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  • BSI
    BS ISO 18320:2020 Hydrometry. Measurement of liquid flow in open channels. Determination of the stage-discharge relationship
    Edition: 2020
    $564.17
    / user per year

Description of BS ISO 18320:2020 2020

This document specifies methods of determining the stage–d ischarge relationship for gauging stations. It specifies an accuracy for defining the stage–discharge relationship based on a sufficient number of discharge measurements, complete with corresponding stage measurements.

This document considers stable and unstable channels and includes brief descriptions of the effects on the stage–discharge relationship of the transition from inbank to overbank flows, shifting controls, variable backwater and hysteresis. Methods of determining discharge for twin-gauge stations, ultrasonic velocity-measurement stations and other complex rating curves are not described in detail.

NOTE

These types of rating curves are described separately in other International Standards, Technical Specifications and Technical Reports, which are listed in the Bibliography.



Standard NumberBS ISO 18320:2020
TitleHydrometry. Measurement of liquid flow in open channels. Determination of the stage-discharge relationship
StatusDefinitive
Publication Date2020-08-13
Identical National Standard OfISO 18320:2020
DescriptorsChannels (hydraulic), Open-channel flow, Flow, Liquid flow, Hydrometry
ICS17.120.20 Flow in open channels
CommitteeCPI/113
ISBN978 0 580 98778 6
PublisherBSI
Pages56



About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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