BS ISO 18320:2020 - Hydrometry. Measurement of liquid flow in open channels. Determination of the stage-discharge relationship

BS ISO 18320:2020

Hydrometry. Measurement of liquid flow in open channels. Determination of the stage-discharge relationship

Status : Current   Published : August 2020

Format
PDF

Format
HARDCOPY



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
StatusCurrent
Publication Date13 August 2020
Normative References(Required to achieve compliance to this standard)ISO 772, ISO 748
Informative References(Provided for Information)ISO 4374, ISO 1088, ISO 4360, ISO 6416, ISO 9825, ISO 15769, ISO 4359, ISO 5168, ISO 8333, ISO 9123, ISO/TR 24578, ISO 80000-1, ISO 3846, ISO 4362, ISO 4373, ISO/TS 25377, ISO 1438, ISO 1070, ISO 4377, ISO/TR 9210
International RelationshipsISO 18320:2020
Draft Superseded By18/30361587 DC
DescriptorsChannels (hydraulic), Open-channel flow, Flow, Liquid flow, Hydrometry
ICS17.120.20
Title in FrenchHydrométrie. Measurage du débit des cours d'eau. Détermination de la relation hauteur–débit
CommitteeCPI/113/1
ISBN978 0 580 98778 6
PublisherBSI
FormatA4
DeliveryYes
Pages56
File Size2.893 MB
Price£260.00


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