ASTM_D_5284_-_09.pdf

Designation:D528409Standard Test Method forSequential Batch Extraction of Waste with Acidic ExtractionFluid1This standard is issued under the fixed designation D5284;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 test method provides a procedure for the sequentialleaching of a waste containing at least 5%dry solids in orderto generate solutions to be used to determine the constituentsleached under the specified testing conditions.1.2 This test method calls for the shaking of a known weightof waste with acidic extraction fluid of a specified compositionas well as the separation of the liquid phase for analysis.ThepH of the extraction fluid is to reflect the pH of acidicprecipitation in the geographic region in which the waste beingtested is to be disposed.The procedure is conducted ten timesin sequence on the same sample of waste,and it generates tensolutions.1.3 This test method is intended to describe the procedurefor performing sequential batch extractions only.It does notdescribe all types of sampling and analytical requirements thatmay be associated with its application.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 This standard does not purport to address all of thesafety problems,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:2D75 Practice for Sampling AggregatesD420 Guide to Site Characterization for Engineering Designand Construction Purposes(Withdrawn 2011)3D653 Terminology Relating to Soil,Rock,and ContainedFluidsD1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD2234/D2234M Practice for Collection of a Gross Sampleof CoalD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD3370 Practices for Sampling Water from Closed ConduitsD4793 Test Method for Sequential Batch Extraction ofWaste with Water3.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod,see Terminology D1129.3.2 SymbolsVariables listed in this test method are definedin the individual sections in which they are discussed.A list ofthe defined variables is also provided in Section 11.4.Significance and Use4.1 This test method is intended as a means for obtainingsequential extracts of a waste.The extracts may be used toestimate the release of certain constituents of the waste underthe laboratory conditions described in this test method.4.2 The pH of the extraction fluid used in this test method isto reflect the pH of acidic precipitation in the geographic regionin which the waste being tested is to be disposed.NOTE1Possible sources of information concerning the pH of precipi-tation in the geographic region of interest include state and federalenvironmental agencies,state universities,libraries,etc.NOTE2For sequential batch extraction of waste using a nonacidicextraction fluid,see Test Method D4793.4.3 An intent of this test method is for the final pH of eachof the extracts to reflect the interaction of the extractant withthe buffering capacity of the waste.4.4 This test method is not intended to provide extracts thatare representative of the actual leachate produced from a waste1This test method is under the jurisdiction of ASTM Committee D34 on WasteManagement and is the direct responsibility of Subcommittee D34.01.04 on WasteLeaching Techniques.Current edition approved July 1,2009.Published October 2009.Originallyapproved in 1992.Last previous edition approved in 2004 as D5284 93(2004)e1.DOI:10.1520/D5284-09.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 in the field or to produce extracts to be used as the sole basisof engineering design.4.5 This test method has not been demonstrated to simulateactual disposal site leaching conditions.4.6 This test method produces extracts that are amenable tothe determination of both major and minor(trace)constituents.When minor constituents are being determined,it is especiallyimportant that precautions be taken in sample storage andhandling to avoid possible contamination of the samples.4.7 This test method has been tested to determine itsapplicability to certain inorganic components in the wast