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  • AS 3778.4.11-1991

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    Measurement of water flow in open channels - Measurement using flow gauging structures End-depth method for estimation of flow in non-rectangular channels with a free overfall (approximate method)

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Withdrawn date:  12-12-2019

    Language(s):  English

    Published date:  01-01-1991

    Publisher:  Standards Australia

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    Abstract - (Show below) - (Hide below)

    Specifies a method for the estimation of sub-critical flow of water in smooth, essentially horizontal, straight open channels with a vertical drop and discharging freely. It is technically identical with and reproduced from ISO 4371:1984.

    Scope - (Show below) - (Hide below)

    This International Standard specifies a method for the estimation of subcritical flow of clear water in smooth, essentially horizontal, straight open channels with a vertical drop and discharging freely. Gentle positive slopes not greater than 1 in 2 000 are admissible. This International Standard covers channels with the following types of cross-section, the nappe being unconfined:a) trapezoidal;b) triangular;c) parabolic;d) circular.Using the measured depth at the end, the flow can be estimated.

    General Product Information - (Show below) - (Hide below)

    Committee CE-024
    Document Type Standard
    Product Note Withdrawn 12-12-2019.
    Publisher Standards Australia
    Status Withdrawn
    Under Revision

    History - (Show below) - (Hide below)

    Reconfirmed 2009 First published as AS 3778.4.11-1991.Reconfirmed 2009. First published as AS 3778.4.11-1991.

    Standards Referenced By This Book - (Show below) - (Hide below)

    AS 3778.1-2001 Measurement of water flow in open channels - Vocabulary and symbols
    AS 3778.1-1990 Measurement of water flow in open channels - Vocabulary and symbols
    AS 3778.4.2-1991 Measurement of water flow in open channels Part 4: Measurement using flow gauging structures Rectangular broad-crested weirs
    AS 3778.4.10-1991 Measurement of water flow in open channels Measurement using flow gauging structures - End-depth method for estimation of flow in rectangular channels with a free overfall (Reconfirmed 2009)
    AS 3778.4.1-1991 Measurement of water flow in open channels Part 4: Measurement using flow gauging structures Thin-plate weirs

    Standards Referencing This Book - (Show below) - (Hide below)

    AS 3778.7-2008 Measurement of water flow in open channels Determination of volume of water and water level in lakes and reservoirs
    ATS 4747.6-2008 Meters for non-urban water supply - Installation and commissioning of open channel meters
    ATS 4747.3-2008 Meters for non-urban water supply - Specifications for open channel meters
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