ASTM_E_1644_-_04_2012e1.pdf

Designation:E164404(Reapproval 2012)1Standard Practice forHot Plate Digestion of Dust Wipe Samples for theDetermination of Lead1This standard is issued under the fixed designation E1644;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.1NOTEEditorial corrections made to Section 2 in April 2012.1.Scope1.1 This practice covers the acid digestion of surface dustsamples(collected using wipe sampling practices)and associ-ated quality control(QC)samples for the determination oflead.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.3 This practice contains notes which are explanatory andnot part of mandatory requirements of the standard.1.4 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:2D1129 Terminology Relating to WaterD1193 Specification for Reagent WaterE1605 Terminology Relating to Lead in BuildingsE1613 Test Method for Determination of Lead by Induc-tively Coupled Plasma Atomic Emission Spectrometry(ICP-AES),Flame Atomic Absorption Spectrometry(FAAS),or Graphite Furnace Atomic Absorption Spec-trometry(GFAAS)TechniquesE1728 Practice for Collection of Settled Dust Samples UsingWipe Sampling Methods for Subsequent Lead Determi-nationE1792 Specification for Wipe Sampling Materials for Leadin Surface DustE2051 Practice for the Determination of Lead in Paint,Settled Dust,Soil and Air Particulate by Field-PortableElectroanalysis(Withdrawn 2010)3E2239 Practice for Record Keeping and Record Preservationfor Lead Hazard Activities2.2 Other Documents:EPA SW 846,Method 3050,“Acid Digestion of Sediments,Sludges,and Soils.”This method is found in Test Methodsfor Evaluating Solid Waste,Physical/Chemical Methods,U.S.EPA SW 846,3rd Edition,Revision 1,19874NIOSH Manual of Analytical Methods,NIOSH 7082 and7105,Eller,P.M.,Ed.,3rd ed.,198443.Terminology3.1 DefinitionsFor definitions of terms not appearing here,refer to Terminologies D1129 and E1605.3.2 Definitions of Terms Specific to This Standard:3.2.1 blank wipean unused,unspiked dust wipe that isonly removed from its packaging immediately before use.3.2.1.1 DiscussionBlank wipes are used to prepare non-spiked,spiked,and spiked duplicate quality assurance samples.3.2.2 dust wipe samplesurface dust collected on a wipe.3.2.3 method blanka digestate that reflects the maximumtreatment given any one sample within a sample batch exceptthat only the sampling medium(such as a blank wipe)isinitially placed into the digestion vessel.(The same reagentsand processing conditions that are applied to field sampleswithin a batch are also applied to the method blanks.)3.2.3.1 DiscussionAnalysis results from method blanksprovide information on the level of potential contaminationresulting from the laboratory and sampling medium sourcesthat are experienced by samples processed within the batch.1This practice is under the jurisdiction of ASTM Committee E06 on Perfor-mance of Buildings and is the direct responsibility of Subcommittee E06.23 on LeadHazards Associated with Buildings.Current edition approved April 1,2012.Published May 2012.Originallyapproved in 1994.Last previous edition approved in 2004 as E1644 04.DOI:10.1520/E1644-04R12.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from National Technical Information Service(NTIS),5301 ShawneeRd.,Alexandria,VA 22312,http:/www.ntis.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.4 non-spiked samplea portion of a homogenizedsample that was targeted for the addition of analyte but is notfortified with the target analytes before sample preparation.3.2.4.1 DiscussionFor wipe samples,a non-spiked sampleis equivalent to a method blank.Analysis results for thissample are used to correct for background levels in the blankwipes used for spiked and spiked duplicate samples.3.2.5 reagent blanka digestate that reflects the maximumtreatment given any one sample within a sample batch exceptthat it has no sample placed into the digestion vessel.(Thesame reagents and processing conditions that are applied tofield samples within a batch are also applied to the reagentblank.)3.2.5.1 DiscussionAnalysis results from reagent blanksprovide info