SJ/T 31136-1994 磨粉机完好要求和检查评定方法
时间:2024-05-05 22:43:20 来源: 标准资料网 作者：标准资料网 阅读：9879
基本信息
| 标准名称： | 磨粉机完好要求和检查评定方法 |
| 中标分类： |
电子元器件与信息技术 >>
电子工业生产设备 >>
加工专用设备 |
| 发布日期： | 1900-01-01 |
| 实施日期： | 1997-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 2页 |
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： 电子元器件与信息技术 电子工业生产设备 加工专用设备
【英文标准名称】:IntegratedServicesDigitalNetwork(ISDN)-DigitalSubscriberSignallingSystemNo.one(DSS1)andSignallingSystemNo.7(SS7)protocols-CallForwardingonNotReachable(CFNRc)supplementaryserviceforCordlessTerminalMobility(CTM)phase1-Par
【原文标准名称】:综合业务数字网(ISDN).数字用户信令系统1(DSS1)和系统7(SS7)协议.无绳终端移动相1未达到的补充服务前呼叫.第1部分:协议规范
【标准号】:NFZ85-094-1-2000
【标准状态】:现行
【国别】:法国
【发布日期】:2000-06-01
【实施或试行日期】:2000-06-20
【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】:Additionalequipment;Callforwarding;Calltransmission;Circuitnetworks;Communicationservice;Communicationtechnology;Conformity;Cordless;Digital;Digitalsignals;ETSI;Informationprocessing;Integratedservicesdigitalnetwork;ISDN;Protocols;Radiosystems;Records;Signaltransmission;Signallingsystems;Subscriber'ssystems;Supplementaryservices;Telecommunication;Telecommunicationnetworks;Telecommunicationsystems;Telecommunications;Telephonenetworks;Terminaldevices;Terminals;Transmissionprotocol
【摘要】:
【中国标准分类号】:M11
【国际标准分类号】:33_030;33_080
【页数】:21P.;A4
【正文语种】:其他
【英文标准名称】:StandardPracticeforLaboratoryScreeningofMetallicContainmentMaterialsforUseWithLiquidsinSolarHeatingandCoolingSystems
【原文标准名称】:太阳能加热和制冷系统中贮存液体用金属容器材料的实验室遮蔽的标准实施规程
【标准号】:ASTME712-1980(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1980
【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】:E44.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:corrosion;deterioration;highpressure;immersion;metalliccontainmentmaterials;solarcollector;solarheatingandcooling;Containmentsystems/applications;Corrosion--metals/alloys;Corrosion--solardevices;Crevicecorrosion;Deterioration;D
【摘要】:Atthistime,noneofthesetestshasbeendemonstratedtocorrelatewithfieldservice.Itisessentialthatconsiderationbegiventotheappropriatepairingofmetalandfluidsincetheseproceduresdonotrestricttheselectionofeitherthecontainmentmaterialorthefluidfortesting.Likewise,knowledgeofthecorrosionprotectionmechanismandtheprobablemodeoffailureofaparticularmetalishelpfulintheselectionoftestconditionsandtheobservation,interpretation,andreportingoftestresults.Thedesignofsolarheatingandcoolingsystemsstronglyaffectstheapplicabilityoftheresultsofthelaboratoryscreeningtests.Therefore,theresultsoftheselaboratoryproceduresshouldbeconfirmedbycomponentandsystemstestingunderactualorsimulatedserviceconditions.Table1isprovidedtoassistinanorderlyconsiderationoftheimportantfactorsintesting.Itisexpectedthattheuserofthetestprocedurewillinvestigatearangeoftesttimesandtemperaturesforthecontainmentmaterialinametal/fluidpair,andadjustthetimeandtemperatureoftestingasnecessary.Note18212;Corrosion,whethergeneralorlocalized,isatime-dependentphenomenon.Thistimedependencecanshowsubstantialnonlinearity.Forexample,formationofaprotectiveoxidewilldiminishcorrosionwithtime,whilecertainformsoflocalizedattackacceleratewithtime.Theminimumtimerequiredforatesttoprovideacorrosionratethatcanbeextrapolatedforthepredictionoflong-termperformancevarieswidely,dependingontheselectionofmetalandfluid,andontheformofcorrosionattack.Therefore,itisnotpossibletoestablishasingleminimumlengthoftestapplicabletoallmaterialsandconditions.However,itisrecommendedthatforthetestsdescribedinthispractice,atestperiodofnolessthan30daysbeused.Furthermore,itisrecommendedthattheeffectoftimeoftestingbeevaluatedtodetectanysignificanttimedependenceofcorrosionattack.Itisessentialforthemeaningfulapplicationoftheseproceduresthatthelengthofthetestbeadequatetodetectchangesinthenatureofthefluidthatmightsignificantlyalterthecorrosivityofthefluid.Forexample,exhaustionofchemicalinhibitororchemicalbreakdownofthefluidmayoccurafterperiodsofmonthsinselectedcyclesofoperation.Note28212;Manyfluidsthatmaybeconsideredforsolarapplicationscontainadditivestominimizethecorrosivityofthefluid.Manysuchadditivesareusefulonlywithinaspecificconcentrationrange,andsomeadditivesmayactuallyacceleratecorrosioniftheconcentrationfallsbelowacriticallevel.Depletionkineticscanbeastrongfunctionoftheexposedmetalsurfacearea.Therefore,fortestsinvolvingfluidswithsuchadditives,considerationmustbegiventotheratioofmetalsurfaceareatofluidvolumeasitmayrelatetoanoperatingsystem.TABLE1SignificantVariablesinEvaluationofContainmentMaterial/HeatTransferFluidPairsATestAspectVariableTemperatureFlowRateI.
OperatingConditionsofSystem:
A.Operating,fullflo........
【中国标准分类号】:A82
【国际标准分类号】:77_040_99
【页数】:8P.;A4
【正文语种】:英语