1、Designation:D673501(Reapproved 2009)Standard Test Method forMeasurement of Gaseous Chlorides and Fluorides fromMineral Calcining Exhaust SourcesImpinger Method1This standard is issued under the fixed designation D6735;the number immediately following the designation indicates the year oforiginal ado
2、ption 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.INTRODUCTIONThe bias and precision statements included in Section 14 of this test method
3、are based on field testmeasurements at limestone calcining sources.Procedures for assessing the test-specific bias and theprecision at each source are included in the body of the method.Additional optional procedures are included in Appendix X1 that can be used to demonstrate thebias and precision o
4、f the method for specific source categories.These procedures were used to developthe bias and precision statements included in Section 14 and may be applied when using the methodat sources where no previous test data have been acquired.1.Scope1.1 This method will measure the concentration of gaseous
5、hydrochloric and hydrofluoric acids,and other gaseous chlo-rides and fluorides that pass through a particulate matter filtermaintained at 177C(350F).This method is specific forsampling combustion effluent from mineral calcining industriesand other stationary sources where the reactive/adsorptivenatu
6、re of the particulate matter may affect measurements.1.2 This method utilizes ion chromatography to quantify theaqueous samples,and thus measures only the C1-and F-ions.1.3 Based on a one-hour sampling run,the method willprovide results of known accuracy and precision for chlorideand fluoride in-sta
7、ck concentrations of 0.5 ppm(v)dry orgreater.Extending the run duration and sampling a greatervolume of effluent will extend the range to lower concentra-tions.1.4 This method includes optional post-test quality assur-ance procedures to assess the bias of the test results,andoptional paired sample t
8、rain runs to assess the precision of testresults.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresD2986 Practice for Evaluation of Air Assay Media by theMonodisperse DOP(Dioctyl Phthalate)Smoke Test(Withdrawn 2004)3D3195 Practice for Rotamete
9、r CalibrationD6348 Test Method for Determination of Gaseous Com-pounds by Extractive Direct Interface Fourier TransformInfrared(FTIR)Spectroscopy2.2 EPA Standards:4Method 1Sample and Velocity Traverses for StationarySourcesMethod 2Determination of Stack Gas Velocity and Volu-metric Flow Rate(Type S
10、Pitot Tube)Method 3Gas Analysis for Carbon Dioxide,Oxygen,Excess Air,and Dry Molecular WeightMethod 4Determination of Moisture Content in StackGases1This test method is under the jurisdiction of ASTM Committee D22 on AirQuality and is the direct responsibility of Subcommittee D22.03 on AmbientAtmosp
11、heres and Source Emissions.Current edition approved Oct.1,2009.Published December 2009.Originallyapproved in 2001.Last previous edition approved in 2001 as D6735-01.DOI:10.1520/D6735-01R09.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceas
12、tm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4United States Environmental Protection Agency Code of Federal Regulations,40 CFR Parts 60 an
13、d 63,available from the Government Printing Office,Washington,DC.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Method 301Field Validation of Pollutant MeasurementMethods from Various Waste Media3.Terminology3.1 See Terminology D1356 for
14、 definition of terms used inthis test method.3.2 Definitions of Terms Specific to This Standard:3.2.1 analyte spike,nthe optional procedure contained inthis method to assess bias attributed to the measurementsystem.The analyte spike procedure consists of adding aknown amount of the certified compres
15、sed gas into theimpinger train upstream of the particulate filter after the end ofa run.3.2.2 blank train,nan impinger train that is assembled andrecovered but does not collect effluent gas.The blank trainprovides an estimate of the amount of contamination that canoccur during a field test.3.2.3 cer
16、tified compressed gas,nan HCl or HF gas stan-dard that is certified by the manufacturer to a known degree ofaccuracy.For HCl and HF compressed gas standards theaccuracy is often certified to 510%of the certified value.3.2.4 conditioning run,na sampling run conducted beforethe first run of the test series.The impinger contents from theconditioning run are not analyzed nor included in the testresults.3.2.5 cylinder gas analysis,na procedure to verify theconcentration of the certified compressed ga