ISO 1070:2018

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ISO 1070:2018 is an International Standard that specifies a method for determining discharge in open channels using the slope-area method. This method relies on measuring the channel's surface slope and cross-sectional area to calculate the flow rate. It's particularly useful in situations where other flow measurement techniques, like the velocity-area method, are not suitable. The standard is commonly used to extend stage-discharge relationships beyond the highest gauged flows.