DIN EN 14994-2007 气爆泄压保护系统
时间:2024-05-01 04:36:14 来源: 标准资料网 作者：标准资料网 阅读：8405
【英文标准名称】:GasexplosionventingprotectivesystemsEnglishversionofDINEN14994:2007-05
【原文标准名称】:气爆泄压保护系统
【标准号】:DINEN14994-2007
【标准状态】:现行
【国别】:德国
【发布日期】:2007-05
【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】:通风;喷气管;抗压强度;定义;设计;测定;外壳;环境条件;爆炸压力;防爆安全;爆炸;爆炸物;火焰传播;气爆;气体混合物;气体;影响因素;初始压力;内压力;低压;作标记;数学计算;最大值;开口;压力;压力测量(流体);压力释放;压力上升;保护系统;安全工程;规范(验收);测试;泄压口
【英文主题词】:Aeration;Blow-offpipes;Compressivestrength;Definition;Definitions;Design;Determination;Enclosures;Environmentalcondition;Explosionpressure;Explosionsecurity;Explosions;Explosives;Flamepropagation;Gasexplosion;Gasmixtures;Gases;Influencefactors;Initialpressure;Internalpressure;Lowpressure;Marking;Mathematicalcalculations;Maximumvalue;Openings;Pressure;Pressuremeasurement(fluids);Pressurereleases;Pressurerise;Protectionsystems;Safetyengineering;Specification(approval);Testing;Ventopenings
【摘要】:ThisEuropeanStandardspecifiesthebasicdesignrequirementsfortheselectionofagasexplosionventingprotectivesystem.ThisEuropeanStandard,EN14797andEN14460formaseriesofthreestandardswhichareusedtogether.NOTE1Thesethreestandardstogetherrepressenttheconcepttheconceptpfgasexplosionventing.NOTE2ToavoidtransferofexplosionstoothercommunicatingequipmentoneshouldalsoconsiderapplyingprEN15089.ThisEuropeanStandardisapplicableto:-ventsizingtoprotectagainsttheinternslpressureeffectsofagasexplosion;-flameandpressureeffectsoutsidetheenclosure;-recoilforces;-influenceofventducts;-influenceofinitialtemperatureandpressure.ThisEuropeanStandarddoesnotprovidedesignandapplicationrulesagainsteffectsgeneratedbydetonationreactionsorrunawayexothermicreactionsincludingdecompositioninthegasphase.ThisEuropeanStandardisnotapplicableto:-firerisksarisingeitherfrommaterialsprocessed,usedorreleasedbytheequipmentorfrommaterialsthatmakeupequipmentandbuildings;-design,constructionandtestingofexplosionventingdevices,whichareusedtoachieveexplosionventing﹤up1﹚﹥;-protectionagainstoverpressurescausedbueventssuchasoverfilling,overpressurisation,fireengulfment,overheatingetc.NOTE3ProtectionbyventingagainstdustandhybridexplosionsisspecifiedinEN14491.
【中国标准分类号】:C66
【国际标准分类号】:13_240
【页数】:29P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminationofReactivityofUnsaturatedPolyestersandVinylEstersat180.0F[82.2176;C]
【原文标准名称】:在180.0°F[82.2°C]测定不饱和聚脂和乙烯基酯的反应的标准试验方法
【标准号】:ASTMD7029-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D20.18
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:curetime;geltime;initiator;intervaltime;peakexotherm;resin;resinreactivity;SPIgeltime;thermoset;unsaturatedpolyester;vinylester;Exothermictemperatureanalysis;Gelation;Reactivity;Thermosettingresins
【摘要】:Thistestmethodisusedtomeasurethereactivityofdifferentlotsofunsaturatedpolyesterandvinylesterresins.Theinformationprovidedbythistestcanbeusedforassessingthepredictedperformanceofaresinwhenusedinelevatedtemperatureaspartoftheprocessusedtoconverttheresinintoafinishedproduct.Themethodisusedinresearchanddevelopmentbycompaniesthatmanufactureresinsandforincomingqualitycontrolcompaniesusingthesepolymersasrawmaterialsforproduction.ThemethodisbasedonthemethodswhichwerepreviouslyoutlinedintheHandbookofReinforcedPlastics,x201C;ProcedureforRunningExothermCurvesUsingtheBlockTestMethodx201D;publishedbytheSocietyofthePlasticsIndustry.1.1Thisstandardprovidesastandardizedtestmethodfordeterminingthegelationandexothermcurveofunsaturatedpolyesterandvinylesterresins.Thismethodprovidesguidanceformeasurementofthex201C;Standard180x00B0;F(82.2x00B0;C)ExothermCurvex201D;alongwithinformationonvariancesofthemeasurementwhichmayberequiredforspecialresins.Thistestmethodprovidesinformationconcerningthereactivityofunsaturatedpolyesterandvinylesterresinsastheygothroughpolymerizationaftermixingwiththeinitiator.Note18212;ThereisnoknownISOequivalenttothisstandard,althoughISO584issimilar.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:71_080_70
【页数】:5P.;A4
【正文语种】:英语
Product Code:SAE ARP5598
Title:Unauthorized Laser Illuminations: Pilot Operational Procedures
Issuing Committee:G10-Ol Operational Laser Committee
Scope:This document addresses the operational safety and human factors aspects of unauthorized laser illumination events in navigable airspace. The topics addressed include operational procedures, training, and protocols that flight crew members should follow in the event of a laser exposure. Of particular emphasis, this document outlines coping strategies for use during critical phases of flight. Although lasers are capable of causing retinal damage, most laser cockpit illuminations, to date, has been relatively low in irradiance causing primarily startle reactions, visual glare, flashblindness and afterimages. Permanent eye injuries from unauthorized laser exposures have been extremely rare. This document describes pilot operational procedures in response to the visual disruptions associated with low to moderate laser exposures that pilots are most likely to encounter during flight operations. With education and training, pilots can take actions that safeguard both their vision and the safety of their passengers.