Standard Active Last Updated: Feb 24, 2022 Track Document
ASTM D1941-21

Standard Test Method for Open Channel Flow Measurement of Water with the Parshall Flume

Standard Test Method for Open Channel Flow Measurement of Water with the Parshall Flume D1941-21 ASTM|D1941-21|en-US Standard Test Method for Open Channel Flow Measurement of Water with the Parshall Flume Standard new BOS Vol. 11.01 Committee D19
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Significance and Use

5.1 Flume designs are available for throat sizes of 1 in. (2.54 cm) to 50 ft (15.2 m) which cover maximum flows of 0.2 to 3000 ft3/s (0.0057 to 85 m3/s) (1) and (2).4 They can therefore be applied to a wide range of flows, with head losses that are moderate.

5.2 The flume is self-cleansing for moderate solids transport and therefore is suited for wastewater and flows with sediment.

Scope

1.1 This test method covers measurement of the volumetric flowrate of water and wastewater in open channels with the Parshall flume.

1.1.1 Information related to this test method can be found in ISO 1438 and ISO 4359.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Details
Book of Standards Volume: 11.01
Developed by Subcommittee: D19.07
Pages: 11
DOI: 10.1520/D1941-21
ICS Code: 13.060.30