scope:

This International Standard gives requirements for the establishment and operation of a gauging station for the measurement of stage,or stage and discharge,of a lake, reservoir,river or canal or other artificial open channel.It also describes how a gauging station utilizing one of the measurement methods listed should be operated and maintained.

Requirement are provided for stage only measurement stations, stage-discharge stations and direct discharge measurement stations in natural channels, as well as for stage-discharge stations with artificial structures. Additionally, some requirements are given for measurements undert difficult conditions, such as under ice conditions.