ASTM_D_2036_-_09_2022.pdf

Designation:D203609(Reapproved 2022)Standard Test Methods forCyanides in Water1This standard is issued under the fixed designation D2036;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These test methods cover the determination of cyanidesin water.The following test methods are included:SectionsTest Method ATotal Cyanides after Distillation12 18Test Method BCyanides Amenable to Chlorination2by Difference19 25Test Method CWeak Acid Dissociable Cyanides26 32Test Method DCyanides Amenable to Chlorination withoutDistillation(Short-Cut Method)33 391.2 Cyanogen halides may be determined separately.NOTE1Cyanogen chloride is the most common of the cyanogenhalide complexes as it is a reaction product and is usually present whenchlorinating cyanide-containing industrial waste water.For the presenceor absence of CNCl,the spot test method given in Annex A1 can be used.1.3 These test methods do not distinguish between cyanideionsandmetallocyanidecompoundsandcomplexes.Furthermore,they do not detect the cyanates.Cyanates can bedetermined using ion chromatography without digestion.NOTE2The cyanate complexes are decomposed when the sample isacidified in the distillation procedure.1.4 The cyanide in cyanocomplexes of gold,platinum,cobalt and some other transition metals is not completelyrecovered by these test methods.Refer to Test Method D6994for the determination of cyanometal complexes.1.5 Cyanide from only a few organic cyanides arerecovered,and those only to a minor extent.1.6 Part or all of these test methods have been usedsuccessfully with reagent water and various waste waters.It isthe users responsibility to assure the validity of the testmethod for the water matrix being tested.1.7 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Specific hazard statements are given in 5.1,8.8,8.18,Section9,11.3,and 16.1.9.1.9 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:3D1129 Terminology Relating to WaterD1193 Specification for Reagent WaterD2777 Practice for Determination of Precision and Bias ofApplicable Test Methods of Committee D19 on WaterD5788 Guide for Spiking Organics into Aqueous SamplesD5847 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 DetectionD6994 Test Method for Determination of Metal CyanideComplexes in Wastewater,Surface Water,Groundwaterand Drinking Water Using Anion Exchange Chromatog-raphy with UV DetectionD7284 Test Method for Total Cyanide in Water by Micro1These test methods are under the jurisdiction of ASTM Committee D19 onWater and are the direct responsibility of Subcommittee D19.06 on Methods forAnalysis for Organic Substances in Water.Current edition approved May 1,2022.Published May 2022.Originallyapproved in 1964.Last previous edition approved in 2015 as D2036 09(2015).DOI:10.1520/D2036-09R22.2For an explanation of the term cyanides amenable to alkaline chlorination,seeLancy,L.E.and Zabban,W.,“Analytical Methods and Instrumentation forDetermining Cyanogen Compounds,”Papers on Industrial Water and IndustrialWaste Water,ASTM STP 337,1962,pp.3245.3For 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.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.1Distillation followed by Flow Injection Analysis with GasDiffusion Separatio