NF X31-008-6-2009 土壤质量取样.第6部分:用于实验室中微生物处理过程,生物量和多样性评定的有氧条件下土壤的收集,处理和存储指南
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【英文标准名称】:Soilquality-Sampling-Part6:guidanceonthecollection,handlingandstorageofsoilunderaerobicconditionsfortheassessmentofmicrobiologicalprocesses,biomassanddiversityinthelaboratory.
【原文标准名称】:土壤质量取样.第6部分:用于实验室中微生物处理过程,生物量和多样性评定的有氧条件下土壤的收集,处理和存储指南
【标准号】:NFX31-008-6-2009
【标准状态】:现行
【国别】:法国
【发布日期】:2009-06-01
【实施或试行日期】:2009-06-13
【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】:好气菌;生物测定;生物分析和试验;生物试验;生物量;土壤组分;定义;耐久性;评定;评估;;实验室测试;实验室试验;实验室试验;微生物分析;微生物学;质量;循环的;抽样方法;土壤分析;土壤采样;土壤试验;土壤;储存;处理
【英文主题词】:Aerobicbacteria;Bioassay;Biologicalanalysisandtesting;Biologicaltests;Biomass;Compositionoftheground;Definitions;Evaluations;Laboratoryconditions;Laboratorytesting;Laboratorytests;Microbiologicalanalysis;Microbiology;Quality;Samplingmethods;Soilanalysis;Soilsampling;Soiltesting;Soils;Storage;Treatment
【摘要】:
【中国标准分类号】:Z18
【国际标准分类号】:13_080_05
【页数】:12P;A4
【正文语种】:其他
【英文标准名称】:Capacitorsforpowerelectronics
【原文标准名称】:电力电容器
【标准号】:BSEN61071-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2008-02-29
【实施或试行日期】:2008-02-29
【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】:交流电流;电容器;定义;直流电流;电气工程;电子工程;电子设备及元件;作标记;操作频率;过载电流;过电压保护;并联;电力电容器;电力电子学;质量要求;额定电压;安全要求;串联;设备电压;规范(验收);测试
【英文主题词】:Alternatingcurrent;Capacitors;Definition;Definitions;Directcurrent;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Marking;Operatingfrequencies;Overloadcurrent;Overvoltageprotection;Parallelconnection;Powercapacitors;Powerelectronics;Qualityrequirements;Ratedvoltages;Safetyrequirements;Seriesconnection;Servicevoltage;Specification(approval);Testing
【摘要】:ThisInternationalStandardappliestocapacitorsforpowerelectronicsapplications.Theoperatingfrequencyofthesystemsinwhichthesecapacitorsareusedisusuallyupto15kHz,whilethepulsefrequenciesmaybeupto5to10timestheoperatingfrequency.Thestandarddistinguishesbetweena.c.andd.c.capacitorswhichareconsideredascomponentswhenmountedinenclosures.Thisstandardcoversanextremelywiderangeofcapacitortechnologiesfornumerousapplications,e.g.overvoltageprotection,d.c.anda.c.filtering,switchingcircuits,d.c.energystorage,auxiliaryinverters,etc.Thefollowingareexcludedfromthisstandard:–capacitorsforinductionheat-generatingplantsoperatingatfrequenciesbetween40Hzand24000Hz(seeIEC60110-1andIEC60110-2);–capacitorsformotorapplicationsandthelike(seeIEC60252-1andIEC60252-2);–capacitorstobeusedincircuitsforblockingoneormoreharmonicsinpowersupplynetworks;–smalla.c.capacitorsasusedforfluorescentanddischargelamps(seeIEC61048andIEC61049);–capacitorsforsuppressionofradiointerference(seeIEC60384-14);–shuntcapacitorsfora.c.powersystemshavingaratedvoltageabove1000V(seeIEC60871-1andIEC60871-2);–shuntpowercapacitorsoftheself-healingtypefora.c.systemshavingaratedvoltageuptoandincluding1000V(seeIEC60831-1andIEC60831-2);–shuntpowercapacitorofthenon-self-healingtypefora.c.systemshavingaratedvoltageuptoandincluding1000V(seeIEC60931-1andIEC60931-2);–electroniccapacitorsnotusedinpowercircuits;–seriescapacitorsforpowersystems(seeIEC60143);–couplingcapacitorsandcapacitorsdividers(seeIEC60358);–capacitorsformicrowaveovens(seeIEC61270-1);–capacitorsforrailwayapplications(seeIEC61881).ExamplesofapplicationsaregiveninClause9.1.
【中国标准分类号】:K42
【国际标准分类号】:31_060_70
【页数】:48P.;A4
【正文语种】:英语
【英文标准名称】:ReferenceRadiographsforHigh-StrengthCopper-BaseandNickel-CopperAlloyCastings
【原文标准名称】:高强度铜基和镍铜合金铸件用参考射线照片
【标准号】:ASTME272-1995
【标准状态】:作废
【国别】:美国
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:合金;有色金属;有色金属;铜合金;射线摄影;铸件;镍;无损检验;金属;试验;铜
【英文主题词】:castings;copper;non-ferrousmetals;nickel;testing;non-destructivetesting;metals;radiographs;alloys;copperalloys;nonferrousmetals
【摘要】:
【中国标准分类号】:H62
【国际标准分类号】:77_140_90
【页数】:
【正文语种】:英语
