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Significance and Use
5.1 Although Palmer-Bowlus flumes can be used in many types of open channels, they are particularly adaptable for permanent or temporary installation in circular sewers. Commercial flumes are available for use in sewers from 4 in. to 6 ft (0.1 to 1.8 m) in diameter.
5.2 A properly designed and operated Palmer-Bowlus is capable of providing accurate flow measurements while introducing a relatively small head loss and exhibiting good sediment and debris-passing characteristics.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1129 Terminology Relating to Water
D1941 Test Method for Open Channel Flow Measurement of Water with the Parshall Flume
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
D5242 Test Method for Open-Channel Flow Measurement of Water with Thin-Plate Weirs
ASME StandardFluidMeters— Their Theory and Application
ISO StandardsISO555 Liquid Flow Measurements in Open Channels--Dilution Methods for Measurement of Steady Flow--Constant Rate Injection Method
ICS Number Code 17.120.20 (Flow in open channels)