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ASTM D6748-2002a(2007) 测定由于Phenalenes和Phenalenones的存在引起中间蒸馏燃料的潜在不稳定性的标准试验方法-用便携式光谱仪的快速法

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【英文标准名称】:StandardTestMethodforDeterminationofPotentialInstabilityofMiddleDistillateFuelsCausedbythePresenceofPhenalenesandPhenalenones(RapidMethodbyPortableSpectrophotometer)
【原文标准名称】:测定由于Phenalenes和Phenalenones的存在引起中间蒸馏燃料的潜在不稳定性的标准试验方法-用便携式光谱仪的快速法
【标准号】:ASTMD6748-2002a(2007)
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:D02.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:absorbanceunits;burnerfuel;dieselfuel;infrared;infraredspectrophotometer;marinefuel;middledistillatefuel;potentialinstability;spectrometer;spectrophotometer;storagestability;turbinefuel;visiblespectrophotometer;Automotiveenginef
【摘要】:Storagestabilitydependsoncomplexinteractions.Itvarieswithfeedstocktypeandsource,andtheprocessingused.Therateofdegradationmaynotchangeuniformlywithtemperature.Chemicalreactionsmayleadtoachangeincolorfollowedbytheformationofsolublegumsandinsolublesediments.Insolublesedimentsmayoverloadfilters,andplugnozzlesandinjectors.Thistestmethod,whichdoesnotrequirethetestsampletobeheated,usesaportableapparatusandallowsteststobecarriedoutonsiteorinthelaboratorytogivearesultwithin35min.Thepotentialbeneficialeffectsofstabilityadditivesinfuelsmaynotberecognizedbythistestmethod.Therefore,theactualstoragestabilityofmiddledistillatefuelswithstabilityadditivesmaynotbecorrectlyindicatedbythesetestresults.Theunstablereactivecompounds(phenalenesandphenalenones)detectedbythistestmethodmaybepresentinfuelscontainingcatalyticallycrackedorstraightrunmaterialsandcanaffectthepotentialinstabilityofthefuel.Ifthistestmethodisusedbyanypartyforarapidassessmentofstability,itistheresponsibilityofpartiesconcernedtodecidewhetherornotthisprocedureyieldsmeaningfulresults.InterpretationofresultsandcorrelationwithothertestmethodsisgiveninAppendixX1.1.1Thistestmethodcoversaprocedurefortherapiddeterminationofphenalenesandphenalenonesinmiddledistillatefuels,includingmarine,automotive,heating,andgasturbinefuelsuchasthosespecifiedinSpecificationsD396,D975,D2069,andD2880.Phenalenesandphenalenonesaffectthepotentialinstabilityoffuels,leadingtofueldegradationproductsduringstorage,whichmaycauseperformanceproblems.1.2Thistestmethodisapplicabletobothdyedandundyedfuelsatallpointsinthedistributionchainfromrefinerytoend-user.Itisnotapplicabletofuelscontainingresidualoil.Theportableapparatusallowsthewholetesttobeconductedonsiteorinalaboratoryanddoesnotrequirethetestsampletobeheated.1.3Thistestmethodissuitablefortestingsampleswitharelativeabsorbanceofupto5.00absorbanceunits(AU).Note18212;Theprecisionofthetestmethodhasbeenestablishedonrelativeabsorbanceupto1.00AU.Forrelativeabsorbanceabove1.00AUtheprecisionmaynotapply.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:5P.;A4
【正文语种】:英语


