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NEN-ISO 9123

Hydrometry - Stage-fall-discharge relationships

active, Most Current
Organization: NEN
Publication Date: 1 November 2017
Status: active
ICS Code (Flow in open channels): 17.120.20
scope:

NEN-ISO 9123 specifies methods for determining stage-fall-discharge relationships for a stream reach where variable backwater occurs either intermittently or continuously. Two gauging stations, a base reference gauge and an auxiliary gauge are required for gauge height measurements. A number of discharge measurements are required in order to calibrate the rating to the accuracy required by this document. The preparation of rating curves is not described in detail in this document.

Document History

NEN-ISO 9123
November 1, 2017
Hydrometry - Stage-fall-discharge relationships
NEN-ISO 9123 specifies methods for determining stage-fall-discharge relationships for a stream reach where variable backwater occurs either intermittently or continuously. Two gauging stations, a...
NEN-ISO 9123
December 1, 2001
Measurement of liquid flow in open channels - Stage-fall-discharge relationships
Specifies methods for determining stage-fall-discharge relations for a stream reach where variable backwater occures either intermittently or continuously. Two gauging stations, a base reference...
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