NEN-EN-ISO 748
Hydrometrie - Meting van debiet in open waterlopen - Methoden om met snelheidsmetingen op verscheidene punten in de natte doorsnede het debiet te bepalen
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 December 2021 |
| Status: | active |
| Page Count: | 58 |
| ICS Code (Flow in open channels): | 17.120.20 |
scope:
This document specifies methods for determining the velocity and cross-sectional area of water flowing in open channels and for calculating the discharge employing point velocity measurement devices.
It is applicable to methods using rotating-element current meters, acoustic doppler velocimeters (ADVs), acoustic doppler current profiler (ADCP) stationary method, surface velocity measurement including floats and other surface velocity systems.
Although some general procedures are discussed, this document does not describe in detail how to use or deploy these systems.
NOTE For detailed procedures, refer to guidelines from instrument manufacturers and the appropriate public agencies.
Document History
NEN-EN-ISO 748
December 1, 2021
Hydrometrie - Meting van debiet in open waterlopen - Methoden om met snelheidsmetingen op verscheidene punten in de natte doorsnede het debiet te bepalen
This document specifies methods for determining the velocity and cross-sectional area of water flowing in open channels and for calculating the discharge employing point velocity measurement devices....
October 1, 2007
Hydrometry - Measurement of liquid flow in open channels using current-meters or floats
This International Standard specifies methods for determining the velocity and cross-sectional area of water flowing in open channels without ice cover, and for computing the discharge therefrom. It...
May 1, 2005
Measurement of liquid flow in open channels - Velocity-area methods
This International Standard specifies methods for determining the velocity and cross-sectional area of water flowing in open channels without ice cover, and for computing the discharge therefrom. It...
February 1, 2000
Measurement of liquid flow in open channels - Velocity-area methods
Specifies methods for determining the velocity and cross-sectional area of water flowing in open channels without ice cover, and for computing the discharge therefrom.