ASTM E336-2007 建筑物房间之间气载噪声衰减率的标准试验方法

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【英文标准名称】:StandardTestMethodforMeasurementofAirborneSoundAttenuationbetweenRoomsinBuildings
【原文标准名称】:建筑物房间之间气载噪声衰减率的标准试验方法
【标准号】:ASTME336-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:E33.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:声学;建筑声学;建筑物;建筑;绝缘;测量;噪声控制(声学的);声音;测试
【英文主题词】:airbornesoundtransmissionloss;apparentsoundtransmissionclass;apparenttransmissionloss;fieldsoundtransmissionclass;fieldtransmissionloss;flankingtransmission;noiseisolationclass;noisereduction;normalizednoiseisolationclass;soundtransmissioncoefficient;soundtransmissionloss;transmissionloss;
【摘要】:1.1Thesoundisolationbetweentwospacesinabuildingisdeterminedbyacombinationofthedirecttransmissionthroughthenominallyseparatingbuildingelement(asnormallymeasuredinalaboratory)andanytransmissionalonganumberofindirectpaths,usuallyreferredtoasflankingpaths.illustratesthedirectpathsandsomepossiblestructuralflankingpaths.Additionalnon-structuralflankingpathsmayincludetransmissionthroughcommonairductsbetweenrooms,ordoorstothecorridorfromadjacentrooms.1.2Themainpartofthistestmethoddefinesproceduresandmetricstoassessthesoundisolationbetweentworoomsinabuildingseparatedbyacommonpartitionincludingbothdirectandflankingtransmissionpaths.Appropriatemeasuresandtheirsinglenumberratingsarethenoisereduction(NR)andnoiseisolationclass(NIC),thenormalizednoisereduction(NNR)andnormalizednoiseisolationclass(NNIC),andtheapparenttransmissionloss(ATL)andapparentsoundtransmissionclass(ASTC).WiththeexceptionoftheATLandASTCunderspecifiedconditions,theseproceduresareonlyapplicablewhenbothroomvolumesarelessthan150m3.Note1Theword"partition"inthistestmethodincludesalltypesofwalls,floors,oranyotherboundariesseparatingtwospaces.Theboundariesmaybepermanent,operable,ormovable.1.3providesmethodstoassessthesoundtransmissionthroughapartitionorpartitionelementwiththeinfluenceofflankingtransmissionreduced.Thesemethodsmaybeusedwhenitmustbedemonstratedthatapartitionhasachievedaspecifiedminimumsoundattenuation.Theresultsarethefieldtransmissionloss(FTL)andfieldsoundtransmissionclass(FSTC).1.4providesmethodstomeasurethesoundisolationbetweenportionsoftworoomsinabuildingseparatedbyacommonpartitionincludingbothdirectandflankingpathswhenatleastoneoftheroomshasavolumeof150m3ormore.Theresultsarethenoisereduction(NR)andnoiseisolationclass(NIC).Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:P31
【国际标准分类号】:91_120_20
【页数】:12P.;A4
【正文语种】:


基本信息
标准名称:食品中总砷及无机砷的测定
英文名称:Determination of total arsenic and abio-arsenic in food
中标分类: 医药、卫生、劳动保护 >> 卫生 >> 食品卫生
ICS分类: 食品技术 >> 食品综合
替代情况:GB/T 5009.11-1996
发布部门:中华人民共和国卫生部 中国国家标准化管理委员会
发布日期:2003-08-11
实施日期:2004-01-01
首发日期:1985-05-16
作废日期:1900-01-01
主管部门:卫生部
提出单位:中华人民共和国卫生部
归口单位:中华人民共和国卫生部
起草单位:卫生部食品卫生监督检验所
起草人:强卫国、杨惠芬、毛红、阎军
出版社:中国标准出版社
出版日期:2004-01-01
页数:14页
适用范围

本标准规定了各类食品中总种的测定方法。本标准适用于各类食品中总砷的测定。本方法检出限:氢化物原子荧光光度法:0.0lmg/kg,线性范围为0ng/mL~200ng/mL;银盐法:0.2mg/kg;砷斑法:0.25mg/kg;硼氢化物还原比色法:0.05mg/kg。

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所属分类: 医药 卫生 劳动保护 卫生 食品卫生 食品技术 食品综合
Product Code:SAE AS1895
Title:Coupling Assembly, V-Retainer, High Pressure, High Temperature, Pneumatic Tube
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:This SAE Aerospace Standard establishes the requirements for a grooved clamp coupling, flanges, and seal suitable for joining high pressure and high temperature ducting in aircraft bleed air systems. The rigid coupling joint assembly, hereafter referred to as 'the joint', shall operate within the temperature range of -65 to +1200 degrees F.