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    Edition History (7 Editions)

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    2010

    B149.1-10 (R2015)

    Withdrawn

    2005

    CAN/CSA-B149.1-05

    Withdrawn

    1986

    CAN/CGA-B149.1-M86

    Withdrawn

    1980

    CAN1-B149.1-M80

    Withdrawn

    1978

    CAN1-B149.1-78

    Withdrawn

    1974

    B149.1-1974

    Withdrawn

    1971

    B149.1-1971

    Withdrawn