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SC/T 3010-2001 海带碘含量的测定

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基本信息
标准名称:海带碘含量的测定
英文名称:Determination of iodine in kelp
中标分类: 农业、林业 >> 水产、渔业 >> 水产、渔业综合
发布部门:中华人民共和国农业部
发布日期:2001-09-27
实施日期:2001-11-01
首发日期:1900-01-01
作废日期:1900-01-01
起草单位:中国水产科学研究院黄海水产研究所
出版社:中国标准出版社
出版日期:2004-04-19
页数:6
书号:155066.2-14144
适用范围

本标准规定了淡干海带中碘含量测定的组批规则、抽样方法、测定方法及结果处理。本标准适用于海带生产企业和制碘工业淡干海带中碘含量的测定,其他淡干藻类可参照执行。

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所属分类: 农业 林业 水产 渔业 水产 渔业综合
【英文标准名称】:StandardGuideforMutualInductanceBridgeApplicationsforWallThicknessDeterminationsinBoilerTubing
【原文标准名称】:互感电桥测定锅炉管壁厚度的标准指南
【标准号】:ASTME2337/E2337M-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:E07.07
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:桥接电路;电感测量;互感桥;壁厚度;无铁磁性钢;桥技术;铁磁性材料/测试;锅炉
【英文主题词】:bridgecircuit;inductancemeasurement;mutualinductancebridge;wallthickness;Nonferromagneticsteel;Wallthickness;Bridgetechnique;Ferromagneticmaterial/testing;Inductancemeasurement;Boilerfurnaces;Mutualinductancebridge
【摘要】:Theprimaryadvantageofamutualinductancebridgeisitsabilitytomakewallthicknessmeasurementsquickly.Sincesurfacecontaminants(ashandslag)arenotferromagnetic,theydonotinterferewiththeelectromagneticmeasurement.Asaresult,thesurfacerequiresnopreparation.Sinceawidevarietyofsteelsareemployedinaboiler,anin-situstandardizationusingthematerialundermeasurementasthereferenceisadequate.1.1Thisguidedescribesaprocedureforobtainingrelativewallthicknessindicationsinferromagneticandnon-ferromagneticsteelsusingthemutualinductancebridgemethod.Theprocedureisintendedforusewithinstrumentscapableofinducingtwosubstantiallyidenticalmagneticfieldsandnotingthechangeininductanceresultingfromdifferingamountsofsteel.Itisusedtodistinguishacceptablewallthicknessconditionsfromthosewhichcouldplacetubularvesselsorpipingatriskofburstingunderhightemperatureandpressureconditions.1.2ThisguideisintendedtosatisfytwogeneralneedsforusersofindustrialMutualInductanceBridge(MIB)equipment:(1)theneedforatutorialguideaddressingthegeneralprinciplesofMutualInductanceBridgesastheyapplytoindustrialpiping;and(2)theneedforaconsistentsetofMIBperformanceparameterdefinitions,includinghowtheseperformanceparametersrelatetoMIBsystemspecifications.Potentialusersandbuyers,aswellasexperiencedMIBexaminers,willfindthisguideausefulsourceofinformationfordeterminingthesuitabilityofMIBforparticularexaminationproblems,forpredictingMIBsystemperformanceinnewsituations,andfordevelopingandprescribingnewscanprocedures.1.3ThisguidedoesnotspecifytestobjectsandtestproceduresforcomparingtherelativeperformanceofdifferentMIBsystems;nordoesittreatelectromagneticexaminationtechniques,suchasthebestselectionofscanparameters,thepreferredimplementationofscanprocedures,theanalysisofimagedatatoextractwallthicknessinformation,ortheestablishmentofaccept/rejectcriteriaforanewobject.1.4Standardpracticesandmethodsarenotwithinthepurviewofthisguide.Thereaderisadvised,however,thatexaminationpracticesaregenerallypartandapplicationspecific,andindustrialMIBusageisnewenoughthatinmanyinstancesaconsensushasnotyetemerged.ThesituationiscomplicatedfurtherbythefactthatMIBsystemhardwareandperformancecapabilitiesarestillundergoingsignificantevolutionandimprovement.Consequently,anattempttoaddressgenericexaminationproceduresiseschewedinfavorofprovidingathoroughtreatmentoftheprinciplesbywhichexaminationmethodscanbedevelopedorexistingonesrevised.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.
【中国标准分类号】:J98
【国际标准分类号】:27_060_30
【页数】:5P.;A4
【正文语种】:


【英文标准名称】:Electromagneticcompatibility(EMC)-Part4-11:Testingandmeasurementtechniques-Voltagedips,shortinterruptionsandvoltagevariationsimmunitytests
【原文标准名称】:电磁兼容性(EMC).第4-11部分:试验和测量技术.电压暂降、短时中断及电压变化抗扰度试验
【标准号】:IEC61000-4-11-2004
【标准状态】:现行
【国别】:国际
【发布日期】:2004-03
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC77A
【标准类型】:()
【标准水平】:()
【中文主题词】:电力系统;中断;干扰抑制;电气器具;电网;电子仪器;电磁兼容性;定义;电磁试验;电气工程;测量技术;压力降;电流表;电压波动;低压电源;EMC;抗扰性;试验;电气设备
【英文主题词】:Automaticreclosing;Currentmeters;Definitions;Electricappliances;Electricpowernetworks;Electricpowersystems;Electricalappliances;Electricalengineering;Electromagneticcompatibility;Electromagnetictests;Electronicinstruments;EMC;Immunity;Interferencerejections;Interruptions;Lowvoltagemains;Measuringtechniques;Short-time;Testing;Voltage;Voltagedips;Voltagefluctuations
【摘要】:ThispartofIEC61000definestheimmunitytestmethodsandrangeofpreferredtestlevelsforelectricalandelectronicequipmentconnectedtolow-voltagepowersupplynetworksforvoltagedips,shortinterruptions,andvoltagevariations.Thisstandar
【中国标准分类号】:L06
【国际标准分类号】:33_100_01
【页数】:60P;A4
【正文语种】:英语