BS 3680-4A:1981
Methods of measurement of liquid flow in open channels - Weirs and flumes - Method using thin-plate weirs

Standard No.

BS 3680-4A:1981

Release Date

1981

Published By

British Standards Institution (BSI)

Status

Be replaced 2008-05

Replace By

BS ISO 1438:2008

Latest

BS ISO 1438:2017

Scope

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.

BS 3680-4A:1981 history

• 2017 BS ISO 1438:2017 Hydrometry. Open channel flow measurement using thin-plate weirs
• 2008 BS ISO 1438:2008 Hydrometry - Open channel flow measurement using thin-plate weirs
• 1981 BS 3680-4A:1981 Methods of measurement of liquid flow in open channels - Weirs and flumes - Method using thin-plate weirs