ASTM WK45498

    Revision of E2941 - 13 Standard Practice for Nitric Acid-Extraction of Elements from Ores and Related Metallurgical Materials by Closed Vessel Microwave Heating

    (What is a Work Item?)

    Active Standard: E2941 - 13

    Developed by Subcommittee: E01.02 | Committee E01 | Contact Staff Manager



    WK45498

    1. Rationale

    E2941-13 Practice for Nitric Acid-Extraction of Elements from Ores and Related Metallurgical Materials by Closed Vessel Microwave Heating is being revised with title change to include a total acid digestion method, since partial extraction with nitric acid may not provide the total metal content required for metallurgical accounting. Please approve the revision adding that alternative.


    Keywords

    atomic absorption; atomic emission; digestion; inductively coupled plasma mass spectrometry; microwave; mine soils; ores and related metallurgical materials; tailings; vessel; waste rock;
    Citing ASTM Standards
    Back to Top
    Work Item Status

    Date Initiated:
    03-24-2014

    Technical Contact:
    Charles Bucknam

    Item:
    001

    Ballot:
    E01 (14-03)

    Status:
    Withdrawn From Balloting

    Item:
    001

    Ballot:
    E01 (14-06)

    Status:
    Ballot Item Approved as E2941-2014 and Pending Publication