1、Designation:E212113Standard Practice forInstalling Radon Mitigation Systems in Existing Low-RiseResidential Buildings1This standard is issued under the fixed designation E2121;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year
2、of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice describes methods for reducing radonentry into existing attached and detached residential buildingsthree s
3、tories or less in height.This practice is intended for useby trained,certified or licensed,or both,or otherwise qualifiedindividuals.1.2 These methods are based on radon mitigation techniquesthat have been effective in reducing radon levels in a widerange of residential buildings and soil conditions
4、.These fanpowered mitigation methods are listed in Appendix X1.Moredetailed information is contained in references cited throughoutthis practice.1.3 This practice is intended to provide radon mitigationcontractors with a uniform set of practices that will ensure ahigh degree of safety and the likeli
5、hood of success in retrofit-ting low rise residential buildings with radon mitigationsystems.1.4 The methods described in this practice apply to cur-rently occupied or formerly occupied residential buildings,including buildings converted or being converted to residentialuse,as well as residential bu
6、ildings changed or being changedby addition(s)or alteration(s),or both.The radon reductionactivitiesperformedonnewdwellings,whileunderconstruction,before occupancy,and for up to one year afteroccupancy,are covered by Guide E1465.1.5 This practice also is intended as a model set of practices,which ca
7、n be adopted or modified by state and localjurisdictions,to fulfill objectives of their specific radon con-tractor certification or licensure programs.Radon mitigationperformed in accordance with this practice is consideredordinary repair.1.6 The methods addressed in this practice include thefollowi
8、ng categories of contractor activity:general practices,building investigation,systems design,systems installation,materials,monitors and labeling,post-mitigation testing,anddocumentation.1.7 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathe
9、maticalconversions to SI units that are provided for information onlyand are not considered standard.1.8 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health
10、 practices and determine the applica-bility of regulatory limitations prior to use.See Section 6 forspecific safety hazards.2.Referenced Documents2.1 ASTM Standards:2E631 Terminology of Building ConstructionsE1465 Practice for Radon Control Options for the Designand Construction of New Low-Rise Resi
11、dential BuildingsE1745 Specification for Plastic Water Vapor Retarders Usedin Contact with Soil or Granular Fill under Concrete Slabs2.2 Government Publications:EPA“Asbestos School Hazard Abatement ReauthorizationAct,”regulation 40 CFR Part 763,Subpart E.3EPA“A Citizens Guide to Radon(Second Edition
12、),”EPA402-K92-001,May 1992.3EPA“Consumers Guide to Radon Reduction,”EPA 402-K92-003,August 1992.3EPA“Handbook,Sub-Slab Depressurization for Low-Permeability Fill Material,”EPA/625/6-91/029,July1991.3EPA“Home Buyers and Sellers Guide,”EPA 402K-00008,July 2000.3EPA“National Emission Standard forAsbest
13、os,”40 CFR 61,Subpart M.31This practice is under the jurisdiction of ASTM Committee E06 on Perfor-mance of Buildings and is the direct responsibility of Subcommittee E06.41 on AirLeakage and Ventilation Performance.Current edition approved March 1,2013.Published March 2013.Originallyapproved in 2001
14、.Last previous edition approved in 2012 as E2121 12.DOI:10.1520/E2121-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM w
15、ebsite.3Available from United States Environmental Protection Agency(EPA),ArielRios Bldg.,1200 Pennsylvania Ave.,NW,Washington,DC 20460,http:/www.epa.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 EPA“Radon Mitigation Standards,”EPA
16、402-R-93-078,April 1994.3EPA“Radon Reduction Techniques for Existing DetachedHouses,Technical Guidance(Second Edition),”EPA/625/587/019,revised January 1988.3EPA“Radon Reduction Techniques for Existing DetachedHouses,Technical Guidance(Third Edition)for ActiveSoil Depressurization Systems,”EPA/625/R-93-011,Oc-tober 1993.3NCRP“Measurement of Radon and Radon Daughters inAir,”NCRP Report No.97,1988.4NIOSH“Guide to Industrial Respiratory Protection,”NIOSH Publication No.87116.5OSHA“Asbestos Standard