ASTM_D_8404_-_21.pdf

Designation:D840421Standard Practice forPreparation of Soil Samples by Ammonium Bifluoride-NitricAcid Digestion for Subsequent Analysis for Metals andMetalloids1This standard is issued under the fixed designation D8404;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 practice covers drying,homogenization,and am-monium bifluoride-nitric acid digestion of soil samples andassociated quality control(QC)samples for the determinationof metals and metalloids using laboratory atomic spectrometryanalysis techniques such as inductively coupled plasma massspectrometry(ICP-MS),inductively coupled plasma atomicemission spectrometry(ICP-AES),flame atomic absorptionspectrometry(FAAS),and graphite furnace atomic absorptionspectrometry(GFAAS).For ammonium bifluoride-nitric aciddigestion of airborne dust and dust-wipe samples for thedetermination of metals and metalloids,see Practice D8344.1.2 This practice is based on U.S.EPA SW 846,TestMethod 3050,Test Method D7202,and Practice D8344.1.3 This practice contains notes that are explanatory and arenot part of the mandatory requirements of this standard.1.4 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for 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:2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD1356 Terminology Relating to Sampling and Analysis ofAtmospheresD3974 Practices for Extraction of Trace Elements fromSedimentsD4840 Guide for Sample Chain-of-Custody ProceduresD7202 Test Method for Determination of Beryllium in theWorkplace by Extraction and Optical Fluorescence Detec-tionD8344 Practice for Ammonium Bifluoride and Nitric AcidDigestion of Airborne Dust and Dust-Wipe Samples forthe Determination of Metals and MetalloidsE288 Specification for Laboratory Glass Volumetric FlasksE882 Guide for Accountability and Quality Control in theChemical Analysis LaboratoryE1154 Specification for Piston or Plunger Operated Volu-metric ApparatusE1605 Terminology Relating to Lead in BuildingsE1727 Practice for Field Collection of Soil Samples forSubsequent Lead Determination2.2 U.S.Government Analytical Method:3U.S.EPA SW 846 Test Methods for Evaluating Solid WastePhysical/Chemical Methods1This 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.1,2021.Published October 2021.DOI:10.1520/E8404-21.2For 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.3Available from United States Environmental ProtectionAgency(EPA),WilliamJefferson Clinton Bldg.,1200 Pennsylvania Ave.,NW,Washington,DC 20460,http:/www.epa.gov.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United 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 to Trade(TBT)Committee.12.3 ISO Standards:4ISO Guide 30 Terms and Definitions Used in Connectionwith Reference MaterialsISO 1042 Laboratory glassware One-mark volumetricflasksISO/IEC 17011 Conformity assessmentRequirements foraccreditation bodies accrediting conformity assessmentISO/IEC 17025 General requirements for the competence oftesting and calibration laboratories3.Terminology3.1 DefinitionsFor definitions of terms relating to thepreparation of soil samples that are not given here,refer toTerminologies D653,D1129,D1356,or E1605.3.1.1 batch,na group of field or quality control samplesthat are processed together using the same reagents andequipment.3.1.2 digestate,nthe acidified aqueous solution that re-sults from digestion of the