JB/T 6997-2007 U形内骨架橡胶密封圈
作者:标准资料网 时间:2024-05-17 19:20:18 浏览:8007
来源:标准资料网
基本信息
标准名称: | U形内骨架橡胶密封圈 |
英文名称: | Rubber coverd U shape seals |
中标分类: |
机械 >>
通用零部件 >>
密封与密封装置 |
ICS分类: |
机械系统和通用件 >>
密封件、密封装置
|
替代情况: | 替代JB/T 6997-1993 |
发布部门: | 中华人民共和国国家发展和改革委员会 |
发布日期: | 2007-03-06 |
实施日期: | 2007-09-01 |
首发日期: | |
作废日期: | |
提出单位: | 中国机械工业联合会 |
归口单位: | 机械工业冶金设备标委会 |
起草单位: | 西安重型机械研究所 |
起草人: | 毕鹏 |
出版社: | 机械工业出版社 |
出版日期: | 2007-09-01 |
页数: | 8页 |
批文号: | 20274-2007 |
书号: | 15111·8353 |
适用范围
本标准规定了U形内骨架橡胶密封圈的型式参数和主要尺寸、技术要求,试验方法,检验规则,标志,包装、运输和贮存。本标准适用于公称通径DN25mm~DN300mm,工作压力PN≤4MPa管路系统法兰连接结构中的密封。
前言
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目录
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引用标准
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所属分类: 机械 通用零部件 密封与密封装置 机械系统和通用件 密封件 密封装置
【英文标准名称】:StandardTestMethodsforFireResistiveGreaseDuctEnclosureSystems
【原文标准名称】:耐火润滑脂管道密封系统的标准试验方法
【标准号】:ASTME2336-2004(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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】:E05.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:enclosurematerial;engulfmenttest;fire-resistive;fireseparatingelements;greaseduct;greaseductenclosuresystem;hosestream;internalfiretest;Fireendurancerating;Fireresistance;Fire-resistantmaterials/testing;Firetesting;Fire
【摘要】:Thesetestmethodsareintendedtoevaluatetheabilityofthegreaseductenclosuresystemtodothefollowing:Resisttheeffectsofastandardizedfireexposure,Retainitsintegrity,orExhibitbothpropertiesdependentuponthetypeoftestassemblyinvolvedduringapredeterminedtestexposure.Thesetestmethodsprovideforthefollowingmeasurementsandevaluationswhereapplicable:Capabilityoftheenclosurematerialtoresistflaming(combustion)whenexposedto1382x00B0;F(750x00B0;C).Loadbearingabilityofthetestedsupportsystemandfasteningsystemtocarrytheloadofthegreaseductenclosuresystemduringastandardizedfire-engulfmenttest.AbilityofafirestoptomeettherequirementsofTestMethodE814whenusedwithagreaseductenclosuresystem.Abilityoftheenclosurematerialtoresistthepassageofflamesandhotgasesduringastandardizedfireresistancetestandastandardizedinternalfiretest.Transmissionofheatthroughthegreaseductandtheenclosurematerial(s)duringastandardizedfireresistancetestandastandardizedinternalfiretest.Abilityofthegreaseductenclosuresystemtoresistthepassageofwaterduringastandardizedhosestreamtest.Comparativemeasurementoftemperatureagingoftheenclosurematerial(s)whensubjectedtostandardizedcyclicthermaltransmissions.Thesetestmethodsdonotprovidethefollowing:Fullinformationastoperformanceoftheenclosurematerialorthegreaseductenclosuresystemconstructedwithcomponents,densities,ordimensionsotherthanthosetested.Evaluationofthedegreebywhichtheenclosurematerialorgreaseductenclosuresystemcontributestothefirehazardbygenerationofsmoke,toxicgases,orotherproductsofcombustion.Measurementofthedegreeofcontrolorlimitationofthepassageofsmokeorproductsofcombustionthroughthegreaseductenclosuresystem.Measurementofflamespreadoverthesurfaceofthegreaseductenclosuresystem.Note28212;Theinformationin5.3.2-5.3.4isusuallydeterminedbyothersuitabletestmethods.Forexample,5.3.4istypicallydeterminedusingTestMethodE84.Inthesetestmethods,thetestspecimensaresubjectedtooneormorespecifictestsunderlaboratoryconditions.Whendifferenttestconditionsaresubstitutedortheend-useconditionsarechanged,itisnotalwayspossibleby,orfrom,thesetestmethodstopredictchangestothecharacteristicsmeasured.Therefore,theresultsoftheselaboratorytestsarevalidonlyfortheexposureconditionsdescribedinthesetestmethods.Varioustestmethodsinthesetestmethodsrequireatestspecimentobeexposedtoastandardfirethatiscontrolledtoachievespecifiedtemperaturesthroughoutaspecifiedtimeperiod.Thefire-engulfmentandverticalfireresistancetestsarefollowedbytheapplicationofastandardizedhosestreamtest.Thesetestmethodsprovidearelativemeasureofthefire-test-responseofcomparableenclosurematerialsandgreaseductenclosuresystemsundertheseexposureconditions.Thefireexposureisnotrepresentativeofallfireconditionsbecauseconditionsvarywithchangesintheamount,natureanddistributionoffireloading,ventilation,compartmentsizeandconfiguration,andheatsinkcharacteristicsofthecompartment.Variationfromthetestconditionsortestspecimenconstruction,suchassize,materials,methodofassembly,alsoaffectsthefire-test-response.Forthesereasons,evaluationofthevariationisrequiredforapplicationtoconstructioninthefield.......
【中国标准分类号】:J21
【国际标准分类号】:21_260
【页数】:15P.;A4
【正文语种】:英语
【英文标准名称】:
【原文标准名称】:耐火材料产品.密实制品的分类.制造工艺的术语
【标准号】:NFB40-002M-1968
【标准状态】:作废
【国别】:法国
【发布日期】:1968-12
【实施或试行日期】:
【发布单位】:法国标准化协会(AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:Q40
【国际标准分类号】:
【页数】:1P;A4
【正文语种】:其他