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【英文标准名称】:Prefabricatedreinforcedcomponentsofautoclavedaeratedconcrete
【原文标准名称】:高压加气混凝土的预制加筋组件
【标准号】:BSEN12602-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2008-06-30
【实施或试行日期】:2008-06-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:缩写;加气混凝土;集料;梁;吊杠;CE标记;顶棚;多孔混凝土;柱;组件;混凝土;一致性;一致性评估;建筑;装配产品;碎片;定义;名称与符号;测定;尺寸测量;尺寸选定;尺寸;检验(质量保证);楼板;长度;文字书写;轻质混凝土;承载;作标记;测量;测量技术;不承重的;包装件;预制的;轮廓;牙型;性能;矩形性;加筋;屋顶;规范(验收);正方形;静态的;符号;试验设备;试样;测试;厚度;厚度测量;墙;宽度;窗
【英文主题词】:Abbreviations;Aeratedconcretes;Aggregates;Beams;Booms(gymnasticequipment);CEmarking;Ceilings;Cellularconcrete;Columns;Components;Concretes;Conformity;Conformityassessment;Construction;Constructionalproducts;Debris;Definitions;Designations;Determination;Dimensionalmeasurement;Dimensioning;Dimensions;Examination(qualityassurance);Floors;Length;Letterings;Lightweightconcrete;Loadbearing;Marking;Measurement;Measuringtechniques;Non-loadbearing;Packages;Prefabricated;Profile;Profileshape;Properties;Rectangularity;Reinforcement;Roofs;Specification(approval);Squares;Static;Symbols;Testequipment;Testspecimens;Testing;Thickness;Thicknessmeasurement;Walls;Width;Windows
【摘要】:ThisEuropeanStandardisforprefabricatedreinforcedcomponentsofautoclavedaeratedconcretetobeusedinbuildingconstructionfor:a)Structuralelements:?loadbearingwallcomponents;?retainingwallcomponents;?roofcomponents;?floorcomponents;?linearcomponents(beamsandpiers).b)Non-structuralelements:?nonloadbearingwallcomponents(partitionwalls);?claddingcomponents(withoutfixtures)intendedtobeusedforexternalfacadesofbuildings;?smallboxculvertsusedtoformchannelsfortheenclosureofservices;?componentsfornoisebarriers.Dependingonthetypeandintendeduseofelementsforwhichthecomponentsareutilised,thecomponentscanbeapplied-inadditiontotheirloadbearingandencasingfunction-forpurposesoffireresistance,soundinsulationandthermalinsulationindicatedintherelevantclausesofthisEuropeanStandard.Componentscoveredbythisstandardareonlyintendedtobesubjectedtopredominantlynon-dynamicactions,unlessspecialmeasuresareintroducedintherelevantclausesofthisEuropeanStandard.Theterm"reinforced"relatestoreinforcementusedforbothstructuralandnon-structuralpurposes.ThisEuropeanStandarddoesnotcover:?rulesfortheapplicationofthesecomponentsinstructures;?joints(excepttheirstrengthandintegrityEofresistancetofire);?fixtures;?finishesforexternalcomponents,suchastiling.NOTEAACcomponentsmaybeusedinnoisebarriersiftheyaredesignedtofulfilalsotherequirementsofEN14388.
【中国标准分类号】:Q13
【国际标准分类号】:91_100_30
【页数】:170P.;A4
【正文语种】:英语


【英文标准名称】:Low-pressurehoseassembliesforusewithmedicalgases
【原文标准名称】:医疗用气体设备的低压软管组件
【标准号】:BSEN739-1998
【标准状态】:作废
【国别】:英国
【发布日期】:1998-06-15
【实施或试行日期】:1998-06-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:包装;作标记;管道;管接头;试验设备;工作压力;流量测量;流量率;使用说明;兼容性;寿命;医疗设备;变形;管道配件;燃气管道;软管接头;名称与符号;挠性;管道工程系统;试验条件;医疗真空导管装置;压缩气体;压力试验;漏泄试验;色码;直径;柔性管;机械试验;材料强度;安全措施;设计
【英文主题词】:Applications;Breathingequipment;Codes;Codification;Colourcodes;Connectingassemblies;Dataofthemanufacturer;Definitions;Design;Encoding;Flexible;Flexiblematerials;Flexiblepipes;Hoseassemblies;Hoseconnections;Inscription;Lowpressure;Lowpressuregascontainers;Materialsspecification;Medicalgases;Packages;Rangesofpressure;Specification(approval);Strengthofmaterials;Supplysystems;Testing;Use
【摘要】:1ThisEuropeanStandardspecifiesrequirementsforlow-pressurehoseassembliesintendedforusewiththefollowingmedicalgases:—oxygen;—nitrousoxide;—airforbreathing;—helium;—carbondioxide;—xenon;—specifiedmixturesofthegaseslistedabove;—airfordrivingsurgicaltools;—nitrogenfordrivingsurgicaltools;—vacuum.Itisintendedespeciallytoensuregas-specificityandtopreventcross-connectionbetweendifferentgases.Thesehoseassembliesareintendedtobeusedinthepressurerangebetween300kPaand1400kPaforcompressedmedicalgasesandbetween10kPaand100kPaabsolutepressureforvacuum.2ThisEuropeanStandarddoesnotspecifytheintendedusesofhoseassemblies.Someexamplesoftheintendedusesspecifiedinotherstandardsareasfollows:a)betweenaterminalunitandmedicalequipment(seeEN737-1,prEN740,EN794-1);b)betweenthefixedpipelinesystemandaterminalunitofthatsystem(prEN737-3,EN793);c)betweenaterminalunitandasecondterminalunit(seeprEN737-3);d)betweenanemergencysupplyandanemergencyandmaintenanceinletpointofapipelinesystem(seeEN738-1,prEN737-3);e)betweenanemergencysupplyandmedicalequipment(seeEN738-1,prEN740,EN794-1).3ThisEuropeanStandardspecifiesthedimensionsofnon-interchangeablescrew-threaded(NIST)connectors.4ThisEuropeanStandarddoesnotspecify:—dimensionsofprobesandofthematingpartsofthesocket(seeprEN737-6);—requirementsforhoseassembliesforanaestheticgasscavengingsystems;—requirementsforcoaxialhosesusedforthesupplyanddisposalofairfordrivingsurgicaltools;—requirementsforelectricalconductivity.
【中国标准分类号】:C47
【国际标准分类号】:11_040_10;23_040_70
【页数】:28P;A4
【正文语种】:英语