【英文标准名称】:GuidefortheUseofClassAFoamsinManualStructuralFireFighting
【原文标准名称】:手工救火中A级泡沫的使用指南
【标准号】:ANSI/NFPA1145-2011
【标准状态】:现行
【国别】:美国
【发布日期】:2011
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:灭火剂;泡沫灭火系统;防火;消防设备;防火安全性;防火技术;消防;泡沫材料;特性
【英文主题词】:Extinguishingagents;Fireextinguishingfoamsystems;Fireprotection;Fireprotectionequipment;Firesafety;Firetechnology;Firefighting;Foams;Properties
【摘要】:.1.1.1ThisdocumentpresentsfundamentalinformationforagenciesplanningtouseClassAfoamforstructuralfirefightingandprotection.Itpresentsnecessaryandusefulinformationonfoampropertiesandcharacteristics,proportioninganddischargehardware,applicationtechniques,andsafetyconsiderations.1.1.2ThisdocumentdescribestheuseandapplicationofClassAfoamsthatmeettherequirementsofNFPA1150,StandardonFoamChemicalsforFiresinClassA.Fuels.1.1.3ThisdocumentdoesnotapplytotheuseofClassAFoaminsprinklersystemsoronfiresinvolvingClassBflammableorcombustibleliquids.1.1.4ThisdocumentisnotwrittenforapplicationsofClassAfoaminthewildlandfireenvironment.However,muchofthematerialinthisguidecanbehelpfultohosewhouseClassAfoaminwildlandfireapplications,SeeAnnexBforpublicationsthataddressuseofClassAfoaminwildlandapplications.1.1.5Thisdocumentisnotintendedtodiscouragetheuseoffuturetechnologiesandpracticesprovidedthattherecommendedlevelofsafetyisnotlessened.
【中国标准分类号】:C83
【国际标准分类号】:13_220_10
【页数】:
【正文语种】:英语


【英文标准名称】:StandardGuideforSpecifyingAcousticalPerformanceofSound-IsolatingEnclosures
【原文标准名称】:规定隔音室声学性能的标准指南
【标准号】:ASTME1704-1995(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:buildings;enclosures;insertionloss;levelreduction;noisereduction;rooms;specifications;Acousticaltests;Enclosures;Insertionloss;Levelreduction;Noisereduction;Performance--acousticalsystems;Rooms;Sound-isolatingenclosures;Soun
【摘要】:Thisguidecanbeusedtoproduceaspecificationfortheacousticalperformanceofanenclosure.Thisguideisintendedforthosefamiliarwithbasicconceptsofacoustics.Althoughthisguideprovidesdetailedguidanceinmattersrelatingtospecificationofacousticalenclosures,itisnotasubstitutefortheexperienceandjudgmentofanacousticalornoisecontrolprofessional.Thisguidecallsformeasurementscommonwithinacousticalpractice.Themorecriticaltheperformancerequirementsoftheenclosure,themoretheusershouldconsiderseekingtheservicesofanacousticsornoisecontrolprofessional.Thespecifyingofasound-isolatingenclosurehasthreesequentialsteps:Determinethesoundpressurelevelsthatexistatspecificlocationspriortotheintroductionoftheenclosure,Note18212;Inthecaseofnewconstruction,thesoundpressurelevelisoftenestimatedfromthesoundpowerlevelsofnoise-emittingequipmentandageneraldescriptionoftheacousticalpropertiesoftheenvironment.Determinethemaximumpermissiblesoundpressurelevelsthatmustexistatthesamelocationsaftertheintroductionoftheenclosure,andDeterminetherequiredenclosurelevelreduction.Therequiredisolationisrelatedtothedifferencebetweenthesoundpressurelevelsbeforeandaftertheintroductionoftheenclosure.Manyspecificationsareformultipleenclosuresorenclosureswithmultiplefunctions,orboth.Itisbeyondthescopeofthisguidetoprovidedetailedguidanceforeverypossiblecombination.Separatespecificationsforeachsource-enclosure-receivercombinationshouldbeusedinsuchacase.Thetypeofspecificationthatshouldbeselecteddependsbothonthepurposeoftheenclosureandhowcrucialitsperformanceis.Ingeneral:Ifexceedingaparticularmaximumpermissiblesoundpressurelevelspectrumwouldrendertheenclosureunsuccessful,asoundpressurelevelspecificationshouldbeused.Thisguideassignsallphasesofacousticaldesignaredelegatedtothesupplier.Complianceisusuallymoreeasilyverifiedthanwiththelevelreductionmethod.Ifthecriteriaforthesuccessoftheenclosurearelessstringentornotrelatedtoaspecificmaximumpermissiblespectrum,alevelreductionspecificationmaybeused.1.1Theguidecoversthedevelopmentofcriteriafortheacousticalperformanceofabroadvarietyofacousticalenclosuresbyidentifyinginformationnecessarytounambiguouslydescribeacousticalperformance.ThisguideisnotastandardASTMspecificationforasound-isolatingenclosure.1.2Excludedfromthescopeofthisguidearetechnicalconsiderationsforenclosuredesignthatdonotpertaindirectlytoacousticalperformance.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P31
【国际标准分类号】:17_140_01
【页数】:7P.;A4
【正文语种】:英语