DIN EN ISO 7090-2000 倒角平垫圈.标准系列.产品等级A
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【英文标准名称】:Plainwashers,chamfered-Normalseries,ProductgradeA(ISO7090:2000);GermanversionENISO7090:2000
【原文标准名称】:倒角平垫圈.标准系列.产品等级A
【标准号】:DINENISO7090-2000
【标准状态】:现行
【国别】:德国
【发布日期】:2000-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;规范(验收);公差(测量);倒棱的;斜角规;交货条件;尺寸;垫圈;特性;浅;名称与符号;规范;产品等级;可拆零件
【英文主题词】:Bevels(instruments);Chamfered;Deliveryconditions;Designations;Dimensions;Fasteners;Productgrades;Properties;Separatingparts;Shallow;Specification(approval);Specifications;Tolerances(measurement)
【摘要】:Thedocumentcontainsdimensionalandtechnicalrequirementsofplainwashers,chamfered,normalseriesandspecifiestheirdesignation.
【中国标准分类号】:J13
【国际标准分类号】:21_060_30
【页数】:8P;A4
【正文语种】:德语
【英文标准名称】:ElectromagneticcompatibilityandRadiospectrumMatters(ERM)-TerrestrialFlightTelecommunicationsSystem(TFTS)-Part3:Speechservices,radiointerface(EndorsementoftheEnglishversionETS300326-3:1998-08asGermanstandard)
【原文标准名称】:电磁兼容性和无线电频谱情况.地面航空通信系统(TFTS).第3部分:语音通信设备和无线电接口
【标准号】:DINETS300326-3-2001
【标准状态】:现行
【国别】:德国
【发布日期】:2001-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:无线电装置;陆地的;无线电设备;规范(验收);飞机无线电设备;语言设备;电信;无线电话;定义;电气工程;电磁兼容性
【英文主题词】:Aircraftradioservices;Definition;Definitions;Electricalengineering;Electromagneticcompatibility;Radioequipment;Radiosystems;Radiotelephones;Specification(approval);Speechservices;Telecommunica
【摘要】:Thedocumentspecifiesrequirementsinthetelecommunicationssector.
【中国标准分类号】:M34;L06
【国际标准分类号】:33_060_99;33_100_01;49_090
【页数】:1P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminationofHydrogenPeroxideandCombinedOrganicPeroxidesinAtmosphericWaterSamplesbyPeroxidaseEnzymeFluorescenceMethod
【原文标准名称】:用过氧化物酶荧光法测定大气水样中过氧化氢和合成有机过氧化物的标准试验方法
【标准号】:ASTMD6363-1998(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:D22.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atmosphericwater;derivatization;hydrogenperoxide;hydroperoxide;peroxide;sampling;Atmosphericwateranalysis;Fluorescence--atmosphericanalysis;Horseradishperoxidasederivatization;Hydrogenperoxide(H2O2);Organicperoxi
【摘要】:Hydrogenperoxide(formedphotochemicallyintheatmosphere)isaprimaryoxidizerofdissolvedsulfurdioxideinatmosphericwater.DetectionofH2O2inatmosphericwaterisusefulforinferringgas-phaseH2O2concentrationsandforassessingtherelativeimportanceofvariousacidifyingmechanismsunderspecificatmosphericconditions.Hydroperoxidesinsamplestobeanalyzedareunstableinwaterandcandecayrapidlyduetobacterialactionorchemicalreactionwithotherconstituents.Thetestmethodincludesproceduresforsamplederivatizationandmethodsforestimatingandcorrectingforhydroperoxidedecay.1.1Thistestmethodcoversthedeterminationofhydroperoxides,whichincludehydrogenperoxide(H2O2)andcombinedorganicperoxides,insamplesofatmosphericwaterbythemethodofhorseradishperoxidasederivatizationandfluorescenceanalysisofthederiveddimer.,1.2Therangeofapplicablehydrogenperoxideconcentrationswasdeterminedtobe0.6-176.0x00D7;10x2212;6Mfromindependentlaboratorytestsofthetestmethod.1.3Theprimaryuseofthetestmethodisforhydrogenperoxide,butitmayalsobeusedtoquantitateorganichydroperoxides.Determinationsoforganichydroperoxideconcentrationlevelsupto30x00D7;10x2212;6Mmaybeadequatelyobtainedbycalibrationwithhydrogenperoxide.,Whileorganichydroperoxideshavenotbeendetectedatsignificantconcentrationlevelsinrainorcloudwater,theirpresencemaybetestedbyoperationofthetestmethodwiththeadditionofcatalasefordestructionofH2O2.1.4Becauseoftheinstabilityofhydroperoxidesinatmosphericwatersamples,propersamplecollection,at-collectionderivatization,andstringentqualitycontrolareessentialaspectsoftheanalyticalprocess.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:6P.;A4
【正文语种】:英语
