【英文标准名称】:StandardClassificationforRatingOutdoor-IndoorSoundAttenuation
【原文标准名称】:室外-室内声音衰减评级标准分类
【标准号】:ASTME1332-2010a
【标准状态】:现行
【国别】:美国
【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】:E33.03
【标准类型】:(Classification)
【标准水平】:()
【中文主题词】:
【英文主题词】:A-weighting;aircraft;buildings;classification;facade;freeway;indoor;insulation;isolation;loudness;noise;outdoor-indoornoiseisolation(OINIC(&x03B8;));outdoor-indoortransmissionclass(OITC);outdoor;
【摘要】:Thisclassificationprovidesasinglenumberratingfortransmissionlossornoisereductiondatathathavebeenmeasuredorcalculated.ThisratingisbasedonthedifferencebetweentheoverallA-weightedsoundlevelofthesoundspectrumgiveninTable1andtheoverallA-weightedsoundlevelofthespectrumthatresultsfromarithmeticallysubtractingthetransmissionlossornoisereductiondatafromthisspectrum.Thespectrumshapeisanaverageofthreetypicalspectrafromtransportationsources(aircrafttakeoff,freeway,andrailroadpassby).AstudyshowedthatthisclassificationcorrelatedwellwiththeA-weightedandloudnessreductions(seeISO532)calculatedforeachofthetypicalspectrafortheone-thirdoctavebandrangeof50to5000Hz.Thecalculatednumericvalueoftheratingisbasedonthesoundtransmissionlossornoisereductionvaluesforaparticularspecimenanddependsonlyonthatdataandtheshapeofthereferencesourcespectrumusedinthecalculation.ThevaluesshowninTable1haveanarbitraryreferencelevel.Single-numberratingsshouldalwaysbeusedwithcaution.Specimenshavingthesameratingcanresultindifferentindoorspectradependingonthevariationoftheirtransmissionlosswithfrequency.Also,iftheactualspectrumoftheoutdoorsoundisdifferentfromthatassumedinTable1,theoverallA-weightedoutdoor-indoornoisereductionmaybedifferentfromtheOINIC.Thisclassificationrequiressoundtransmissionloss(TL),apparentoutdoor-indoortransmissionlost(AOITL(x03B8;)),oroutdoor-indoornoisereductionmeasurements(OILR(x03B8;))inone-thirdoctavebandsfrom80to4000Hz.DuetoaccuracylimitationsgiveninTestMethodE90andGuideE966,measurementsbelowthe100Hzone-thirdoctavebandarenotusuallyreported.Studieshaveshownthatdatainthe80Hzone-thirdoctavebandarenecessarytoobtainacceptablecorrelationsfortransportationsoundsources.Forthepurposesofthisclassification,measurementsofsoundtransmissionlossinthe80Hzone-thirdoctavebandfromqualifiedlaboratoriesaredeemedtobeofacceptableaccuracy.Usersofthisclassificationshouldrecognizethatlowfrequencymeasurementsofsoundtransmissionlossmaybeaffectedbythetestspecimensizeorthespecimenedgerestraints,orboth,particularlyforsmallmodularspecimenssuchasdoorsorwindows.Consequently,theoutdoor-indoortransmissionclass(OITC)mayalsobeaffectedbythesefactors,resultinginsomeuncertaintyofthefieldperformanceofassembliesbearingaratingnumberusingthisclassification,buttowhatextentisunknown.1.1Thepurposeofthisclassificationistoprovideamethodtocalculatesingle-numberratingsthatcanbeusedforassesingtheisolationfortheoutdoorsoundprovidedbyabuildingorcomparingbuildingfacadespecimensincludingwalls,doors,windows,andcombinationsthereof,includingcompletestructures.Theseratingsaredesignedtocorrelatewithsubjectiveimpressionsoftheabilityofbuildingelementstoreducethepenetrationofoutdoorgroundandairtransportationnoise.Theseratingsprovideanevaluationandrankorderingoftheperformanceoftestspecimensbasedontheireffectivenessatcontrollingthesoundofaspecificoutdoorsoundspectrumcalledthereferencesourcespectrum.1.2Inadditiontothecalculationmethod,thisclassificationdefinessomeratingsnotdefinedinotherstandards.Otherstandardsmaydefineadditionalratingsbasedonthemethodofthisclassification.1.3Theratingdoesnotnecessarilyrelatetotheperceivedaesthetic......
【中国标准分类号】:P31
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语


【英文标准名称】:Divingsuits-Part3:Activelyheatedorcooledsuits(systems)-Requirementsandtestmethods;GermanversionEN14225-3:2005
【原文标准名称】:潜水服.第3部分:自动加热或冷却服(系统).要求和试验方法
【标准号】:EN14225-3-2005
【标准状态】:现行
【国别】:
【发布日期】:2005-07
【实施或试行日期】:2005-07-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:效率;产品安全;潜水装具;加热设备;游乐设备;规范(验收);作标记;设备安全;耐力;体育器材;制造日期;机械性能;定义;试验;安全要求;职业安全;用户信息;击穿试验;设计;潜水服;冷却;运动衣;试验台;闲暇活动;防护服装;抗撕裂性;使用说明;撕裂扩展;保健;安全工程;加热的
【英文主题词】:Consumerinformation;Cooling;Dataofthemanufacturer;Definition;Definitions;Design;Divingequipment;Divingsuit;Efficiency;Equipmentsafety;Healthprotection;Heated;Heatingequipment;Instructionsforuse;Leisure;Marking;Mechanicalproperties;Occupationalsafety;Protectiveclothing;Puncturetests;Recreationalequipment;Resistance;Safetyengineering;Safetyofproducts;Safetyrequirements;Specification(approval);Sportsequipment;Sportswear;Tearpropagation;Tearresistance;Testbenches;Testing;Userinformation;Works
【摘要】:
【中国标准分类号】:U27
【国际标准分类号】:97_220_40
【页数】:28P.;A4
【正文语种】:英语