1、Designation:D683111(Reapproved 2018)Standard Test Method forSampling and Determining Particulate Matter in Stack GasesUsing an In-Stack,Inertial Microbalance1This standard is issued under the fixed designation D6831;the number immediately following the designation indicates the year oforiginal adopt
2、ion 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 the procedures for determin-ing the mass concentratio
3、n of particulate matter in gaseousstreams using an automated,in-stack test method.This testmethod,an in-situ,inertial microbalance,is based on inertialmass measurement using a hollow tube oscillator.This testmethod is describes the design of the apparatus,operatingprocedure,and the quality control p
4、rocedures required toobtain the levels of precision and accuracy stated.1.2 This test method is suitable for collecting and measuringfilterable particulate matter concentrations in the ranges 0.2mg/m3and above taken in effluent ducts and stacks.1.3 This test method may be used for calibration of aut
5、o-mated monitoring systems(AMS).If the emission gas containsunstable,reactive,or semi-volatile substances,the measure-ment will depend on the filtration temperature,and this testmethod(and other in-stack methods)may be more applicablethan out-stack methods for the calibration of automated moni-torin
6、g systems.1.4 This test method can be employed in sources having gastemperature up to 200C(392F)and having gas velocitiesfrom 3 to 27 m/s.1.5 This test method includes a description of equipmentand methods to be used for obtaining and analyzing samplesand a description of the procedure used for calc
7、ulating theresults.1.6 This test method may also be limited from use insampling gas streams that contain fluoride,or other reactivespecies having the potential to react with or within the sampletrain.1.7 Appendix X1 provides procedures for assessment of thespatial variation in particulate matter(PM)
8、concentrationwithin the cross section of a stack or duct test location todetermine whether a particular sampling point or limitednumber of sampling points can be used to acquire representa-tive PM samples.1.8 Appendix X2 provides procedures for reducing thesampling time required to perform calibrati
9、ons of automatedmonitoring systems where representative PM samples can beacquired from a single sample point and certain other condi-tions are met.1.9 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are
10、provided for informa-tion only and are not considered standard.1.10 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-mi
11、ne the applicability of regulatory limitations prior to use.1.11 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
12、 issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD3154 Test Method for Average Velocity in a Duct(PitotTube Method)D3685/D3685M Test Methods for Sampling and Det
13、ermina-tion of Particulate Matter in Stack GasesD3796 Practice for Calibration of Type S Pitot TubesD6331 Test Method for Determination of Mass Concentra-tion of Particulate Matter from Stationary Sources at LowConcentrations(Manual Gravimetric Method)1This test method is under the jurisdiction of A
14、STM Committee D22 on AirQuality and is the direct responsibility of Subcommittee D22.03 on AmbientAtmospheres and Source Emissions.Current edition approved April 15,2018.Published May 2018.Originallyapproved in 2002.Last previous edition approved in 2011 as D6831 11.DOI:10.1520/D6831-11R18.2For refe
15、renced 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshoh
16、ocken,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 Technical Barriers to Trade(TBT)Committee.1 2.2 EPA Methods from 40 CFR Part 60,Appendix A:Method 3A Determination of Oxygen and Carbon DioxideConcentrations in Emissions from Stationary Sources(