BS EN 50290-2-30-2002 通信电缆.通用设计规则和制造.聚四氟乙烯-聚六氟丙烯(FEP)绝缘和铠装化合物

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【英文标准名称】:Communicationcables.Commondesignrulesandconstruction.Poly(tetrafluoroethylene-hexafluoropropylene)(FEP)insulationandsheathing
【原文标准名称】:通信电缆.通用设计规则和制造.聚四氟乙烯-聚六氟丙烯(FEP)绝缘和铠装化合物
【标准号】:BSEN50290-2-30-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-03-22
【实施或试行日期】:2002-03-22
【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】:电缆;装箱;同轴电缆;通信电缆;通信技术;控制设备;设计;开发;氯化乙丙烯;六氟丙烯;绝缘化合物;绝缘件;包装;材料;光学的;光波导;聚四氟乙烯;生产;规则;铠装化合物;盖板;规范(验收);对称的;电讯
【英文主题词】:Cables;Casing;Coaxialcables;Communicationcables;Communicationtechnology;Controlequipment;Design;Developments;FEP;Hexafluoropropylene;Insulatingcompounds;Insulations;Make-ups;Materials;Optical;Opticalwaveguides;Polytetrafluoroethylene;Production;Rules;Sheathingcompounds;Sheathings;Specification(approval);Symmetrical;Telecommunication
【摘要】:TobereadinconjunctionwithBSEN50290-2-20:2001
【中国标准分类号】:K13
【国际标准分类号】:29_035_20;33_120_10
【页数】:8P;A4
【正文语种】:英语


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基本信息
标准名称:应急卡片插框
中标分类: 船舶 >> 舾装设备 >> 舱室设备
发布日期:1900-01-01
实施日期:1900-01-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
适用范围

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所属分类: 船舶 舾装设备 舱室设备
【英文标准名称】:StandardPracticeforEvaluatingStress-Corrosion-CrackingResistanceofMetalsandAlloysinaBoilingMagnesiumChlorideSolution
【原文标准名称】:评定在沸腾的氯化镁溶液中金属及其合金的抗应力腐蚀断裂
【标准号】:ASTMG36-1994(2006)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:G01.06
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:溶液;合金;耐腐蚀性;氯化镁;应力腐蚀;金属;腐蚀;磨损;评定
【英文主题词】:acceleratedtest;apparatus;boilingmagnesiumchloride;glassware;nickelcontainingalloy;stainlesssteels;stress-corrosioncracking
【摘要】:Formostapplications,thisenvironmentprovidesanacceleratedmethodofrankingtherelativedegreeofstress-corrosioncrackingsusceptibilityforstainlesssteelsandrelatedalloysinaqueouschloride-containingenvironments.Materialsthatnormallyprovideacceptableresistanceinhotchlorideservicemaycrackinthistest.Thetestmaynotberelevanttostress-corrosioncrackinginpolythionicacidorcausticenvironments.Resistancetostress-corrosioncrackinginboilingmagnesiumchloride(155.0x00B0;C(311.0x00B0;F))should,wherepossible,becorrelatedtoresistanceinserviceforthematerialsofinterest.However,suchcorrelationsmaynotalwaysbepossible.Boilingmagnesiumchloridemayalsocausepittingofmanystainlessalloys.Thisleadstothepossibilityofconfusingstress-corrosionfailureswithmechanicalfailuresinducedbycorrosion-reducednetcrosssections.Thisdangerisparticularlygreatwhensmallcrosssectionsamples,highappliedstresslevels,longexposureperiods,stress-corrosionresistantalloys,oracombinationthereofarebeingused.Carefulexaminationisrecommendedforcorrectdiagnosisofthecauseoffailure.1.1Thispracticedescribesaprocedureforconductingstress-corrosioncrackingtestsinaboilingmagnesiumchloridesolution.Althoughthistestmaybeperformedusingvariousconcentrationsofmagnesiumchloride,thisprocedurecoversatestsolutionheldataconstantboilingtemperatureof155.01.0176;C(311.01.8176;F).TheboilingpointsofaqueousmagnesiumchloridesolutionsatoneatmospherepressureasafunctionofconcentrationareshowngraphicallyinFig.1.Asuggestedtestapparatuscapableofmaintainingsolutionconcentrationandtemperaturewithintheprescribedlimitsforextendedperiodsoftimeisalsodescribedherein.1.2Theboilingmagnesiumchloridetestisapplicabletowrought,cast,andweldedstainlesssteelsandrelatedalloys.Itisamethodfordetectingtheeffectsofcomposition,heattreatment,surfacefinish,microstructure,andstressonthesusceptibilityofthesematerialstochloridestresscorrosioncracking.1.3Thispracticeisconcernedprimarilywiththetestsolution,whichmaybeusedwithavarietyofstresscorrosiontestspecimens,surfacefinishes,andmethodsofapplyingstress.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSectionforspecificsafetyprecautions.
【中国标准分类号】:H25
【国际标准分类号】:77_060
【页数】:6P.;A4
【正文语种】: