CB 382-1965 进线封口板
作者:标准资料网 时间:2024-05-05 19:43:10 浏览:9988
来源:标准资料网
基本信息
| 标准名称： | 进线封口板 |
| 中标分类： |
船舶 >>
船舶电气、观通、导航设备 >>
船用电气安装件 |
| ICS分类： |
造船和海上建筑物 >>
船舶和海上建筑物综合 >>
船用电气设备
|
| 发布日期： | 1965-10-20 |
| 实施日期： | 1967-01-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 2页 |
适用范围
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引用标准
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所属分类： 船舶 船舶电气 观通 导航设备 船用电气安装件 造船和海上建筑物 船舶和海上建筑物综合 船用电气设备
【英文标准名称】:StandardPracticeforElectromagnetic(Eddy-Current)ExaminationofCopperandCopper-AlloyTubes
【原文标准名称】:铜及铜合金管的电磁(涡流)检验
【标准号】:ASTME243-1997(2004)e1
【标准状态】:现行
【国别】:
【发布日期】:1997
【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】:E07.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:金属;无缝管;铜合金;工艺;涡流试验;电磁试验;有色金属;有色金属;无损检验;铜;合金;试验;管
【英文主题词】:electromagnetic(eddycurrent)testing;NDT;nondestructivetesting;copper;tubing
【摘要】:Eddy-currentexaminationisanondestructivemethodoflocatingdiscontinuitiesinaproduct.Signalscanbeproducedbydiscontinuitieslocatedeitherontheexternalorinternalsurfaceofthetubeorbydiscontinuitiestotallycontainedwithinthewalls.Sincethedensityofeddycurrentsdecreasesnearlyexponentiallyasthedistancefromtheexternalsurfaceincreases,theresponsetodeep-seateddefectsdecreases.Someindicationsobtainedbythismethodmaynotberelevanttoproductquality;forexample,arejectsignalmaybecausedbyminutedentsortoolchattermarksthatarenotdetrimentaltotheenduseoftheproduct.Irrelevantindicationscanmaskunacceptablediscontinuities.Relevantindicationsarethosewhichresultfromnonacceptablediscontinuities.Anyindicationabovetherejectlevelthatisbelievedtobeirrelevantshallberegardedasunacceptableuntilitisdemonstratedbyre-examinationorothermeanstobeirrelevant(see10.3.2).Eddy-currentexaminationsystemsaregenerallynotsensitivetodiscontinuitiesadjacenttotheendsofthetube(endeffect).On-lineeddy-currentexaminingwouldnotbesubjecttoendeffect.Discontinuitiessuchasscratchesorseamsthatarecontinuousanduniformforthefulllengthofthetubemaynotalwaysbedetected.1.1Thispracticecoverstheproceduresthatshallbefollowedineddy-currentexaminationofcopperandcopper-alloytubesfordetectingdiscontinuitiesofaseveritylikelytocausefailureofthetube.Theseproceduresareapplicablefortubeswithoutsidediametersto31/8in.(79.4mm),inclusive,andwallthicknessesfrom0.017in.(0.432mm)to0.120in.(3.04mm),inclusive,orasotherwisestatedinASTMproductspecifications;orbyotherusersofthispractice.Theseproceduresmaybeusedfortubesbeyondthesizerangerecommended,uponcontractualagreementbetweenthepurchaserandthemanufacturer.1.2Theproceduresdescribedinthispracticearebasedonmethodsmakinguseofencirclingannulartestcoilsystems.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Note1-Thispracticemaybeusedasaguidelinefortheexamination,bymeansofinternalprobetestcoilsystems,ofinstallationsusingtubularproductswheretheoutersurfaceofthetubeisnotaccessible.Forsuchapplications,thetechnicaldifferencesassociatedwiththeuseofinternalprobecoilsshouldberecognizedandaccommodated.Theeffectofforeignmaterialsonthetubesurfaceandsignalsduetotubesupportsaretypicalofthefactorsthatmustbeconsidered.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H26
【国际标准分类号】:23_040_15(NON-FERROUSMETALPIPES)
【页数】:5P.;A4
【正文语种】:
【英文标准名称】:PracticeforCollectionofDislodgeablePesticideResiduesfromFloors
【原文标准名称】:楼板沉积农药残留物采集惯例
【标准号】:ANSI/ASTMD6333-2001
【标准状态】:作废
【国别】:美国
【发布日期】:2001
【实施或试行日期】:
【发布单位】:美国国家标准学会(ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:残留物;农药;抽样方法;地板覆盖物
【英文主题词】:Carpets;Collections;Floorcoverings;Floors;Pesticides;Residues;Samplingmethods;Textilefloorcoverings
【摘要】:
【中国标准分类号】:P09
【国际标准分类号】:59_080_60
【页数】:
【正文语种】:英语
