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ASTM F2437-2006 与螺旋帽、螺栓、锚和螺柱用碳和合金钢可压缩垫圈式直读张力指示器的标准规范

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【英文标准名称】:StandardSpecificationforCarbonandAlloySteelCompressible-Washer-TypeDirectTensionIndicatorsforUsewithCapScrews,Bolts,Anchors,andStuds
【原文标准名称】:与螺旋帽、螺栓、锚和螺柱用碳和合金钢可压缩垫圈式直读张力指示器的标准规范
【标准号】:ASTMF2437-2006
【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】:F16.02
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:合金钢;锚;螺栓;戴帽螺拴;碳素钢;指示器;螺钉;钢;螺柱;抗拉荷载;垫圈
【英文主题词】:compressible-washer-type;directtensionindicators;DTI;loadindicators;loadindicatingwashers;tensionindicators
【摘要】:1.1Thisspecificationcoverstherequirementsforcarbonandalloysteelcompressible-washer-typedirecttensionindicatorscapableofindicatingaspecifiedbolttensionincapscrews,bolts,anchors,andstuds.1.2Directtensionindicatorsinnominaldiametersizes1/4through21/2in.arecovered.1.3TherearetwoTypesofDTIscoveredbythisspecification,Type1andType2.1.3.1Type1DTIsaresuitableforcomparativelylargebearingsurfaces.Type1DTIsareavailableinGrades55and105,whichdifferintheamountoftensiontheyindicateataprescribedgap(see).1.3.2Type2DTIsaresuitableforcomparativelysmallerbearingsurfaces.Type2DTIsareavailableinGrades5and8,whichdifferintheamountoftensiontheyindicateataprescribedgap(see).1.4Directtensionindicatorsareintendedforinstallationunderaboltorcapscrewhead,ahexnut,oragainstahardenedwasherorotherflathardenedsurface.Thefollowingprecautionarystatementpertainsonlytothetestmethodportions,SectionandAppendixXIofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J13
【国际标准分类号】:21_060_01
【页数】:5P.;A4
【正文语种】:


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【英文标准名称】:StandardTestMethodforDensityandUnitWeightofSoilinPlacebytheSand-ConeMethod
【原文标准名称】:用砂锥法现场测定土壤密度和单位重量的标准试验方法
【标准号】:ASTMD1556-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D18.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:砌块(建筑);建筑;施工材料;密度;土壤;测试
【英文主题词】:acceptancetests;compactiontests;degreeofcompaction;densitytests;earthfill;embankments;fieldcontroldensity;fieldtests;inplacedensity;inplacedrydensity;insitudensity;relativedensity;sandcone;soilcompaction;soiltests;un
【摘要】:1.1Thistestmethodmaybeusedtodeterminethein-placedensityandunitweightofsoilsusingasandconeapparatus.1.2Thistestmethodisapplicableforsoilswithoutappreciableamountsofrockorcoarsematerialsinexcessof11/2in.(38mm)indiameter.1.3Thistestmethodmayalsobeusedforthedeterminationofthein-placedensityandunitweightofintactorinsitusoils,providedthenaturalvoidorporeopeningsinthesoilaresmallenoughtopreventthesandusedinthetestfromenteringthevoids.Thesoilorothermaterialbeingtestedshouldhavesufficientcohesionorparticleattractiontomaintainstablesidesonasmallholeorexcavation,andbefirmenoughtowithstandtheminorpressuresexertedindiggingtheholeandplacingtheapparatusoverit,withoutdeformingorsloughing.1.4Thistestmethodisnotsuitablefororganic,saturated,orhighlyplasticsoilsthatwoulddeformorcompressduringtheexcavationofthetesthole.Thistestmethodmaynotbesuitableforsoilsconsistingofunboundgranularmaterialsthatwillnotmaintainstablesidesinthetesthole,soilscontainingappreciableamountsofcoarsemateriallargerthan11/2in.(38mm),andgranularsoilshavinghighvoidratios.1.5Whenmaterialstobetestedcontainappreciableamountsofparticleslargerthan11/2in.(38mm),orwhentestholevolumeslargerthan0.1ft3(2830cm3)arerequired,TestMethodD4914orD5030areapplicable.1.6Itiscommonpracticeintheengineeringprofessiontoconcurrentlyusepoundstorepresentbothaunitofmass(lbm)andaunitofforce(lbf).Thisimplicitlycombinestwoseparatesystemsofunits,thatis,theabsolutesystemandthegravitationalsystem.Itisscientificallyundesirabletocombinetheuseoftwoseparatesetsofinch-poundunitswithinasinglestandard.Thistestmethodhasbeenwrittenusingthegravitationalsystemofunitswhendealingwiththeinch-poundsystem.Inthissystemthepound(lbf)representsaunitofforce(weight).However,theuseofbalancesorscalesrecordingpoundsofmass(lbm),ortherecordingofdensityinlbm/ft3shouldnotberegardedasnonconformancewiththistestmethod.1.7AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026unlesssupersededbythisstandard.1.7.1Theproceduresusedtospecifyhowdataarecollected,recordedorcalculatedinthisstandardareregardedastheindustrystandard.Inadditiontheyarerepresentativeofthesignificantdigitsthatgenerallyshouldberetained.Theproceduresuseddonotconsidermaterialvariation,purposeforobtainingthedata,specialpurposestudies,oranyconsiderationsfortheusersobjectives;itiscommonpracticetoincreaseorreducesignificantdigitsorreporteddatatobecommensuratewiththeseconsiderations.Itisbeyondthescopeofthisstandardtoconsidersignificantdigitsusedinanalyticalmethodsforengineeringdesign.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:7P.;A4
【正文语种】:


【英文标准名称】:Aerospaceseries-Nuts,clip,metric-Installationholesandassembly;GermanandEnglishversionEN3741:2004
【原文标准名称】:航空航天系列.米制夹紧螺母.安装孔及组件
【标准号】:DINEN3741-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:航空航天运输;规范(验收);多语种的;自锁紧;高温;耐热材料;螺母;质量(物质);钢;米制的;架设(施工作业);安装孔;设计;尺寸;防松螺母;航空运输;紧固件;航天运输;夹紧螺母;安装
【英文主题词】:
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_30
【页数】:15P;A4
【正文语种】:德语