ASTM D 2671-1995 电气用热收缩管的测试方法
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来源:标准资料网
【英文标准名称】:TestMethodsforHeat-ShrinkableTubingforElectricalUse
【原文标准名称】:电气用热收缩管的测试方法
【标准号】:ASTMD2671-1995
【标准状态】:作废
【国别】:美国
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:收缩;电绝缘;管;试验;电气工程;热缩元件;覆层
【英文主题词】:electricalengineering;shrinkage;coatings;pipes;heatshrinkablecomponents;testing;electricalinsulation
【摘要】:
【中国标准分类号】:G33
【国际标准分类号】:83_140
【页数】:
【正文语种】:英语
基本信息
| 标准名称： | 陆良优质烤烟综合标准 第9部分：初烤烟叶质量要求 |
| 发布部门： | 云南省质量技术监督局 |
| 发布日期： | 2008-12-16 |
| 实施日期： | 2009-04-01 |
| 首发日期： | |
| 作废日期： | |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2009-04-01 |
适用范围
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前言
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目录
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引用标准
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所属分类： 综合 经济 文化 供应与使用关系 社会学 服务 公司(企业)的组织和管理 行政 运输 娱乐 旅游
【英文标准名称】:StandardTestMethodforDeterminingDeformabilityandStrengthofWeakRockbyanInSituUniaxialCompressiveTest
【原文标准名称】:现场单轴抗压试验测定软岩石的可加工性和强度的标准试验方法
【标准号】:ASTMD4555-2010
【标准状态】:现行
【国别】:美国
【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】:D18.12
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compressiontesting;deformation;insitustressloadingtests;Compressiontesting--rock/relatedmaterials;Deformation--rock;Destructivetesting--soil/rock;Discontinuities--rock;Fieldtesting--rock;Loadingtests--rock/relatedmaterials;Rockm
【摘要】:Sincethereisnoreliablemethodofpredictingtheoverallstrengthanddeformationdataofarockmassfromtheresultsoflaboratorytestsonsmallspecimens,insitutestsonlargespecimensarenecessary,especiallyifthespecimensizerequiredforagivengrainsizewouldexceedthesizethatcanbeobtainedforortestedinalaboratoryasstatedinTestMethodD7012.Suchtestsalsohavetheadvantagethattherockspecimenistestedundersimilarenvironmentalconditionsasprevailingfortherockmass.Sincethestrengthofrockisdependentonthesizeofthetestspecimenanddiscontinuities,itisnecessarytotestseveralspecimens(laboratoryorfield,orboth)ofprogressivelyincreasingsizeuntilanasymptoticallyconstantstrengthvalueisfound.Thisvalueistakentorepresentthestrengthoftherockmass.,Note18212;Notwithstandingthestatementsonprecisionandbiascontainedinthistestmethod;theprecisionofthistestmethodisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticearegenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthistestmethodarecautionedthatcompliancewithPracticedoesnotinitselfassurereliabletesting.Reliabletestingdependsonmanyfactors.Practiceprovidesameansofevaluatingsomeofthosefactors.Thetestmethodisshownonlybeingconductedundergroundandvertical.However,thistestmethodcouldbedoneinaquarryoronthesurfaceifareactionframecouldbesetuptobehaveasareactivesurfaceinplaceofatunnelcrown.1.1Thistestmethodcoversthemeasurementofthedeformabilityandstrengthoflargeinsituspecimensofrockbyauniaxialcompressivetest.Thetestresultstakeintoaccounttheeffectofbothintactmaterialbehaviorandthebehaviorofdiscontinuitiescontainedwithinthespecimenblock.1.2Thistestmethoddoesnotcoverwhichtypeofspecimenshouldbetestedorwhetheranisotropicfactorsshouldbeconsidered.Thespecificsofthetestprogramneedtobedevelopedpriortotestingandpossiblyevenbeforesampling.Suchspecificswouldbedependentontheintendeduseofthedata,aswellasanybudgetaryconstraintsandotherfactors,whichareoutsidethescopeofthistestmethod.1.3Theoreticallythereisnolimittothesizeofthetestspecimen;however,sizewillbecontrolledbythestrengthofthetestspecimenrelativetothecapacityofanyloadingapparatusandbearingcapacityofthesurfacetheapparatusmustreactagainst.Furthermore,theorientationandstrengthofdiscontinuitiesrelativetothespecimengeometrywillbeafactorlimitingspecimensizetoo.1.4AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,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】:英语
