1、Designation:E291414Standard Practice forUltrasonic Extraction of Lead from Composited WipeSamples1This standard is issued under the fixed designation E2914;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A n
2、umber 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 the extraction of lead(Pb)usingultrasonication,heat and nitric acid from a composited sampleof up to four individual wi
3、pe samples of settled dust collectedfrom the same space.1.2 This practice contains notes which are explanatory andnot part of mandatory requirements of the practice.1.3 This practice should be used by analysts experienced indigestion techniques such as hot blocks.Like all proceduresused in an analyt
4、ical laboratory,this practice needs to bevalidated for use and shown to produce acceptable resultsbefore being applied to client samples.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4.1 ExceptionInch-pound units are prov
5、ided in Note 6and Note 8 for information.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 li
6、mitations 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),Fla
7、me 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 DustE1979
8、Practice for Ultrasonic Extraction of Paint,Dust,Soil,and Air Samples for Subsequent Determination ofLeadE2051 Practice for the Determination of Lead in Paint,Settled Dust,Soil and Air Particulate by Field-PortableElectroanalysis(Withdrawn 2010)3E2239 Practice for Record Keeping and Record Preservat
9、ionfor Lead Hazard Activities2.2 ISO Standards:4ISO/IEC 17025:2005 General Requirements for the Compe-tence of Testing and Calibration LaboratoriesISO 3585 Borosilicate Glass 3.3 Properties Third Edition2.3 Other Document:540 CFR Part 745 Lead-Based Paint Poisoning Prevention inCertain Residential S
10、tructures3.Terminology3.1 For definitions of terms not appearing here,refer toTerminology D1129,Specification D1193 and TerminologyE1605.3.2 Definitions of Terms Specific to This Standard:3.2.1 composited samplethe single sample resulting fromthe combination of individual samples collected from diff
11、erentsections of the same area.3.2.2 validationthe confirmation by examination and theprovision of objective evidence that the particular requirementsfor a specific intended use are fulfilled ISO 17025:2005(5.4.5.1).1This practice is under the jurisdiction of ASTM Committee E06 on Perfor-mance of Bu
12、ildings and is the direct responsibility of Subcommittee E06.23 on LeadHazards Associated with Buildings.Current edition approved May 1,2014.Published June 2014.DOI:10.1520/E2914-142For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.F
13、or 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 International Organization for Standardization(ISO),1,ch.dela Voie-Creuse,CP 56,CH-12
14、11 Geneva 20,Switzerland,http:/www.iso.org.5Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE,Washington,DC 20401,http:/www.access.gpo.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United
15、States1 3.2.3 The laboratory is responsible for validating6,7,8,9non-standard methods,laboratory-designed/developed methods,standard methods used outside their intended scope,andamplifications and modifications of standard methods to con-firm that the methods are fit for the intended use.The validat
16、ionshall be as extensive as is necessary to meet the needs of thegiven application or field of application.The laboratory shallrecord the results obtained,the procedure used for thevalidation,and a statement as to whether the method is fit forthe intended use.NOTE1It is the responsibility of the laboratory to carry out its testingactivities in such a way as to satisfy the needs of the client,the regulatoryauthorities,and organizations providing recognition.4.Summary of Practice4.1 Up to four wip