1、Designation:D583915Standard Test Method forTrace Element Analysis of Hazardous Waste Fuel byEnergy-Dispersive X-Ray Fluorescence Spectrometry1This standard is issued under the fixed designation D5839;the number immediately following the designation indicates the year oforiginal adoption or,in the ca
2、se 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 applies to the determination of traceelement concentrations by energy-dispersiv
3、e X-ray fluores-cence(EDXRF)spectrometry in typical liquid hazardous wastefuels(LHWF)used by industrial furnaces.1.2 This test method has been used successfully on numer-ous samples of LHWF that are mixtures of solvents,oils,paints,and pigments for the determination of the followingelements:Ag,As,Ba
4、,Cd,Cr,Hg,Ni,Pb,Sb,Se,and Tl.1.3 This test method also may be applicable to elements notlisted above and to the analysis of trace metals in organicliquids other than those used as LHWF.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theres
5、ponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2C982 Guide for Selecting Components for Energy-Dispersive X-Ray Fluorescence(XRF)Systems(Wi
6、th-drawn 2008)33.Summary of Test Method3.1 A weighed portion of the sample is transferred to aporcelain evaporating dish and placed on a hot plate.Thesample is heated for 15 to 30 min at a temperature notexceeding 105C to evaporate highly volatile components.Thedish is removed from the hot plate and
7、 allowed to cool.Graphite powder is blended with the evaporated sample until ahomogeneous paste is produced and the sample weight isrecorded.The blended sample is inserted in a disposablesample cup and placed in the X-ray spectrometer for analysis.3.2 The K Spectral X-ray emission lines are used for
8、Ag,As,Ba,Cd,Cr,Ni,Sb,and Se.3.3 The L spectral X-ray emission lines are used for Hg,Pb,and Tl.4.Significance and Use4.1 The analysis of trace elements is often a regulatory andprocess specific requirement for facilities utilizing LHWF.With proper instrument standardization,set-up,and qualitycontrol,
9、this test method provides the user an accurate,rapid,nondestructive method for trace element determinations.5.Interferences5.1 Spectral Overlaps:5.1.1 Samples containing a mixture of elements often ex-hibit X-ray emission line overlap.Modern Si(Li)detectorsgenerally provide adequate resolution to mi
10、nimize the effectsof spectrum overlaps on the analytical results of the LHWF.Inthose cases where direct emission line overlap exists,spectraldeconvolution methods extract corrected analyte emission lineintensities.Table 1 lists the significant line overlaps observedfor the elements analyzed in LHWF.
11、Follow the EDXRFmanufacturers recommendations concerning spectral decon-volution of the emission lines.NOTE1Not all possible interferences are listed in Table 1.The LHWFsamples to be analyzed may have other emission line interferences notmentioned.Consult the manufacturers recommendations for optimu
12、mdeconvolution methods.5.2 Matrix Interferences:5.2.1 Large concentration variations of metal or matrixcomponents,or both,in LHWF samples can result in non-linear metal X-ray intensity response at increasing metalconcentrations.Untreated matrix interactions may have adeleterious effect on metal dete
13、rmination accuracy.Matrixinteractions,if exhibited by the LHWF samples,must beaccounted for by method calibration.1This guide is under the jurisdiction of ASTM Committee D34 on WasteManagement and is the direct responsibility of Subcommittee D34.01.06 onAnalytical Methods.Current edition approved Ma
14、y 1,2015.Published May 2015.Originallyapproved in 1996.Last previous edition approved in 2006 as D5839-96(2006),which was withdrawn in January 2015 and reinstated in May 2015.DOI:10.1520/D5839-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at se
15、rviceastm.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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19
16、428-2959.United States1 6.Apparatus6.1 Energy Dispersive X-Ray Spectrometer,capable of mea-suring the wavelengths listed in Table 1.Refer to Guide C982for system specifications.6.2 Hot Plate,with temperature control to 105C.6.3 Analytical Balance,capable of weighing to 0.001 g.6.4 Porcelain Evaporating Dishes,70 to 150 mL capacity.7.Reagents and Materials7.1 Purity of ReagentsUse reagent grade chemicals in alltests.Unless otherwise indicated,all reagents will conform tothe specifications of the
