测定整块聚碳酸酯薄板抗冲击性的试验方法
【标准号】:ASTMF736-1995(2006)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:F07.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:聚碳酸酯;抗冲击(强度);板;航空航天运输;航天技术;试验;材料
【英文主题词】:fallingweight;impactresistance;polycarbonate
【摘要】:Thispracticeisapplicableforqualitativelyevaluatingcoatedanduncoatedmonolithicpolycarbonatesheetmaterial,formonitoringprocesscontrol,forscreeningstudies,andasanaidinthepredictionofhardwareperformancewhenexposedtoimpactserviceconditions.AlimitationofTypeAspecimentestingisthatathicksheetmaynotfailsincetheavailableimpactenergyislimitedbythemaximumdropheightandfallingweightcapacityofthetestapparatus.UseSpecimenTypeAformateriallessthan12.7mm(0.50in.)thick.Withintherangeofdropheightsofthissystem,testsemployingdifferentvelocitiesarenotexpectedtoproducedifferentresults.However,foragivenseriesoftests,itisrecommendedthatthedropheightbeheldapproximatelyconstantsothatvelocityofimpact(strainrate)willnotbeavariable.Asthepolycarbonatespecimenundergoeslargeplasticdeformationunderimpact,thedown(oppositeimpact)sideisundertensileloadingandmostinfluentialininitiatingfailure.Polycarbonatesheetcoatedononesidemayyieldsignificantlydifferenttestresultswhentestedwiththecoatedsidedownversusthecoatedsideup.DirectcomparisonofspecimenTypeAandspecimenTypeBtestresultsshouldnotbeattempted.Fortestprogramsthatwillrequirethecomparisonofinterlaboratorytestresultsthespecimentypeandtheapproximatedropheightmustbespecified.Monolithicpolycarbonatesheetisnotchsensitive.Dataobtainedfromothertestmethods,particularlynotchedIzod/Charpytestresults,andextremelyhigh-orlow-strainratetestresults,shouldnotbecompareddirectlytodataobtainedfromthismethod.ItisnotedthatTypeAspecimens,freeofflaws,havenotexperiencedthecharacteristicductile-to-brittletransitionbetweenthin,lessthan3.18mm(1/8in.),andthick,greaterthan7.94mm(5/16in.),sheetasreflectedbyothertestmethods.1.1Thistestmethodcoversthedeterminationoftheenergyrequiredtoinitiatefailureinmonolithicpolycarbonatesheetmaterialunderspecifiedconditionsofimpactusingafreefallingweight.1.2Twospecimentypesaredefinedasfollows:1.2.1TypeAconsistsofaflatplatetestspecimenandemploysaclampedringsupport.1.2.2TypeBconsistsofasimplysupportedthree-pointloadedbeamspecimen(Fig.1)andisrecommendedforusewithmaterialwhichcannotbefailedusingtheTypeAspecimen.Foramaximumdropheightof6.096m(20ft)andamaximumdropweightof22.68kg(50lb),virginpolycarbonategreaterthan12.70mm(1/2in.)thickwillprobablyrequireuseoftheTypeBspecimen.Note1-SeealsoASTMMethods:D1709,D2444andD3029.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatement,SeeSection7.
【中国标准分类号】:G30
【国际标准分类号】:83_140_10
【页数】:6P.;A4
【正文语种】:
【英文标准名称】:StandardSpecificationforPoly(VinylChloride)(PVC)ProfileStripforMachineSpiral-WoundLinerPipeRehabilitationofExistingSewersandConduit
【原文标准名称】:现用下水道和导管的机械螺旋缠绕衬管修复用聚氯乙烯(PVC)异型带的标准规范
【标准号】:ASTMF1697-2009
【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】:F17.67
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:expandable;gravityapplications;grouted;machinemade;PVCprofilestrip;rehabilitation;spiral-woundlinerpipe;Conduits--specifications;Gravitysewerpipe--specifications;Liner/linings--specifications;MachinespiralwoundPVClinerpipe;Pol
【摘要】:TherequirementsofthisspecificationareintendedtoprovideextrudedPVCprofilestripsuitableforthefieldfabricationofspirallywoundlinerpipefortherehabilitationofexistingpipelinesandconduitsconveyingsewage,processflow,andstormwaterundergravityflowconditions.Note38212;Industrialwastedisposallinesshouldbeinstalledonlywiththespecificapprovalofthecognizantcodeauthoritysincechemicalsnotcommonlyfoundindrainsandsewersandtemperaturesinexcessof140x00B0;F(60x00B0;C)maybeencountered.1.1Thisspecificationcoversrequirementsandtestmethodsformaterials,dimensions,workmanship,stiffnessfactor,extrusionquality,andaformofmarkingforextrudedpoly(vinylchloride)(PVC)profilestripsusedformachinemadefieldfabricationofspirallywoundpipelinersintherehabilitationofavarietyofgravityapplicationssuchassanitarysewers,stormsewers,andprocesspipingindiametersof6to180in.andforsimilarsizesofnon-circularpipelinessuchasarchedorovalshapesandrectangularshapes.1.2Profilestripproducedtothisspecificationisforuseinfieldfabricationofspirallywoundlinerpipesinnonpressuresewerandconduitrehabilitation,wherethespirallywoundlinerpipeisexpandeduntilitpressesagainsttheinteriorsurfaceoftheexistingsewerorconduit,or,alternatively,wherethespirallywoundlinerpipeisinsertedasafixeddiameterintotheexistingsewerorconduitandtheannularspacebetweenthelinerpipeandtheexistingsewerorconduitisgrouted.1.3Thisspecificationincludesextrudedprofilestripsmadeonlyfrommaterialsspecifiedin5.1.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thefollowingprecautionarycaveatpertainsonlytothetestmethodportion,Section11,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G33
【国际标准分类号】:83_080_20
【页数】:7P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 环形钢筋混凝土电杆 |
| 英文名称： | Circular reinforced concrete pole |
| 中标分类： |
建材 >>
建材产品 >>
混凝土制品 |
| ICS分类： |
建筑材料和建筑物 >>
建筑材料 >>
混凝土和混凝土制品
|
| 替代情况： | GB 396-1984;被GB/T 4623-2006代替 |
| 发布部门： | 国家技术监督局 |
| 发布日期： | 1994-01-02 |
| 实施日期： | 1995-08-01 |
| 首发日期： | 1965-06-23 |
| 作废日期： | 2006-12-01 |
| 主管部门： | 中国建筑材料工业协会 |
| 归口单位： | 全国水泥制品标准化技术委员会 |
| 起草单位： | 苏州混凝土水泥制品研究院 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：25， 字数：45千字 |
适用范围
本标准规定了环形钢筋混凝土电杆的产品分类、技术要求、试验方法、检验规则、标志与出厂合格证明书、保管及运输等。本标准适用于电力、通讯及接触网架空线路的电杆、照明支柱和信号机柱等。不包括电杆的其他组成部分，如横担、卡盘、底盘等配件。
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所属分类： 建材 建材产品 混凝土制品 建筑材料和建筑物 建筑材料 混凝土和混凝土制品