2011SL 537-2011 Code for Measurement of Discharge by Hydraulics Structures, Weirs and Flumes
1992SL 20-1992 Measurement of discharge byhydrarlic structures
SL 20-1992 Measurement of discharge byhydrarlic structures was changed to SL 537-2011 Code for Measurement of Discharge by Hydraulics Structures, Weirs and Flumes.