ASTM E1600 - 15

    Standard Test Methods for Determination of Gold in Cyanide Solutions

    Active Standard ASTM E1600 | Developed by Subcommittee: E01.02

    Book of Standards Volume: 03.05


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    Significance and Use

    4.1 In primary metallurgical processes for gold bearing ores, gold is extracted with an alkaline cyanide solution. Metallurgical accounting, process control, and ore evaluation procedures depend on accurate, precise, and prompt measurements of the gold concentrations.

    4.2 These test methods are comparative referee methods for compliance with compositional specifications for metal concentration or to monitor processes. It is assumed that all who use these methods will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882, and that proper waste disposal procedures will be followed.

    1. Scope

    1.1 These test methods cover the determination of gold in ore processing cyanide solutions within the following ranges:

    Method

    Application Range,
    μg/mL

    Inductively Coupled Plasma Mass Spectrometry

    0.001 to 0.500

    Flame Atomic Absorption Spectrometry

    0.300 to 10.0

    Note 1: The lower limit for the Inductively Coupled Plasma Mass Spectrometry Method, 0.001 µg/mL, was set following the guidance of Practice E1601. The reproducibility Index, R, was calculated using the total standard deviation for the lowest concentration Youden pair solution.

    1.1.1 These test methods may also be applied to cyanide leach solutions from metallurgical evaluation procedures.

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

    1.3 The test methods appear in the following order:

    Method

    Sections

    Flame Atomic Absorption Spectrometry

    9 – 16

    Inductively Coupled Plasma Mass Spectrometry

    17 – 24

    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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautions are given in 11.1, 11.1.1, 11.5, and 12.2.


    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

    D1193 Specification for Reagent Water

    D1293 Test Methods for pH of Water

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

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

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials

    E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials

    E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals

    E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory

    E1060 Practice for Interlaboratory Testing of Spectrochemical Methods of Analysis

    E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method


    ICS Code

    ICS Number Code 73.060.99 (Other metalliferrous minerals)

    UNSPSC Code

    UNSPSC Code 41115407(Atomic absorption AA spectrometers)


    Referencing This Standard

    DOI: 10.1520/E1600-15

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM E1600-15, Standard Test Methods for Determination of Gold in Cyanide Solutions, ASTM International, West Conshohocken, PA, 2015, www.astm.org

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