ASTM D680 用微量金属的ICPMS分析法使用快速还原浓缩技术对水样品制备的标准实施规程
作者:标准资料网 时间:2024-05-05 14:03:06 浏览:8131
来源:标准资料网
【英文标准名称】:MethodsofTestingandTolerancesforCertainFineStapleCottonGrayGoods
【原文标准名称】:用微量金属的ICPMS分析法使用快速还原浓缩技术对水样品制备的标准实施规程
【标准号】:ASTMD680
【标准状态】:作废
【国别】:
【发布日期】:
【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】:
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:G13
【国际标准分类号】:
【页数】:
【正文语种】:
【英文标准名称】:Firedetectionandfirealarmsystems-Part2:controlandindicatingequipment.
【原文标准名称】:火灾探测和报警系统.第2部分:控制和显示设备
【标准号】:NFS61-982/A1-2007
【标准状态】:现行
【国别】:法国
【发布日期】:2007-01-01
【实施或试行日期】:2007-01-05
【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】:C81
【国际标准分类号】:13_220_20
【页数】:39P;A4
【正文语种】:其他
【英文标准名称】:Electromagneticcompatibility(EMC)-Environment-Compatibilitylevelsinindustrialplantsforlow-frequencyconducteddisturbances
【原文标准名称】:电磁兼容性(EMC).环境.低频干扰的工业厂房的电磁兼容等级
【标准号】:BSEN61000-2-4-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-09-30
【实施或试行日期】:2002-09-30
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电气工程;电磁兼容性;电磁兼容性;工业;交流电网;兼容水平;低电压;电网;规范(验收);电力系统;环境条件;环境条件;低压设备;电压波动;工业设施;影响量;电压降;传输;兼容性;谐波;低频;电压;干扰;低压电源;分类系统;信号传输;电磁学;网络干扰
【英文主题词】:ACnetwork;Classificationsystems;Compatibilitalevel;Compatibility;Definition;Definitions;Electricpowernetworks;Electricpowersystems;Electricalengineering;Electromagneticcompatibility;Electromagnetism;EMC;Environmentalcondition;Environmentalconditions;Harmonics;Industrialfacilities;Industries;Influencequantities;Interferences;Lowfrequencies;Lowvoltage;Lowvoltagemains;Low-voltageinstallations;Networkinterferences;Signaltransmission;Specification(approval);Transmission;Voltage;Voltagedips;Voltagefluctuations
【摘要】:ThispartofIEC61000isconcernedwithconducteddisturbancesinthefrequencyrangefrom0kHzto9kHz.Itgivesnumericalcompatibilitylevelsforindustrialandnon-publicpowerdistributionsystemsatnominalvoltagesupto35kVandanominalfrequencyof50Hzor60Hz.Powersupplysystemsonships,aircraft,offshoreplatformsandrailwaysarenotincluded.Thecompatibilitylevelsspecifiedinthisstandardapplyatthein-plantpointofcoupling.Atthepowerinputterminalsofequipmentreceivingitssupplyfromtheabovesystems,theseveritylevelsofthedisturbancescan,forthemostpart,betakentobethesameasthelevelsatthein-plantpointofcoupling.Insomesituationsthisisnotso,particularlyinthecaseofalongfeederdedicatedtothesupplyofaparticularload,orinthecaseofadisturbancegeneratedoramplifiedwithintheinstallationofwhichtheequipmentformsapart.Compatibilitylevelsarespecifiedforelectromagneticdisturbancesofthetypeswhichcanbeexpectedatanyin-plantpointofcoupling(IPC)withinindustrialplantsorothernon-publicnetworks,forguidanceina)limitstobesetfordisturbanceemissionintoindustrialpowersupplysystems(includingtheplanninglevelsdefinedin3.1.5);NOTE1Averywiderangeofconditionsispossibleintheelectromagneticenvironmentsofindustrialandothernon-publicnetworks.TheseareapproximatedinthisstandardbythethreeclassesdescribedinClause4.However,itistheresponsibilityoftheoperatorofsuchanetworktotakeaccountoftheparticularelectromagneticandeconomicconditions,includingequipmentcharacteristics,insettingtheabove-mentionedlimits.b)thechoiceofimmunitylevelsfortheequipmentwithinthesesystems.Thedisturbancephenomenaconsideredare:–voltagedeviations;–voltagedipsandshortinterruptions;–voltageunbalance;–power-frequencyvariations;–harmonicsuptoorder50;–interharmonicsuptothe50thharmonic;–voltagecomponentsathigherfrequencies(above50thharmonic);–d.c.component;–transientovervoltages.Thecompatibilitylevelsaregivenfordifferentclassesoftheelectromagneticenvironmentdeterminedbythecharacteristicsofthesupplynetwork.
【中国标准分类号】:L06
【国际标准分类号】:33_100_01
【页数】:40P.;A4
【正文语种】:英语
