1、Designation:D834420Standard Practice forAmmonium Bifluoride and Nitric Acid Digestion of AirborneDust and Dust-Wipe Samples for the Determination ofMetals and Metalloids1This standard is issued under the fixed designation D8344;the number immediately following the designation indicates the year ofor
2、iginal 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 practice covers the digestion of airborne andsurface dust sampl
3、es(collected using air and wipe samplingpractices)and associated quality control(QC)samples for thedetermination of metals and metalloids by means of a mixtureof dilute ammonium bifluoride and nitric acid.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement a
4、re 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 esta
5、blish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles f
6、or theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1193 Specification for Reagent WaterD1356 Terminology Relating to Sampling and Analysis ofAtmospheresD41
7、85 Test Method for Measurement of Metals in Work-place Atmospheres by Flame Atomic Absorption Spectro-photometryD4532 Test Method for Respirable Dust in Workplace At-mospheres Using Cyclone SamplersD4840 Guide for Sample Chain-of-Custody ProceduresD6062 Guide for Personal Samplers of Health-RelatedA
8、ero-sol FractionsD6785 Test Method for Determination of Lead in WorkplaceAir Using Flame or Graphite Furnace Atomic AbsorptionSpectrometryD6966 Practice for Collection of Settled Dust SamplesUsing Wipe Sampling Methods for Subsequent Determi-nation of MetalsD7035 Test Method for Determination of Met
9、als and Met-alloids in Airborne Particulate Matter by InductivelyCoupled Plasma Atomic Emission Spectrometry(ICP-AES)D7144 Practice for Collection of Surface Dust by Micro-vacuum Sampling for Subsequent Metals DeterminationD7202 Test Method for Determination of Beryllium in theWorkplace by Extractio
10、n and Optical Fluorescence Detec-tionD7296 Practice for Collection of Settled Dust SamplesUsing Dry Wipe Sampling Methods for Subsequent De-termination of Beryllium and CompoundsD7439 Test Method for Determination of Elements in Air-borne Particulate Matter by Inductively Coupled Plasma-Mass Spectro
11、metryD7659 Guide for Strategies for Surface Sampling of Metalsand Metalloids for Worker ProtectionD7707 Specification for Wipe Sampling Materials for Beryl-lium in Surface DustD7822 Practice for Dermal Wipe Sampling for the Subse-quent Determination of Metals and MetalloidsE882 Guide for Accountabil
12、ity and Quality Control in theChemical Analysis LaboratoryE1370 Guide for Air Sampling Strategies for Worker andWorkplace ProtectionE1605 Terminology Relating to Lead in BuildingsE1613 Test Method for Determination of Lead by Induc-tively Coupled Plasma Atomic Emission Spectrometry(ICP-AES),Flame At
13、omic Absorption Spectrometry1This practice is under the jurisdiction ofASTM Committee D22 on Air Qualityand is the direct responsibility of Subcommittee D22.04 on Workplace Air Quality.Current edition approved Sept.1,2020.Published September 2020.DOI:10.1520/D8344-20.2For referenced ASTM standards,v
14、isit 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 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.Uni
15、ted StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers
16、 to Trade(TBT)Committee.(FAAS),or Graphite Furnace Atomic Absorption Spec-trometry(GFAAS)TechniquesE1644 Practice for Hot Plate Digestion of Dust WipeSamples for the Determination of LeadE1728 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(Wi
