ASTM D7728 - 18

    Standard Guide for Selection of ASTM Analytical Methods for Implementation of International Cyanide Management Code Guidance

    Active Standard ASTM D7728 | Developed by Subcommittee: D19.06

    Book of Standards Volume: 11.02


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    Significance and Use

    5.1 This guide is intended as a means for selecting the proper methods for measuring cyanide to conform to the International Cyanide Management Code guidance related to the analysis of cyanide bearing solutions. Cyanide is analyzed in process solutions and in discharges in order to apply code guidance; however, improper sample collection and preservation can result in significant positive or negative bias, potentially resulting in over reporting or under reporting cyanide releases into the environment.

    5.2 This guide contains comparative test methods that are intended for use in routine monitoring of cyanide. It is assumed that all who use methods listed in this guide will be trained analysts capable of performing them skillfully and safely. It is expected that work will be performed in a properly equipped laboratory applying appropriate quality control practices such as those described in Guide D3856.

    1. Scope

    1.1 This guide is applicable for the selection of appropriate ASTM standard analytical methods for metallurgical processing sites to conform to International Cyanide Management Code guidance for the analysis of cyanide bearing solutions.

    1.2 The analytical methods in this guide are recommended for the sampling preservation and analysis of total cyanide, available cyanide, weak acid dissociable cyanide, and free cyanide by Test Methods D2036, D4282, D4374, D6888, D6994, D7237, D7284, and D7511.

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1129 Terminology Relating to Water

    D1193 Specification for Reagent Water

    D1976 Test Method for Elements in Water by Inductively-Coupled Plasma Atomic Emission Spectroscopy

    D2036 Test Methods for Cyanides in Water

    D3694 Practices for Preparation of Sample Containers and for Preservation of Organic Constituents

    D3856 Guide for Management Systems in Laboratories Engaged in Analysis of Water

    D4282 Test Method for Determination of Free Cyanide in Water and Wastewater by Microdiffusion

    D4374 Test Methods for Cyanides in Water--Automated Methods for Total Cyanide, Weak Acid Dissociable Cyanide, and Thiocyanate

    D4840 Guide for Sample Chain-of-Custody Procedures

    D4841 Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents

    D6696 Guide for Understanding Cyanide Species

    D6888 Test Method for Available Cyanides with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection

    D6994 Test Method for Determination of Metal Cyanide Complexes in Wastewater, Surface Water, Groundwater and Drinking Water Using Anion Exchange Chromatography with UV Detection

    D7237 Test Method for Free Cyanide and Aquatic Free Cyanide with Flow Injection Analysis (FIA) Utilizing Gas Diffusion Separation and Amperometric Detection

    D7284 Test Method for Total Cyanide in Water by Micro Distillation followed by Flow Injection Analysis with Gas Diffusion Separation and Amperometric Detection

    D7365 Practice for Sampling, Preservation and Mitigating Interferences in Water Samples for Analysis of Cyanide

    D7511 Test Method for Total Cyanide by Segmented Flow Injection Analysis, In-Line Ultraviolet Digestion and Amperometric Detection

    D7572 Guide for Recovery of Aqueous Cyanides by Extraction from Mine Rock and Soil

    ISO Standard

    ISO 17690:2015 Water QualityDetermination of Available Free Cyanide (pH 6) Using Flow Injection Analysis (FIA), Gas Diffusion, and Amperometric Detection


    ICS Code

    ICS Number Code 71.040.40 (Chemical analysis)

    UNSPSC Code

    UNSPSC Code


    Referencing This Standard
    Link Here
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    DOI: 10.1520/D7728-18

    Citation Format

    ASTM D7728-18, Standard Guide for Selection of ASTM Analytical Methods for Implementation of International Cyanide Management Code Guidance, ASTM International, West Conshohocken, PA, 2018, www.astm.org

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