1、Designation:D733918Standard Test Method forDetermination of Volatile Organic Compounds Emitted fromCarpet using a Specific Sorbent Tube and ThermalDesorption/Gas Chromatography1This standard is issued under the fixed designation D7339;the number immediately following the designation indicates the ye
2、ar oforiginal adoption or,in the case of revision,the year 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 test method describes an analytical procedure foridentif
3、ying and quantifying the masses of individual volatileorganic compounds(individual VOCs or IVOCs)that areemitted into a flow of air from carpet specimens and collectedon sorbent sampling tubes during emissions testing.1.2 This test method will be used in conjunction with astandard practice for sampl
4、ing and preparing carpet specimensfor emissions testing.If a specific chamber practice is notavailable for the carpet specimens,this test method should beused in conjunction with approved standard practices foremissions testing and sample preparation.1.3 When used in conjunction with standard practi
5、ces forcarpet specimen preparation and collection of vapor-phaseemissions,this test method will provide a standardized meansof determining the levels of IVOC in the exhaust stream of theemissions test chamber/cell.If this test method is used with areliable practice for emissions testing,these IVOC l
6、evels canbe used to determine the emission rate from a unit quantity(usually surface area)of the sample material under test.1.4 VOCs in the exhaust stream of an emissions test deviceare collected on thermal desorption tubes packed with aspecific combination of sorbents using active(pumped)sam-pling.
7、(See Practice D6196 for a more general description ofvapor collection using pumped sampling onto sorbent tubes.)The samples are analyzed by thermal desorption(TD)with gaschromatography and mass spectrometry detection(GC/MS)and/or flame ionization detection(FID)depending upon therequirements of the s
8、pecific materials emissions testing/certification protocol.1.5 This test method can be used for the measurement ofmost GC-compatible organic vapors ranging from the approxi-mate volatility from n-hexane to n-hexadecane(that is,com-pounds with vapor pressures ranging from 16 kPa to 4 10-4kPa at 25C).
9、Properties other than a compounds vaporpressure such as affinity for the sorbent may need to be takeninto account.Compounds with vapor pressures outside thisrange may or may not be quantifiable by this test method.However,qualitative data concerning the identity of acompound(s),outsidethestatedvolat
10、ilityrangeforquantitation,may still be useful to the user.This test methodcan be applied to analytes over a wide concentration rangetypically 1 g/m3to 1 mg/m3concentration of vapor in theexhaust air from the emission cell or chamber.1.6 This test method is not capable of quantifying allcompounds whi
11、ch are emitted from carpets.See the appropri-ate test practices/methods for determining other compoundsthat are not amenable to analysis by gas chromatography(thatis,Test Method D5197 for the determination of aldehydes).1.7 UnitsThe values stated in SI units are to be regardedas standard.No other un
12、its of measurement are included in thisstandard.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,health,and environmental practices and deter-mine the applicabi
13、lity of regulatory limitations prior to use.1.9 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the Wo
14、rld Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheres1This test method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direct responsibility of Subcommittee
15、D22.05 on Indoor Air.Current edition approved March 1,2018.Published March 2018.Originallyapproved in 2007.Last previous edition approved in 2012 as D7339 12.DOI:10.1520/D7339-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For
16、 Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technic