ASTM WK42423

    Work Item: ASTM WK42423 - Revision of D7365 - 09a Standard Practice for Sampling, Preservation and Mitigating Interferences in Water Samples for Analysis of Cyanide

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    Active Standard: D7365 - 09a

    Developed by Subcommittee: D19.06 | Committee D19 | Contact Staff Manager



    1. Rationale

    ASTM D7365 is a Standard Practice that includes mitigation of interferences for cyanide methods. Numerous operators have reported interferences that seem to be related to high concentrations of surfactants (visible foam). Surfactants can interfere during cyanide distillations and also interfere with gas diffusion. D7365 needs to mention this interference and possible solutions.


    Keywords

    available cyanide; cyanide; free cyanide; hydrogen cyanide; interference; preservative; sample collection; total cyanide; Cyanides; Interferences; Preservation; Sampling; Water sampling;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    06-10-2013

    Technical Contact:
    William Lipps

    Status:
    Draft Under Development