GB 15383-1994 气瓶阀出气口连接型式和尺寸

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基本信息
标准名称:气瓶阀出气口连接型式和尺寸
英文名称:Outlet connections and sizes for cylinder valves
中标分类: 机械 >> 通用零部件 >> 阀门
ICS分类: 流体系统和通用件 >> 流体存储装置 >> 压力容器、气瓶
替代情况:被GB 15383-2011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:1994-12-26
作废日期:2012-12-01
主管部门:国家标准化管理委员会
归口单位:全国气瓶标准化技术委员会
起草单位:全国气瓶标准化分技术委员会
出版社:中国标准出版社
出版日期:2004-11-08
页数:平装16开, 页数:19, 字数:33千字
书号:155066.1-11759
适用范围

本标准规定了各类气体瓶阀出气口连接型式和尺寸、充气接头的连接型式、螺纹规格和尺寸。本标准适用于容积不大于1000L的各类永久气体、液化气体、溶解气体气瓶上配置的瓶阀。本标准不适用于其它用途的特种气瓶上用的瓶阀。

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所属分类: 机械 通用零部件 阀门 流体系统和通用件 流体存储装置 压力容器 气瓶
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【英文标准名称】:StandardPracticeforUseofMattsson''sSolutionofpH7.2toEvaluatetheStress-CorrosionCrackingSusceptibilityofCopper-ZincAlloys
【原文标准名称】:用pH值为7.2的玛特松(mattsson's)溶液评价铜锌合金的应力腐蚀断裂灵敏性
【标准号】:ASTMG37-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:锌;腐蚀;金属;试验;评价;工艺;灵敏性;磨损;铜;溶液;耐腐蚀性;使用;合金
【英文主题词】:acceleratedstress-corrosioncrackingtestenvironment;continuousimmersion;copper-ammoniumsulfatesolution;copper-zincalloys
【摘要】:Thistestenvironmentisbelievedtogiveanacceleratedrankingoftherelativeorabsolutedegreeofstress-corrosioncrackingsusceptibilityfordifferentbrasses.Ithasbeenfoundtocorrelatewellwiththecorrespondingservicerankinginenvironmentsthatcausestress-corrosioncrackingwhichisthoughttobeduetothecombinedpresenceoftracesofmoistureandammoniavapor.Theextenttowhichtheacceleratedrankingcorrelateswiththerankingobtainedafterlong-termexposuretoenvironmentscontainingcorrodentsotherthanammoniaisnotatpresentknown.Examplesofsuchenvironmentsmaybeseveremarineatmospheres(Clx2212;),severeindustrialatmospheres(predominantlySO2),andsuper-heatedammonia-freesteam.Itisnotpossibleatpresenttospecifyanyparticulartimetofailure(definedonthebasisofanyparticularfailurecriteria)inpH7.2Mattssonrsquo;solutionthatcorrespondstoadistinctionbetweenacceptableandunacceptablestress-corrosionbehaviorinbrassalloys.Suchparticularcorrelationsmustbedeterminedindividually.Mattssonrsquo;solutionofpH7.2mayalsocausestressindependentgeneralandintergranularcorrosionofbrassestosomeextent.Thisleadstothepossibilityofconfusingstress-corrosionfailureswithmechanicalfailuresinducedbycorrosion-reducednetcrosssections.Thisdangerisparticularlygreatwithsmallcrosssectionspecimens,highappliedstresslevels,longexposureperiodsandstress-corrosionresistantalloys.Carefulmetallographicexaminationisrecommendedforcorrectdiagnosisofthecauseoffailure.Alternatively,unstressedcontrolspecimensmaybeexposedtoevaluatetheextenttowhichstressindependentcorrosiondegradesmechanicalproperties.1.1ThispracticecoversthepreparationanduseofMattsson''ssolutionofpHasanacceleratedstress-corrosioncrackingtestenvironmentforbrasses(copper-zincbasealloys).Thevariables(totheextentthattheseareknownatpresent)thatrequirecontrolaredescribedtogetherwithpossiblemeansforcontrollingandstandardizingthesevariables.1.2Thispracticeisrecommendedonlyforbrasses(copper-zincbasealloys).Theuseofthistestenvironmentisnotrecommendedforothercopperalloyssincetheresultsmaybeerroneous,providingcompletelymisleadingrankings.Thisisparticularlytrueofalloyscontainingaluminumornickelasdeliberatealloyingadditions.1.3Thispracticeisintendedprimarilywherethetestobjectiveistodeterminetherelativestress-corrosioncrackingsusceptibilityofdifferentbrassesunderthesameordifferentstressconditionsortodeterminetheabsolutedegreeofstresscorrosioncrackingsusceptibility,ifany,ofaparticularbrassorbrasscomponentunderoneormorespecificstressconditions.Otherlegitimatetestobjectivesforwhichthistestsolutionmaybeuseddo,ofcourse,exist.Thetensilestressespresentmaybeknownorunknown,appliedorresidual.Thepracticemaybeappliedtowroughtbrassproductsorcomponents,brasscastings,brassweldments,andsoforth,andtoallbrasses.Strictenvironmentaltestconditionsarestipulatedformaximumassurancethatapparentvariationsinstress-corrosionsusceptibilityareattributabletorealvariationsinthematerialbeingtestedorinthetensilestresslevelandnottoenvironmentalvariations.1.4Thispracticerelatessolelytothepreparationandcontrolofthetestenvironment.Noattemptismadetorecommendsurfacepreparationorfinish,orboth,asthismayvarywiththetestobjectives.Similarly,noattemptismadetorecommendparticularstress-corrosiontestspecimenconfigurationsormethodsofapplyingthestress.TestspecimenconfigurationsthatmaybeusedarereferencedinPracticeG30andSTP42......
【中国标准分类号】:H25
【国际标准分类号】:77_060;77_120_30
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Ergonomicrequirementsforofficeworkwithvisualdisplayterminals(VDTs)-Part1:generalintroduction.
【原文标准名称】:用屏幕终端的办公室工作的人类工效学要求.第1部分:概述
【标准号】:NFX35-122-1/A1-2001
【标准状态】:现行
【国别】:法国
【发布日期】:2001-05-01
【实施或试行日期】:2001-05-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Anatomicalconfigurations;Computerterminals;Computers;Dataprocessing;Definition;Definitions;Displaydevices(computers);EDP;Ergonomics;Heatinginstallation;Imagequality;Indicatingdevices;Indications;Informationprocessing;Informationtechnology;Keyboards;Officeequipment;Officemachines;Officeservices;Officework;Quality;Screens;Specification(approval);Survey;Testing;Visibility;Visualdisplayunits;Visualdisplayworkstations;Workplacelayout;Workingtask
【摘要】:
【中国标准分类号】:A25
【国际标准分类号】:13_180;35_080;35_180
【页数】:17P.;A4
【正文语种】:其他