• ANSI B109.1 : 2000

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    DIAPHRAGM TYPE GAS DISPLACEMENT METERS (500 CUBIC FOOT PER HOUR CAPACITY AND UNDER)

    Publisher:  American Gas Association

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