ASTM_D_8273_-_20.pdf

Designation:D827320Standard Practice forDetermination of Total and Available Cyanide in Solid Wasteand Soil after Alkaline Extraction1This standard is issued under the fixed designation D8273;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 is used for the determination of total oravailable cyanide in solid waste,sediment and soil samplesafter alkaline extraction.Simple cyanide(CN-)salts of group 1and group 2(alkali and alkaline earth)metals;soluble alkaliand alkaline earth salts of zinc,copper,cadmium,mercury,nickel,silver,and iron cyanide complexes;and insolublemetal-metal cyanide complexes,such as Prussian blue,arequantitatively recovered.Gold,platinum group metals andcobalt cyanide complexes are not recovered during analysis.1.2 Free cyanide cannot be determined due to the change ofequilibrium conditions during the extraction process.1.3 Cyanide complexes are extracted into an alkaline solu-tion as described in this practice.Measure the total cyanideusing Test Methods D7511 or D7284.Measure the availablecyanide using Test Method D6888.Calculate cyanide contentin the soil or waste.1.4 The method detection limit(MDL)is dependent on thetest method used to measure the cyanide content.Based on themethods cited,it is approximately 1 mg/kg and the minimumlevel(ML)is 5 mg/kg.The applicable range is also dependenton the test method used to measure cyanide.Based on themethods cited,it is 5 to 100 mg/kg.1.5 This practice should be used by analysts experiencedwith extractions and flow injection analysis(FIA),or workingunder the close supervision of such qualified persons.1.6 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.7 This practice offers a set of instructions for performingone or more specific operations.This document cannot replaceeducation or experience and should be used in conjunction withprofessional judgment.Not all aspects of this practice may beapplicable in all circumstances.This ASTM standard is notintended to represent or replace the standard of care by whichthe adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projects many unique aspects.The word“Standard”in thetitle means only that the document has been approved throughthe ASTM consensus process.1.8 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 limitations prior to use.Specific hazardstatements are given in Section 9.1.9 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:2D1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD3856 Guide for Management Systems in LaboratoriesEngaged in Analysis of WaterD4210 Practice for Intralaboratory Quality Control Proce-dures and a Discussion on Reporting Low-Level Data(Withdrawn 2002)3D5847 Practice for Writing Quality Control Specificationsfor Standard Test Methods for Water AnalysisD6696 Guide for Understanding Cyanide SpeciesD6888 Test Method for Available Cyanides with LigandDisplacement and Flow InjectionAnalysis(FIA)UtilizingGas Diffusion Separation and Amperometric DetectionD7284 Test Method for Total Cyanide in Water by MicroDistillation followed by Flow Injection Analysis with GasDiffusion Separation and Amperometric Detection1This practice is under the jurisdiction of ASTM Committee D19 on Water andis the direct responsibility of Subcommittee D19.06 on Methods for Analysis forOrganic Substances in Water.Current edition approved Jan.1,2020.Published February 2020.DOI:10.1520/D8273-20.2For 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 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 Techni