Weirs Flow Meters - Standards

Methods for flow measurement are described in detail in international standards, national standards, association standards and numerous hydraulic textbooks and handbooks. Some of the most used standardization organizations are:

• the International Organization for Standardization (ISO)
• the American Society for Testing and Materials (ASTM)
• the American Society of Mechanical Engineers (ASME)
• the British Standards Institute (BSI)
• the National Institute for Science and Technology (NIST)

ASTM Flow Standards - the American Society of Mechanical Engineers

• ASTM D 5242 - STANDARD TEST METHOD FOR OPEN-CHANNEL FLOW MEASUREMENT OF WATER WITH THIN-PLATE WEIRS
• ASTM D 5614 - STANDARD TEST METHOD FOR OPEN CHANNEL FLOW MEASUREMENT OF WATER WITH BROAD-CRESTED WEIRS
• ASTM D 5640 - STANDARD GUIDE FOR SELECTION OF WEIRS AND FLUMES FOR OPEN-CHANNEL FLOW MEASUREMENT OF WATER
• ASTM D 5716 - STANDARD TEST METHOD FOR MEASURING THE RATE OF WELL DISCHARGE BY CIRCULAR ORIFICE WEIR

AWWA Flow Standards - the American Water Works Association

• AWWA C909 - MATCHED-DIE-MOLDED, FIBERGLASS-REINFORCED PLASTIC WEIR PLATES, SCUM BAFFLES, AND MOUNTING BRACKETS
• AWWA F102 - MATCHED-DIE-MOLDED, FIBERGLASS-REINFORCED PLASTIC WEIR PLATES, SCUM BAFFLES, AND MOUNTING BRACKETS

BS Flow Standards - the British Standards Institute

• BS 3680 P4A - METHOD USING THIN-PLATE WEIRS
• BS 3680 P4B - TRIANGULAR PROFILE WEIRS
• BS 3680 P4E - RECTANGULAR BROAD-CRESTED WEIRS
• BS 3680 P4I - V-SHAPED BROAD CRESTED WEIRS
• BS 3680-4F - ROUND NOSE HORIZONTAL BROAD-CRESTED WEIRS
• BS ISO 4377 - HYDROMETRIC DETERMINATIONS - FLOW MEASUREMENT IN OPEN CHANNELS USING STRUCTURES - FLAT-V WEIRS

DIN Flow Standards - Deutsches Institut für Normung eV

• DIN 19558 - SEWAGE TREATMENT PLANTS; WEIR AND SCUM BAFFLE; ARRANGEMENT, MAIN DIMENSIONS AND OVERFLOW RATE

GOST Flow Standards - Russian Federation

• GOST R 51657.4 - WATER FLOW MEASUREMENT IN HYDROMELIORATION AND WATER SUPPLY SYSTEMS. WATER DISCHARGE MEASUREMENT IN OPEN CHANNELS BY TRIANGULAR PROFILE WEIRS. GENERAL TECHNICAL REQUIREMENTS

ISO Flow Standards - International Organization for Standardization

• ISO 1438/1 - WATER FLOW MEASUREMENT IN OPEN CHANNELS USING WEIRS AND VENTURI FLUMES - PART 1: THIN-PLATE WEIRS
• ISO 3846 - LIQUID FLOW MEASUREMENT IN OPEN CHANNELS BY WEIRS AND FLUMES - RECTANGULAR BROAD - CRESTED WEIRS
• ISO 3847 - LIQUID FLOW MEASUREMENT IN OPEN CHANNELS BY WEIR
• ISO 4360 - LIQUID FLOW MEASUREMENT IN OPEN CHANNELS BY WEIRS
• ISO 4362 - MEASUREMENT OF LIQUID FLOW IN OPEN CHANNELS TRAPEZOIDAL PROFILE WEIRS
• ISO 4374 - LIQUID FLOW MEASUREMENT IN OPEN CHANNELS - ROUND-NOSE HORIZONTAL BROAD-CRESTED WEIRS
• ISO 4377 - HYDROMETRIC DETERMINATIONS - FLOW MEASUREMENT IN OPEN CHANNELS USING STRUCTURES - FAT-V WEIRS
• ISO 8333 - LIQUID FLOW MEASUREMENT IN OPEN CHANNELS BY WEIRS
• ISO 9827 - MEASUREMENT OF LIQUID FLOW IN OPEN CHANNELS BY WEIRS AND FLUMES - STREAMLINED TRIANGULAR PROFILE WEIRS

SAA Flow Standards - Standards Australia

• SAA AS 3778.4.1 - MEASUREMENT USING FLOW GAUGING STRUCTURES - THIN-PLATE WEIRS
• SAA AS 3778.4.2 - MEASUREMENT USING FLOW GAUGING STRUCTURES - RECTANGULAR BROAD- CRESTED WEIRS
• SAA AS 3778.4.3 - MEASUREMENT USING FLOW GAUGING STRUCTURE - ROUND-NOSE HORIZONTAL BROAD-CRESTED WEIRS
• SAA AS 3778.4.4 - MEASUREMENT USING FLOW GAUGING STRUCTURES - V-SHAPED BROAD-CRESTED WEIRS
• SAA AS 3778.4.5 - MEASUREMENT USING FLOW GAUGING STRUCTURES - TRIANGULAR PROFILE WEIRS
• SAA AS 3778.4.6 - MEASUREMENT USING FLOW GAUGING STRUCTURE - FLAT-V WEIRS

TAPPI Flow Standards

• TAPPI TIP 0410-10 - WEIRS AND FLUMES

• Fluid Flow Measurement - An introduction to different types of fluid flowmeters - Orifices, Venturies, Nozzles, Rotameters, Pitot Tubes, Calorimetrics, Turbine, Vortex, Electromagnetic, Doppler, Ultrasonic, Thermal, Coriolis.
• Measuring Flow Rate with Weirs - Weirs are often used for measuring flow rates in open channels and rivers in connection to water supply and sewage plants.