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About This Item

 

Full Description

ISO 3455:2021 specifies a calibration method for mechanical type, electromagnetic type and acoustic type hydrometric current-meters used for point velocity measurement of flowing water. The method requires towing the instrument through still water in a straight open tank. It includes measuring apparatus, the calibration procedure, the method of presenting the results and the uncertainties associated with the method.

 

Document History

  1. ISO 3455:2021

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    Hydrometry - Calibration of current-meters in straight open tanks

    • Most Recent
  2. ISO 3455:2007


    Hydrometry - Calibration of current-meters in straight open tanks

    • Historical Version
  3. ISO 3455:1976


    Liquid flow measurement in open channels - Calibration of rotating-element current-meters in straight open tanks

    • Historical Version