This International Standard deals specifically with the measurement of discharge in large rivers and the measurement of rivers in flood. It also describes the relevant field measurements when it becomes necessary to use indirect methods of estimating discharge.
BS ISO 9825:2005 history
0000 BS ISO 9825:2005(2009)
2005BS ISO 9825:2005 Hydrometry - Field measurement of discharge in large rivers and rivers in flood
1990BS 3680-3M:1990 Measurement of liquid flow in open channels - Stream flow measurement - Guide to the methods of measuring high discharges in rivers
BS ISO 9825:2005 Hydrometry - Field measurement of discharge in large rivers and rivers in flood has been changed from BS 3680-3M:1990 Measurement of liquid flow in open channels - Stream flow measurement - Guide to the methods of measuring high discharges in rivers.