International Standard
ISO 9123:2017
Hydrometry — Stage-fall-discharge relationships
Reference number
ISO 9123:2017
ISO 9123:2017
Edition 2
2017-10
2017-10
© ISO 2024
International Standard
p
ISO 9123:2017
66300
Published
(Edition 2, 2017)
This standard was last reviewed and confirmed in 2023.
Therefore this version remains current.
Abstract
ISO 9123:2017 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.
NOTE For a more detailed description of preparing rating curves, see the methods described in ISO 1100‑2.
General information
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Status: PublishedPublication date: 2017-10Stage: International Standard confirmed [90.93]
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Edition: 2Number of pages: 29
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Technical Committee :ISO/TC 113/SC 1ICS :17.120.20
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Life cycle
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Previously
WithdrawnISO 9123:2001
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Now
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