標準號：ISO 1070-1992
中文標準名稱：明渠水流測量 比降-面積法
英文標準名稱：Liquid flow measurement in open channels; slope-area method
標準類型：P12;A52
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：P12;A52
國際標準分類號：17.120.20
適用范圍：The method is suitable for use under somewhat special conditions when direct measurement of discharge by more accurate methods is not possible. It can be used with reasonable accuracy in open channels having stable boundaries, bed and sides (e.g. rock), in lined channels and in channels with relatively coarse material. In other cases it is subject to large uncertainties, and it is not suitable for use in very large channels, channels with very flat surface slopes and high sediment load or channnels having significant curvature.