DIN 45635 T.20-1990 机器噪声的测量.空气传声测量.包面法.风动工具和风动机械

上一篇: DIN 55515 T.2-1990 医疗及生物检验品的发货包装.容器.尺寸
下一篇: DIN 45635 T.1001-1990 机器噪声测量.空气载声测量.包面和特殊混响室法.家用及类似用途电气设备.吸尘器特殊要求

【英文标准名称】:StandardPracticeforInstallingRadonMitigationSystemsinExistingLow-RiseResidentialBuildings
【原文标准名称】:在已有的低层住宅建筑中安装氡减轻系统的实施规程
【标准号】:ASTME2121-2009
【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】:E06.41
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:depressurization;radon;radonentry;radonmitigation;radonreduction;Installation--buildingmaterials/applications;Low-riseresidentialbuildings;Radon;Residentialdwellings
【摘要】:Thepurposeofthemethods,systems,anddesignsdescribedinthispracticeistoreduceradiationexposuresforoccupantsofresidentialbuildingscausedbyradonanditsprogeny.Thegoalofmitigationistomaintainreducedradonconcentrationsinoccupiableareasofbuildingsatlevelsaslowasreasonablyachievable.Thispracticeincludessectionsonreducingradiationexposurecausedbyradonanditsprogenyforworkerswhoinstallandrepairradonmitigationsystems.Thegoalforworkersistoreduceexposurestoradonanditsprogenytolevelsaslowasreasonablyachievable.Themethods,systems,designs,andmaterialsdescribedherehavebeenshowntohaveahighprobabilityofsuccessinmitigatingradoninattachedanddetachedresidentialbuildings,threestoriesorlessinheight(seeEPA,x201C;RadonReductionTechniquesforExistingDetachedHouses,TechnicalGuidance(ThirdEdition)forActiveSoilDepressurizationSystemsx201D;).Applicationofthesemethodsdoesnot,however,guaranteereductionofradonlevelsbelowanyspecificlevel,sinceperformancewillvarywithsiteconditions,constructioncharacteristics,weather,andbuildingoperation.Whenapplyingthispractice,contractorsalsoshallconformtoallapplicablelocal,state,andfederalregulations,andlawspertainingtoresidentialbuildingconstruction,remodeling,andimprovement.1.1Thispracticedescribesmethodsforreducingradonentryintoexistingattachedanddetachedresidentialbuildingsthreestoriesorlessinheight.Thispracticeisintendedforusebytrained,certifiedorlicensed,orboth,orotherwisequalifiedindividuals.1.2Thesemethodsarebasedonradonmitigationtechniquesthathavebeeneffectiveinreducingradonlevelsinawiderangeofresidentialbuildingsandsoilconditions.ThesefanpoweredmitigationmethodsarelistedinAppendixX1.Moredetailedinformationiscontainedinreferencescitedthroughoutthispractice.1.3Thispracticeisintendedtoprovideradonmitigationcontractorswithauniformsetofpracticesthatwillensureahighdegreeofsafetyandthelikelihoodofsuccessinretrofittinglowriseresidentialbuildingswithradonmitigationsystems.1.4Themethodsdescribedinthispracticeapplytocurrentlyoccupiedorformerlyoccupiedresidentialbuildings,includingbuildingsconvertedorbeingconvertedtoresidentialuse,aswellasresidentialbuildingschangedorbeingchangedbyaddition(s)oralteration(s),orboth.Theradonreductionactivitiesperformedonnewdwellings,whileunderconstruction,beforeoccupancy,andforuptooneyearafteroccupancy,arecoveredbyGuideE1465.1.5Thispracticealsoisintendedasamodelsetofpractices,whichcanbeadoptedormodifiedbystateandlocaljurisdictions,tofulfillobjectivesoftheirspecificradoncontractorcertificationorlicensureprograms.Radonmitigationperformedinaccordancewiththispracticeisconsideredordinaryrepair.1.6Themethodsaddressedinthispracticeincludethefollowingcategoriesofcontractoractivity:generalpractices,buildinginvestigation,systemsdesign,systemsinstallation,materials,monitorsandlabeling,post-mitigationtesting,anddocumentation.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection6forspecificsafetyhazards.
【中国标准分类号】:P09
【国际标准分类号】:91_120_99
【页数】:13P.;A4
【正文语种】:英语

标准名称：	城市污水 六价铬的测定 乙苯碳酰二肼分光光度法
中标分类：	环境保护 >> 环境保护采样、分析测试方法 >> 工业废水、污染物分析方法
替代情况：	转化为CJ/T 71-1999
发布日期：
实施日期：	1992-02-01
首发日期：
作废日期：	1999-06-04
出版日期：
页数：	3页

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