1、Designation:D606096(Reapproved 2009)Standard Practice forSampling of Process Vents with a Portable GasChromatograph1This standard is issued under the fixed designation D6060;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、 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 a method for direct sampling andanalysis of process vents for volatile organic compound(VOC)vapors
3、 and permanent gases using a portable gas chromato-graph(GC).1.2 This practice is applicable to analysis of permanentgases such as oxygen(O2),carbon dioxide(CO2)and nitrogen(N2),as well as vapors from organic compounds with boilingpoints up to 125C.1.3 The detection limits obtained will depend on th
4、e por-table gas chromatograph and detector used.Detectors availableincludethermalconductivity,photoionization,argonionization,and electron capture.For instruments equipped withthermal conductivity detectors,typical detection limits are oneto two parts per million by volume(ppm(v)with an applicableco
5、ncentration range to high percent by volume levels.Forinstruments with photoionization detectors detection limit ofone to ten parts per billion by volume(ppb(v)are obtainablewith a concentration range from 1000 to 2000 ppm(v).Theargon ionization detector has an achievable detection limit ofone(ppb(v
6、),while the electron capture detector has anachievable detection limit of one part per trillion by volume(ppt(v)for chlorinated compounds.1.4 The applicability of this practice should be evaluated foreach VOC by determining stability,reproducibility,and linear-ity.1.5 The appropriate concentration r
7、ange must also be deter-mined for each VOC,as the range will depend on the vaporpressure of the particular VOC.1.6 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
8、and health practices and determine the applica-bility of regulatory limitations prior to use.Refer to Section 8on Hazards for additional safety precautions.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD3154 Test Method for Average Velocit
9、y in a Duct(PitotTube Method)D3464 Test Method for Average Velocity in a Duct Using aThermal AnemometerE355 Practice for Gas Chromatography Terms and Relation-ships2.2 Other Document:NFPA 496 Standard for Purged and Pressurized Enclosuresfor Electrical Equipment33.Terminology3.1 DefinitionsFor the d
10、efinition of terms used in thispractice,refer to Terminology D1356 and Practice E355.3.2 Definitions of Terms Specific to This Standard:3.2.1 portablerefers to gas chromatograph with internalbattery,internal sample pump,and internal/rechargeable carriergas supply cylinder.4.Summary of Practice4.1 On
11、e end of a sampling line(typically 6 mm(14in.)outside diameter TFE-fluorocarbon tubing)is connected to atee in a process vent and the other end to a condensation trap(see 6.1),which is connected to a gas sampling bulb.The outletof the gas sampling bulb is connected to a sampling pump setat a flow ra
12、te of 0.5 to 2 L/min.The sample line from theportable gas chromatograph is inserted through the septum portof the gas sampling bulb.At user selected intervals,the internalpump of the portable gas chromatograph is activated andprocess vapors drawn through the injection valve of the gaschromatograph a
13、nd analyzed.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 edition approved Oct.1,2009.Published December 2009.Originallyapproved in 1996.Last previous edition
14、approved in 2001 as D6060-96(2001).DOI:10.1520/D6060-96R09.2For 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 website.3Availa
15、ble from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,MA 02169-7471,http:/www.nfpa.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Significance and Use5.1 This practice has been widely used to obtain massbala
16、nce data for process scrubbers,to determine the efficiencyof VOC emission control equipment,and to obtain data tosupport air permit applications.5.2 This practice will have applications to the MACT Ruleand may have applications to Compliance Assurance Monitor-ing verification required by the 1990 Clean Air Act Title IIIAmendments.5.3 This practice,when used with Test Methods D3464 orD3154 or on-line process flow meter data,can be used tocalculate detailed emission rate profiles for VOCs from pro
