1、Designation:E197912Standard Practice forUltrasonic Extraction of Paint,Dust,Soil,and Air Samplesfor Subsequent Determination of Lead1This standard is issued under the fixed designation E1979;the number immediately following the designation indicates the year oforiginal adoption or,in the case of rev
2、ision,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 practice covers an ultrasonic extraction procedurefor the extraction of lead from environmental samp
3、les ofinterest in lead abatement and renovation(or related)work,foranalytical purposes.1.2 Environmental matrices of concern include dry paintfilms,settled dusts,soils,and air particulates.1.3 Samples subjected to ultrasonic extraction are preparedfor subsequent determination of lead by laboratory a
4、nalyticalmethods.1.4 This practice includes,where applicable,descriptions ofprocedures for sample homogenization and weighing prior toultrasonic extraction.1.5 The values stated in SI units are to be regarded as thestandard.1.6 This practice does not purport to address all of thesafety concerns,if a
5、ny,associated with its use.It is theresponsibility of the user of this practice to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitation prior to use.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterD5438 Practice f
6、or Collection of Floor Dust for ChemicalAnalysisD6785 Test Method for Determination of Lead in WorkplaceAir Using Flame or Graphite Furnace Atomic AbsorptionSpectrometryD7144 Practice for Collection of Surface Dust by Micro-vacuum Sampling for Subsequent Metals DeterminationE631 Terminology of Build
7、ing ConstructionsE1605 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)TechniquesE1726 Practi
8、ce for Preparation of Soil Samples by HotplateDigestion for Subsequent Lead AnalysisE1727 Practice for Field Collection of Soil Samples forSubsequent Lead DeterminationE1728 Practice for Collection of Settled Dust Samples UsingWipe Sampling Methods for Subsequent Lead Determi-nationE1729 Practice fo
9、r Field Collection of Dried Paint Samplesfor Subsequent Lead DeterminationE1775 Guide for Evaluating Performance of On-Site Extrac-tion and Field-Portable Electrochemical or Spectrophoto-metric Analysis for LeadE1792 Specification for Wipe Sampling Materials for Leadin Surface Dust3.Terminology3.1 D
10、efinitions:For definitions of terms relating to thispractice that do not appear in this section,refer to Terminolo-gies E631 and E1605.3.1.1 extractionthe dissolution of target analytes from asolid matrix into a liquid form.3.1.1.1 DiscussionDuring sample digestion or extraction,target analytes are
11、extracted(solubilized)into solution toenable subsequent determination by analytical techniques(forexample,see Test Method E1613).3.1.2 ultrasonic extractionthe use of ultrasonic energyand acidic or basic solution to extract targeted analytes fromsamples.3.1.2.1 DiscussionThe extract solution is subs
12、equentlyanalyzed for the determination of targeted analytes.4.Summary of Practice4.1 Samples of paint,settled dust(wipe or vacuum),soil,orairborne particles,obtained by ASTM sample collection meth-ods(see Specification E1729;Practice E1728,Practice D54381This practice is under the jurisdiction of AS
13、TM Committee E06 on Perfor-mance of Buildings and is the direct responsibility of Subcommittee E06.23 on LeadHazards Associated with Buildings.Current edition approved July 15,2012.Published August 2012.Formerly PS8797.Originally adopted by Committee E06 in 1998.Last previous editionapproved in 2004
14、 as E1979 04.DOI:10.1520/E1979-12.2For 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.Copyright ASTM International,100
15、 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 and Practice D7144;Practice E1727,respectively),are sub-jected to ultrasonic extraction in dilute nitric acid for adelineated time period.4.2 Paint samples are ground,homogenized and weighed,ifnecessary,prior to ultrasonic
16、 extraction.4.3 Soil and bulk dust vacuum samples are sieved,homogenized,and weighed prior to ultrasonic extraction.4.4 If applicable,dust filter samples are weighed prior toultrasonic extraction.4.5 Sample extracts are diluted with ASTM Type I water(see Specification D1193)in preparation for subsequent deter-mination of lead by analytical techniques(for example TestMethod E1613,Guide E1775,and NIOSH methods 7082,7105,and 7300(1)3).4.6 This practice was developed based on an EPA standardoperatin