ISO 1088:2007为收集和处理数据提供了标准依据，以确定使用流速计的流速面积法测量明渠流量时的不确定性。为了通过速度面积法确定明渠中的流量，需要测量水流的成分（速度、深度和宽度）。将部件测量值结合起来计算总流量。计算流量中的总不确定度是测量组件中不确定度的组合。 ISO 1088:2007旨在适用于速度面积法，该方法涉及在相对较少的离散深度和水流交叉中的横向位置测量点速度- 第节，如ISO 748所述。它不适用于声学多普勒速度剖面仪（ADVP）或其他产生流场基本连续速度剖面的仪器进行的测量。

ISO 1088:2007 provides a standard basis for the collection and processing of data for the determination of the uncertainties in measurements of discharge in open channels by velocity-area methods using current meters. To determine the discharge in open channels by the velocity-area method, components of the flow (velocity, depth and breadth) need to be measured. The component measurements are combined to compute the total discharge. The total uncertainty in the computed discharge is a combination of the uncertainties in the measured components. ISO 1088:2007 is intended to be applied to velocity-area methods that involve measurement of point velocities at a relatively small number of discrete depths and transverse positions in the flow cross-section, as described in ISO 748. It is not intended to be applied to measurements made by Acoustic Doppler Velocity Profilers (ADVP) or other instruments that produce essentially continuous velocity profiles of the flow field.