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BS 3680-4A:1981
M00000536
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BS 3680-4A:1981 Methods of measurement of liquid flow in open channels. Weirs and flumes. Method using thin-plate weirs
standard by BSI Group, 08/31/1981
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Specifies the installation, head measurement and assessment of the accuracy of discharge formulae for 2 types of weir - rectangular thin-plate and triangular notch thin-plate weirs. Also covers the assessment of the accuracy of discharge measurement.Cross References:
BS 3680:Part 1
BS 3680:Part 4C
ISO 4373
Incorporates the following:
AMD 5438 published 31 July 1987
AMD 10209, November 1998 (not available separately)