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  • BS EN ISO 748:2007

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    HYDROMETRY - MEASUREMENT OF LIQUID FLOW IN OPEN CHANNELS USING CURRENT-METERS OR FLOATS

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2007

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle of the methods of measurements
    5 Selection and demarcation of site
    6 Measurement of cross-sectional area
    7 Measurement of velocity
    8 Computation of discharge
    9 Uncertainties in flow measurement
    Annex A (informative) - Correction for sag, pull,
            slope and temperature in measurement of
            cross-section width by tape or wire
    Annex B (informative) - Distance measurement
            across the cross-section
    Annex C (informative) - Corrections for wetted
            length of wire when measuring depths with
            wire not normal to surface
    Annex D (informative) - Correction for drift
    Annex E (informative) - Uncertainties in the velocity-area
            measurement
    Annex F (informative) - Determination of mean velocity
            from float measurements
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes methods for determining the velocity and cross-sectional area of water flowing in open channels without ice cover, and for computing the discharge therefrom.

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

    Committee CPI/113/1
    Development Note Supersedes BS ISO 748. (10/2000) Supersedes 93/210839 DC. (06/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Superseded By
    Supersedes

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

    ISO 5168:2005 Measurement of fluid flow Procedures for the evaluation of uncertainties
    ISO 1100-2:2010 Hydrometry Measurement of liquid flow in open channels Part 2: Determination of the stage-discharge relationship
    ISO 4373:2008 Hydrometry Water level measuring devices
    ISO 3454:2008 Hydrometry Direct depth sounding and suspension equipment
    ISO 4369:1979 Measurement of liquid flow in open channels Moving-boat method
    ISO/TS 15768:2000 Measurement of liquid velocity in open channels Design, selection and use of electromagnetic current meters
    ISO 4366:2007 Hydrometry Echo sounders for water depth measurements
    ISO 1088:2007 Hydrometry Velocity-area methods using current-meters Collection and processing of data for determination of uncertainties in flow measurement
    ISO/TR 9209:1989 Measurement of liquid flow in open channels — Determination of the wetline correction
    ISO 1100-1:1996 Measurement of liquid flow in open channels — Part 1: Establishment and operation of a gauging station
    ISO 4375:2014 Hydrometry Cableway systems for stream gauging
    ISO 2537:2007 Hydrometry Rotating-element current-meters
    ISO 9196:1992 Liquid flow measurement in open channels Flow measurements under ice conditions
    ISO 772:1996 Hydrometric determinations — Vocabulary and symbols
    ISO 3455:2007 Hydrometry Calibration of current-meters in straight open tanks
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
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