ASTM D5089 - 95(2014)

    Standard Test Method for Velocity Measurements of Water in Open Channels with Electromagnetic Current Meters

    Active Standard ASTM D5089 | Developed by Subcommittee: D19.07

    Book of Standards Volume: 11.01


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    Significance and Use

    5.1 This test method is particularly used for measuring the velocity at a point in an open channel as part of a velocity-area traverse to determine the flowrate of water. To this end it should be used in conjunction with Test Method D3858. A single axis probe with cosine response will suffice for most of these applications.

    5.2 This test method is also useful in applications where the velocity itself (rather than a volumetric flowrate) is the desired end product.

    1. Scope

    1.1 This test method covers the use of single-axis or dual-axis electromagnetic current meters for the measurement of water velocities in open channels.

    1.2 This test method covers only these components and appurtenances of portable open-channel current-meter systems, which are customarily required when an operator is in attendance.

    1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D1129 Terminology Relating to Water

    D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water

    D3858 Test Method for Open-Channel Flow Measurement of Water by Velocity-Area Method

    D4409 Test Method for Velocity Measurements of Water in Open Channels with Rotating Element Current Meters

    ISO Standards

    ISO3454 Liquid Flow Measurement in Open Channels--Sounding and Suspension Equipment

    ISO3455 Liquid Flow Measurement in Open Channels--Calibration of Rotating Element Current Meters in Straight Open Tanks


    ICS Code

    ICS Number Code 17.120.20 (Flow in open channels)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/D5089

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