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Full Description

BS ISO 26906:2015 specifies requirements for the integration of fishpasses with flow measurement structures. It identifies those fishpasses which have satisfactory hydrometric calibration data and gives methods for computing combined flows and uncertainties.

NOTE Flow measurement structures and fishpasses have inherently different hydraulic performance criteria. Flow measurement structures perform better with uniform flow patterns; conversely, fish passage performance is improved by the variability of the flow conditions that allow fish and other aquatic inhabitants to select the passage conditions that best meet their mode of movement. This International Standard does not suggest that the fishpasses discussed are the preferred methods of fish passage or that they are good enough that passage performance can be sacrificed to obtain a single structure that meets both the fish passage and flow measurement requirements.


Cross References:
ISO 772
ISO 14139
ISO/IEC Guide 98-3
ISO 1438
ISO 3846
ISO 4359
ISO 4360
ISO 4374
ISO 4377
ISO 8333
ISO 8368
ISO 9826
ISO 9827
ISO 13550
ISO/IEC 17025
ISO/TS 25377


All current amendments available at time of purchase are included with the purchase of this document.
 

Document History

  1. BS ISO 26906:2015

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    Hydrometry. Fishpasses at flow measurement structures

    • Most Recent
  2. BS ISO 26906:2009


    Hydrometry. Fishpasses at flow measurement structures

    • Historical Version
  3. BS 08/30168985 DC


    BS ISO 26906. Hydrometry. Fishpasses at flow measurement structures

    • Historical Version