【英文标准名称】:Informationtechnologyequipment—Immunitycharacteristics—Limitsandmethodsofmeasurement
【原文标准名称】:信息技术.抗干扰特性.测量的限值和方法
【标准号】:BSEN55024-1998+A2-2003
【标准状态】:现行
【国别】:英国
【发布日期】:1998-12-15
【实施或试行日期】:1998-12-15
【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】:计算机;定义;定义(术语);电气工程;环境条件;评估;抗扰性;信息技术;抗干扰度;干扰抑制;极限(数学);测量技术;无线电干扰测量;电信;测试
【英文主题词】:Computers;Definition;Definitions;Electricalengineering;Environmentalcondition;Evaluations;Immunity;Informationtechnology;Interferencerejections;Interferencesuppression;Limits(mathematics);Measuringtechniques;Radiointerferencemeasurements;Telecommunications;Testing
【摘要】:ThisCISPRpublicationappliestoinformationtechnologyequipment(ITE)asdefinedinCISPR22.?HarmonizedstandardspreparedbyETSI,whichcovertheimmunityrequirementsfortelecommunicationsnetworkequipmenttakeprecedenceoverthisstandard.?ProceduresaredefinedforthemeasurementofITEandlimitsarespecifiedwhicharedevelopedforITEandwithinthefrequencyrangefrom0Hzto400GHz.Theobjectofthispublicationistoestablishrequirementswhichwillprovideanadequatelevelofintrinsicimmunitysothattheequipmentwilloperateasintendedinitsenvironment.Forexceptionalenvironmentalconditions,specialmitigationmeasuresmayberequired.Owingtotestingandperformanceassessmentconsiderations,sometestsarespecifiedindefinedfrequencybandsoratselectedfrequencies.Equipmentwhichfulfilstherequirementsatthesefrequenciesisdeemedtofulfiltherequirementsintheentirefrequencyrangefrom0Hzto400GHzforelectromagneticphenomena.Theobjectofthispublicationistodefinetheimmunitytestrequirementsforequipmentdefinedinthescopeinrelationtocontinuousandtransient,conductedandradiateddisturbances,includingelectrostaticdischarges(ESD).Thetestrequirementsarespecifiedforeachportconsidered.NOTE1Safetyconsiderationsarenotcoveredinthispublication.NOTE2Inspecialcases,situationswillarisewherethelevelofdisturbancemayexceedthelevelsspecifiedinthispublication,forexamplewhereahand-heldtransmitterisusedinproximitytoanequipment.Intheseinstancesspecialmitigationmeasuresmayhavetobeemployed.
【中国标准分类号】:L06
【国际标准分类号】:33_100_20;35_020
【页数】:42P.;A4
【正文语种】:英语


【英文标准名称】:Petroleumandnaturalgasindustries-Drillingfluidmaterials-Specificationsandtests
【原文标准名称】:石油和天然气工业钻井液体材料规范和测试
【标准号】:ISO13500-1998
【标准状态】:作废
【国别】:国际
【发布日期】:1998-07
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC67
【标准类型】:()
【标准水平】:()
【中文主题词】:物理性能;天然气开采;钻用清洗液;钻探;试验;石油工业;液体;井;石油开采;天然气工业;定义;定义
【英文主题词】:
【摘要】:ThisInternationalStandardcoversphysicalpropertiesandtestproceduresformaterialsmanufacturedforuseinoil-andgas-welldrillingfluids.Thematerialscoveredarebarite,haematite,bentonite,nontreatedbentonite,OCMAgradebentonite,attapulgite,sepiolite,technicalgradelow-viscositycarboxymethylcellulose(CMC-LVT),technicalgradehigh-viscositycarboxymethylcellulose(CMC-HVT),andstarch.ThisInternationalStandardisintendedfortheuseofmanufacturersofnamedproducts.
【中国标准分类号】:E04
【国际标准分类号】:75_180_10
【页数】:66P;A4
【正文语种】:英语