ISO 26906:2015
Hydrometry - Fishpasses at flow measurement structures

Standard No.

ISO 26906:2015

Release Date

2015

Published By

International Organization for Standardization (ISO)

Latest

ISO 26906:2015

Scope

This International Standard 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.

ISO 26906:2015 Referenced Document

• ISO 13550:2002 Hydrometric determinations - Flow measurements in open channels using structures - Use of vertical underflow gates
• ISO 14139:2000 Hydrometric determinations - Flow measurements in open channels using structures - Compound gauging structures
• ISO 1438:2008 Hydrometry - Open channel flow measurement using thin-plate weirs
• ISO 3846:2008 Hydrometry - Open channel flow measurement using rectangular broad-crested weirs
• ISO 4359:2013 Flow measurement structures - Rectangular, trapezoidal and U-shaped flumes
• ISO 4360:2008 Hydrometry - Open channel flow measurement using triangular profile weirs
• ISO 4374:1990 Liquid flow measurement in open channels; round-nose horizontal broad-crested weirs
• ISO 4377:2012 Hydrometric determinations - Flow measurement in open channels using structures - Flat-V weirs
• ISO 772:2011 Hydrometry - Vocabulary and symbols
• ISO 8333:1985 Liquid flow measurement in open channels by weirs and flumes; V-shaped broad-crested weirs
• ISO 8368:1999 Hydrometric determinations - Flow measurements in open channels using structures - Guidelines for selection of structure
• ISO 9826:1992 Measurement of liquid flow in open channels; Parshall and SANIIRI flumes
• ISO 9827:1994 Measurement of liquid flow in open channels by weirs and flumes - Streamlined triangular profile weirs
• ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
• ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
• ISO/TS 25377:2007 Hydrometric uncertainty guidance (HUG)

ISO 26906:2015 history

• 2015 ISO 26906:2015 Hydrometry - Fishpasses at flow measurement structures
• 2009 ISO 26906:2009 Hydrometry - Fishpasses at flow measurement structures