NEN-ISO 14139
Hydrometric determinations - Flow measurements in open channels using structures - Compound gauging structures
| Organization: | NEN |
| Publication Date: | 1 August 2000 |
| Status: | active |
| Page Count: | 48 |
| ICS Code (Flow in open channels): | 17.120.20 |
scope:
Specifies the methods of measurement of flow in rivers and artificial channels, using any combination of standard weirs and/or flumes in a compounds structure. For guidance on the selection of weirs and/or flumes, refer to ISO 8368. All structures can be operated in the modular flow range, but only a limited number of structures can be used in the drowned (non-modular) flow range. Compound weirs improve the quality of discharge measurements at low stages.
Document History