DIN 51756-7-1986 汽油检验.第7部分:使用CFR发动机法对酒精和酒精/燃料混合物抗震性(辛烷值)的测定
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【英文标准名称】:Testingofgasolines;determinationofknockcharacteristics(octanenumber)ofalcoholsandalcohol/fuelmixturesusingtheCFRengine
【原文标准名称】:汽油检验.第7部分:使用CFR发动机法对酒精和酒精/燃料混合物抗震性(辛烷值)的测定
【标准号】:DIN51756-7-1986
【标准状态】:现行
【国别】:德国
【发布日期】:1986-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:辛烷值;抗爆率;试验;脂族醇;汽油;试验设备;机动车燃料;爆震率
【英文主题词】:Aliphaticalcohols;Antiknockratings;Automotivefuels;Gasoline;Octanenumber;Testequipment;Testing
【摘要】:Thedeterminationoftheanti-knockcharacteristicsofalcoholandfuelscontainingalcoholsisinprincipledoneinaccordancewithDIN51756part2ontheCFR-test-engine.DIN51756part7describesavariationoftheoriginalmethod,namelytheuseofacontrolledneedlejetofthecarburettorinsteadofthelevelcontrolwithcalibratedhorizontaljetfortheadjustmentoftheair-fuelratioformaximumengineknock.Inadditionainletmanifoldheatingisusedinordertoadjustthemixturetemperaturetothegreaterheatlossduringeraporationofalcohols(especiallymethanol).#,,#
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:3P.;A4
【正文语种】:德语
【英文标准名称】:Opticalfibres-Part2-50:Productspecifications-SectionalspecificationforclassBsingle-modefibres
【原文标准名称】:光学纤维.第2-50部分:产品规范.B级单模光纤用分规范
【标准号】:IEC60793-2-50-2008
【标准状态】:作废
【国别】:国际
【发布日期】:2008-05
【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/SC86A
【标准类型】:()
【标准水平】:()
【中文主题词】:类别;设计;尺寸;电气工程;环境条件;光纤;总论;信息传递;测量技术;机械性能;文电处理;单模纤维;光波导;光电子学;产品规范;特性;分规范;规范;规范(验收);通信;测试;传输特性
【英文主题词】:Categories;Design;Dimensions;Electricalengineering;Environmentalconditions;Fibreoptics;Generalsection;Informationtransfer;Measuringtechniques;Mechanicalproperties;Messagehandling;Monomodefibres;Opticalwaveguides;Optoelectronics;Productspecifications;Properties;Sectionalspecification;Specification;Specification(approval);Telecommunication;Testing;Transmissioncharacteristics
【摘要】:ThispartofIEC60793isapplicabletoopticalfibretypesB1.1,B1.2,B1.3,andcategoriesB2,B4,B5andB6.AmapillustratingtheconnectionofIECdesignationstoITU-TdesignationsisshowninAnnexI.Thesefibresareusedorcanbeincorporatedininformationtransmissionequipmentandopticalfibrecables.Threetypesofrequirementsapplytothesefibres:~generalrequirements,asdefinedinIEC60793-2;~specificrequirementscommontotheclassBsingle-modefibrescoveredinthisstandardandwhicharegiveninClause3;~particularrequirementsapplicabletoindividualfibretypesorspecificapplications,whicharedefinedinAnnexesAtoG.~Forsomefamilyspecifications,therearesub-categoriesthataredistinguishedonthebasisofdifferenceintransmissionattributespecifications.Thedesignationsforthesesub-categoriesaredocumentedintheindividualfamilyspecifications.
【中国标准分类号】:M33
【国际标准分类号】:33_180_10
【页数】:74P;A4
【正文语种】:英语
【英文标准名称】:Waterquality-Determinationofdalapon,trichloroaceticacidandselectedhaloaceticacids-Methodusinggaschromatography(GC-ECDand/orGC-MSdetection)afterliquid-liquidextractionandderivatization
【原文标准名称】:水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液-液萃取和衍生后的气相色谱法(GC-ECD和/或GC-MS检测法)
【标准号】:ISO23631-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-02
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC147
【标准类型】:()
【标准水平】:()
【中文主题词】:分析;校正;化学分析和试验;水化学;衍生作用;含量测定;污泥检验;废水检验;萃取;气相色谱法;气相色谱仪;地下水;卤乙酸;解释;质谱学;饮用水;抽样方法;污水;污泥;标准方法;物质;地表水;游泳池水;试验设备;试验;水;水质分析;水常规;水质;水质试验
【英文主题词】:Analysis;Calibration;Chemicalanalysisandtesting;Chemistryofwater;Derivatization;Determinationofcontent;Examinationofsludge;Examinationofwastewater;Extraction;Gaschromatography;Gas-phasechromatograph;Groundwater;Halogenaceticacid;Interpretations;Massspectrometry;Potablewater;Samplingmethods;Sewage;Sludge;Standardmethods;Substances;Surfacewater;Swimmingpoolwater;Testequipment;Testing;Water;Wateranalysis;Waterpractice;Waterquality;Watertesting
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofdalapon,trichloroaceticacid(TCA)andselectedhaloaceticacids(seeTable1)ingroundwateranddrinkingwaterbygaschromatography(GC-ECDand/orGC-MSdetection)afterliquid-liquid-extractionandderivatizationusingdiazomethane.Dependingonthematrix,themethodisapplicabletoaconcentrationrangefrom0,5μg/lto10μg/l.ThevalidatedreportinglimitofTCAanddalaponisabout0,05μg/l(seeTableC.1).Detectionbyelectron-capturedetector(ECD)ingeneralleadstolowerdetectionlimits.Detectionbymassspectrometry(MS)allowsanalyteidentification.ThismethodmaybeapplicableaswelltocompoundsnotmentionedinTable1ortoothertypesofwater.However,itisnecessarytoverifytheapplicabilityofthismethodforthesespecialcases.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:24P;A4
【正文语种】:英语
