ASTMD2622-2003

Designation:D 2622-03An American Nafional StandardNTERNATIONALStandard Test Method forSulfur in Petroleum Products by Wavelength DispersiveX-ray Fluorescence Spectrometry1This standard is issued under the fixed designation D2622;the number immediately 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 (e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*TABLE 1 Comparison of NIST and ASTM Interlaboratory Study(RR)Results1.1 This test method covers the detemmination of total sulfurSulfurin petroleum and petroleum products that are single-phase andNIST SRM Sulfur,CA mass Apparent Relative Signii cantmass %mass %ratioBias,Bias,either liquid at ambient cond itions,liquefi able with moderateNISTASTMRRSulfurheat,or soluble in hydrocarbon solvents.These materials canAverageinclude diesel fuel,jet fuel,kerosine,other distillate oil,1616a0.01460.014852050.00021.37Nonaphtha,residual oil,lubricating base oil,hydraulic oil,crude1617a0.17310.177652050.00452.60Yes272430.04300.04175.986-0.0013-3.02oil,unleaded gasoline,M-85 and M-100.Yes1623c0.38060.36817.504-0.01453.81Yes1.2 Interlaboratory studies on precision covered a variety of2717302202.9488229-0.0736-244Yesmaterials with sulfur concentrations ranging from approxi-1621e0.94B0.89738.553-0.0507-5.35Yes1624c0.39186.511mately 3 mg/kg to 5.3 mass %For a subset of these samples,27230.02995.937with sulfur concentrations below 60 mg/kg,the repeatabilitystandard deviation(S,)was 1.5 mg/kg.An estimate of the limitof detection is 3 x S and an estimate of the limit ofpriate safety and health practices and determine the applica-quantitation2 is 10 X S,.However,because instrumentationcovered by this test method can vary in sensitivity,thebility of regulatory limitations prior to use.applicability of the test method at sulfur concentrations below2.Referenced Documentsapproximately 20 mg/kg must be determined on an individual2.1 ASTM Standards:basis.D 4057 Practice for Manual Sampling of Petroleum and1.3 Samples containing more than 5.0 mass sulfur can bePetroleum Products3diluted to bring the sulfur concentration of the diluted materialD 4177 Practice for Automatic Sampling of Petroleum andwithin the scope of this test method.Petroleum Products'1.4 Volatile samples (such as high vapor pressure gasolinesD 4294 Test Method for Sulfur in Petroleum Products byor light hydrocarbons)may not meet the stated precisionEnergy-Dispersive X-Ray Fluorescence Spectroscopy3because of selective loss of light materials during the analysis.D 4927 Test Methods for Elemental Analysis of Lubricant1.5 A fundamental assumption in this test method is that theand Additive Components-Barium,Calcium,Phospho-standard and sample matrix are well matched.Matrix mis-rus,Sulfur,and Zinc by Wavelength