GB/T 17626.10-1998 电磁兼容 试验和测量技术 阻尼振荡磁场抗扰度试验
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时间:2024-05-19 13:01:31
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基本信息
| 标准名称： | 电磁兼容 试验和测量技术 阻尼振荡磁场抗扰度试验 |
| 英文名称： | Electromagnetic compatibility --Testing and measurement techniques --Damped oscillatory magnetic field immunity test |
| 中标分类： |
电子元器件与信息技术 >>
电子元器件与信息技术综合 >>
电磁兼容 |
| ICS分类： |
电信、音频和视频技术 >>
电磁兼容性(EMC)
|
| 发布部门： | 国家质量技术监督局 |
| 发布日期： | 1998-01-02 |
| 实施日期： | 1999-01-02 |
| 首发日期： | 1998-12-14 |
| 作废日期： | 1900-01-01 |
| 主管部门： | 国家标准化管理委员会 |
| 归口单位： | 全国电磁兼容标准化技术委员会 |
| 起草单位： | 电力工业部武汉高压研究所 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：23， 字数：44千字 |
适用范围
本标准规定了在运行条件下的设备对中压和高压变电所中的阻尼振荡磁场骚扰的抗扰度要求。
前言
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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 电子元器件与信息技术综合 电磁兼容 电信 音频和视频技术 电磁兼容性(EMC)
【英文标准名称】:TestMethodforDeterminationofIndividualComponentsinSparkIgnitionEngineFuelsbyHighResolutionGasChromatography
【原文标准名称】:高分辨气相色谱法测定火花点火发动机燃料中单一成分的试验方法
【标准号】:ASTMD6623-2001
【标准状态】:作废
【国别】:
【发布日期】:2001
【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】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:detailedhydrocarbonanalysis;DHA;DHC;gaschromatography;hydrocarbons;IHA;opentubularcolumn;oxygenates;PIANO;PONA;gaschromatograph;gasoline;individualhydrocarbonanalysis;oxygenatedfuels;spark-ignitionenginefuels;detailedhydrocarbon
【摘要】:1.1ProceduresAandB:1.1.1TestProceduresAandBprovideforthedeterminationofindividualhydrocarboncomponentsofspark-ignitionenginefuelsandtheirmixturescontainingoxygenateblends(MTBE,ETBE,ethanol,andsoforth.)withboilingrangesupto225oC.Otherlightliquidhydrocarbonmixturestypicallyencounteredinpetroleumrefiningoperations,suchas,blendingstocks(naphthas,reformates,alkylates,andsoforth.)mayalsobeanalyzed;however,statisticaldatawasobtainedonlywithblendedspark-ignitionenginefuels.1.1.2Basedonthecooperativestudyresults,individualcomponentconcentrationsandprecisionaredeterminedintherangeof0.01toapproximately30%masspercent.Theproceduresmaybeapplicabletohigherandlowerconcentrationsfortheindividualcomponents;however,theusershallverifytheaccuracyiftheproceduresareusedforcomponentswithconcentrationsoutsidethespecifiedranges.1.1.3TestProceduresAandBalsodeterminemethanol,ethanol,t-butanolmethylt-butylether(MTBE),ethylt-butylether(ETBE),t-amyl-methyl-ether(TAME)insparkignitionenginefuelsintheconcentrationrangeof1to30mass%.However,thecooperativestudydataprovidedsufficientstatisticaldataforMTBEinProcedureBonly.1.1.4Althoughamajorityoftheindividualhydrocarbonspresentaredetermined,someco-elutionofcompoundsisencountered.Ifthistestmethodisutilizedtoestimatebulkhydrocarbongroup-typecomposition(PONA)theuserofsuchdatashouldbecautionedthatsomeerrorwillbeencounteredduetoco-elutionandalackofidentificationofallcomponentspresent.Samplescontainingsignificantamountsofolefinicornaphthenic,orboth(forexample,virginnaphthas)constituentsaboveN-octanemayreflectsignificanterrorsinPONAtypegroupings.Basedonthegasolinesamplesintheinterlaboratorycooperativestudy,theseproceduresareapplicabletoconcentrationsofolefinstolessthan25mass%.However,someinterferingcoelutionwiththeolefinsaboveC7ispossible,particularlyifblendingcomponentsortheirhigherboilingcutssuchasthosederivedfromfluidcatalyticcracking(FCC)areanalyzed,andthetotalolefincontentmaynotbeaccurate.AppendixX1ofthistestmethodcomparesresultsofthetestprocedureswithothertestmethodsforselectedcomponents,includingolefins,andseveralgrouptypesforseveralinterlaboratorycooperativestudysamples.Althoughbenzene,tolueneandseveraloxygenatesaredetermined,whendoubtfulastotheanalyticalresultsofthesecomponents,confirmatoryanalysiscanbeobtainedbyusingthespecifictestmethodslistedinthereferencesection.Totalolefinsinthesamplesmaybeobtainedorconfirmed,orboth,ifnecessary,byTestMethodD1319(volume%)orothertestmethods,suchasthosebasedonmultidimentionalPONAtypeofinstruments.1.1.5Ifwaterisorissuspectedofbeingpresent,itsconcentrationmaybedetermined,ifdesired,bytheuseofTestMethodD1744orequivalent.Othercompoundscontainingoxygen,sulfur,nitrogen,andsoforthmayalsobepresent,andmayco-elutewiththehydrocarbons.Ifdeterminationofthesespecificcompoundsisrequired,itisrecommendedthattestmethodsforthesespecificmaterialsbeused,suchasTestMethodsD4815andD5599foroxygenates,andTestMethodD5623forsulfurcompoundsorequivalent.1.2ProcedureC1.2.1TestProcedureCprovidesforthedeterminationofindividualhydrocarboncomponentsofspark-ignitionenginefuelswithboilingrangesupto225oC.Otherlightliquidhydrocarbonmixturestypicallyencounteredinpetroleumrefiningoperations,suchas,blendingstocks(naphthas,reformates,alkylates,andsoforth)mayalsobeanalyzed;however,statisticaldatawasobtainedonlywithblendedspark-ignitionenginefuels.Thetablesrel......
【中国标准分类号】:E31
【国际标准分类号】:71_040_50
【页数】:109P.;A4
【正文语种】:
【英文标准名称】:Essentialoils;Analysisbygaschromatographyoncapillarycolumns;Generalmethod
【原文标准名称】:精油毛细管柱气相色谱分析通用法
【标准号】:ISO7609-1985
【标准状态】:现行
【国别】:国际
【发布日期】:1985-12
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC54
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;香精油;气相色谱法
【英文主题词】:Essentialoils;Gaschromatography;Testing;Tests
【摘要】:TheStandardgivesdetailedinformationonallrecurrentparameters,apparatus,products,methodsandformulaefortheanalysis.Themethodconsistsinanalyzingasmallquantityofessentialoilonacolumnofsmalldiameterbutgreatlength,theinsidewallofthecolumnhavingbeenpreviouslycoatedeitherdirectlywithaspecifiedstationaryphaseorwithanimpregnatedsupport.Ifrequireddifferentconstituentsareidentifiedfromtheirretentionindexes.Quantitativedeterminationofspecificconstituentsiscarriedoutbymeasurementofpeakareas.
【中国标准分类号】:Y40
【国际标准分类号】:71_100_60
【页数】:7P.;A4
【正文语种】:英语