ASTM_F_3078_-_15.pdf

Designation:F307815Standard Test Method forIdentification and Quantification of Lead in Paint and SimilarCoating Materials using Energy Dispersive X-rayFluorescence Spectrometry(EDXRF)1This standard is issued under the fixed designation F3078;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()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method describes an energy dispersive X-rayfluorescence(EDXRF)procedure for determining the arealmass of Pb in mass per unit area in paint and similar coatingson common substrates of toys and consumer products,such asplastic,wood,steel,aluminum,zinc alloys or fabric.1.2 This test method is applicable for homogeneous,singlelayer paint or similar coatings.The method does not apply tometallic coatings.1.3 This test method is applicable for a range of Pb mass perunit area from 0.36 g/cm2to approximately 10 g/cm2for Pbin paint and similar coatings applied on common substrates.The lower limit of this test method is between 0.36 and 0.75g/cm2depending on the nature of the substrate.Based on theresults obtained during the interlaboratory study(ASTM Re-port F40-1004),it is estimated that the applicable range of thismethod can be extended up to 50 g/cm2.1.4 The values stated in SI units are to be regarded asstandard.Values given in parentheses are for information only.1.5 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 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D16 Terminology for Paint,Related Coatings,Materials,andApplicationsD883 Terminology Relating to PlasticsD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD6132 Test Method for Nondestructive Measurement of DryFilm Thickness of Applied Organic Coatings Using anUltrasonic Coating Thickness GageD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate AnalyticalMeasurement System PerformanceD7091 Practice for Nondestructive Measurement of DryFilm Thickness of Nonmagnetic Coatings Applied toFerrous Metals and Nonmagnetic,Nonconductive Coat-ings Applied to Non-Ferrous MetalsE135 Terminology Relating to Analytical Chemistry forMetals,Ores,and Related MaterialsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodC693 Test Method for Density of Glass by BuoyancyF2576 Terminology Relating to Declarable Substances inMaterials2.2 Other Standards:Consumer Products Safety Improvement Act of 2008(CP-SIA),Public Law 110-314,August 14,20083SSPC-PA2 Paint Application Standard No.2,Measurementof Dry Coating Thickness with Magnetic Gauges4NIST Special Publication 829 Use of NIST Standard Refer-ence Materials for Decisions on Performance of Analyti-cal Chemical Methods and Laboratories53.Terminology3.1 Definitions:3.1.1 Definitions of terms applying to X-ray fluorescence(XRF)spectrometry,plastics and declarable substances appear1This test method is under the jurisdiction of ASTM Committee F40 onDeclarable Substances in Materials and is the direct responsibility of SubcommitteeF40.01 on Test Methods.Current edition approved July 1,2015.Published September 2015.DOI:10.1520/F3078-152For 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.3Full text is available on the Consumer Products Safety Commission website:http:/www.cpsc.gov/PageFiles/113865/cpsia.pdf.4Available from Society for Protective Coatings(SSPC),40 24th St.,6th Floor,Pittsburgh,PA 15222,http:/www.sspc.org.5Available from National Institute of Standards and Technology(NIST),100Bureau Dr.,Stop 1070,Gaithersburg,MD 20899-1070,http:/www.nist.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 in Terminology E135,Terminology D883 and TerminologyF2576,respectively.Definitions of terms applying to Paintappear in Terminology D16.3.1.2 areal mass(or mass per unit area),nmass ofsubstance(element)contained in a unit area of surface overwhich substance(element)is uniformly spread.3.1.2.1 DiscussionThis way of expressing the mass of asubstance is typical and useful when material is present in aform of thin layer rather than bulk volume.The term is used notonly in XRF analysis but also in a variety of coating industryapplications.Areal mass is related to mass fraction through thethickness and density of the layer(see X1 for an