1、Designation:D620913Standard Test Method forDetermination of Gaseous and Particulate PolycyclicAromatic Hydrocarbons in Ambient Air(Collection onSorbent-Backed Filters with Gas Chromatographic/MassSpectrometric Analysis)1This standard is issued under the fixed designation D6209;the number immediately
2、 following the designation indicates the year 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 method2s
3、pecifies sampling,cleanup,andanalysis procedures for the determination of polycyclic aro-matic hydrocarbons(PAH)in ambient air.1.2 This test method is designed to collect both gas-phaseand particulate-phase PAH and to determine them collectively.1.3 This test method is a high-volume sampling(100 to
4、250L/min)method capable of detecting PAH at sub-nanograms percubic metre(ng/m3)concentrations with sampling volumes upto 350 m3of air.1.4 This test method has been validated for samplingperiods up to 24 h.1.5 Precision and bias under normal conditions can beexpected to be 635 to 50%.1.6 This test me
5、thod describes a sampling and analysisprocedure for PAH that involves collection from air on acombination fine-particle filter and sorbent trap and subsequentanalysis by gas chromatography/mass spectrometry(GC/MS).1.7 The range of this test method is approximately 0.05 to1000 ng/m3of air sampled.1.8
6、 The values stated in SI units shall be regarded asstandard.1.9 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 practices and determine the applica-bili
7、ty of regulatory limitations prior to use.See also Section 8for additional safety precautions.2.Referenced Documents2.1 ASTM Standards:3D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD1357 Practice for Planning the Sampling of the AmbientAtmosphereD3631 Test Methods for Measuring S
8、urface AtmosphericPressureE1 Specification for ASTM Liquid-in-Glass ThermometersE2251 Specification for Liquid-in-Glass ASTM Thermom-eters with Low-Hazard Precision Liquids3.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod,refer to Terminology D1356.3.2 Definitions of Terms
9、 Specific to This Standard:3.2.1 sampling effciency(SE),nability of the sampler totrap and retain PAH.The percent SE is the percentage of theanalyte of interest collected and retained by the samplingmedium when it is introduced into the air sampler and thesampler is operated under normal conditions
10、for a period oftime equal to or greater than that required for the intended use.3.2.2 dynamic retention effciency,nability of the sam-pling medium to retain a given PAH that has been added to thesorbent trap in a spiking solution when air is drawn through thesampler under normal conditions for a per
11、iod of time equal toor greater than that required for the intended use.4.Summary of Test Method4.1 Sampling:1This test method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direct responsibility of Subcommittee D22.03 on AmbientAtmospheres and Source Emissions.Current editi
12、on approved April 1,2013.Published April 2013.Originallyapproved in 1997.Last previous edition approved in 2012 as D6209-98(2012).DOI:10.1520/D6209-13.2This test method is based on U.S.Environmental Protection Agency Compen-dum Method TO-13,Compendium of Methods for the Determination of ToxicOrganic
13、 Compounds in Ambient Air,Report No.EPA/600-4-89/018,June 1988,available from the National Technical Information Service,5285 Port Royal Rd.,Springfield,VA 22161,Order No.PB90-11989/AS.3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.o
14、rg.For 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 States1 4.1.1 An air sample is collected directly from the ambientatmosphere by
15、 pulling air at approximately 225 L/min througha fine particulate filter followed by a vapor trap containingpolyurethane foam(PUF)or styrene/divinylbenzene polymerresin(XAD-2).4Sampling times may be varied from 1 to 24 h,depending on monitoring needs and the detection limitsrequired,so as not to exc
16、eed a total sample volume of 350 m3.4.2 Analysis:4.2.1 After sampling a fixed volume of air,the particle filterand sorbent cartridge are extracted together in a Soxhletextractor.The sample extract is concentrated by means of aKuderna-Danish concentrator(or other validated method),followed by a further concentration under a nitrogen stream,ifnecessary,and an aliquot is analyzed by gas chromatography/mass spectrometry.The results derived represent the combinedgas-phase and particulate-phase air co