ISO 1100-2:2010 PDF

Scope: This part of ISO 1100 specifies methods of determining the stage-discharge relationship for a gauging station. A sufficient number of discharge measurements, complete with corresponding stage measurements, are required to define a stage-discharge relationship to the accuracy required by this part of ISO 1100. Stable and unstable channels are considered, including brief descriptions of the effects on the stage-discharge relationship of shifting controls, variable backwater and hysteresis. Methods of determining discharge for twin-gauge stations, ultrasonic velocity-measurement stations, electromagnetic velocity-measurement stations and other complex rating curves are not described in detail. These types of rating curve are described separately in other International Standards, Technical Specifications and Technical Reports, which are listed in Clause 2 and the Bibliography.

ISO 1100-2:2010 Referenced Document

ISO 15769 Hydrometry - Guidelines for the application of acoustic velocity meters using the Doppler and echo correlation methods
ISO 5168 Measurement of fluid flow - Procedures for the evaluation of uncertainties
ISO 748 Hydrometry — Measurement of liquid flow in open channels — Velocity area methods using point velocity measurements*， 2021-11-15 Update
ISO 772 Hydrometry — Vocabulary and symbols*， 2022-02-28 Update
ISO 9123 Hydrometry - Stage-fall-discharge relationships*， 2017-10-01 Update
ISO/TS 24154 Hydrometry - Measuring river velocity and discharge with acoustic Doppler profilers

2010 ISO 1100-2:2010 Hydrometry - Measurement of liquid flow in open channels - Part 2: Determination of the stage-discharge relationship
2000 ISO 1100-2:1998/Cor 1:2000 Measurement of liquid flow in open channels - Part 2: Determination of the stage-discharge relation; Technical Corrigendum 1
1998 ISO 1100-2:1998 Measurement of liquid flow in open channels - Part 2: Determination of the stage-discharge relation
1982 ISO 1100-2:1982 Liquid flow measurement in open channels — Part 2: Determination of the stage-discharge relation