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ISO 18481:2017PublishedHydrometry — Liquid flow measurement using end depth method in channels with a free overfallISO 19234:2024PublishedHydrometry — Low cost baffles to aid fish passage on triangular profile gauging weirsISO 23350:2021PublishedHydrometry — Catching-type liquid precipitation measuring gaugesISO 24155:2016PublishedHydrometry — Hydrometric data transmission systems — Specification of system requirementsISO 24578:2021PublishedHydrometry — Acoustic Doppler profiler — Method and application for measurement of flow in open channels from a moving boatISO 25377:2020PublishedHydrometric uncertainty guidance (HUG)ISO 26906:2015PublishedHydrometry — Fishpasses at flow measurement structuresISO/DIS 24577Under developmentHydrometry — Use of noncontact methods for measuring water surface velocity and determining dischargeISO 555-2:1987WithdrawnLiquid flow measurement in open channels — Dilution methods for the measurement of steady flow — Part 2: Integration methodISO 555-3:1982WithdrawnLiquid flow measurement in open channels — Dilution methods for measurement of steady flow — Part 3: Constant rate injection method and integration method using radioactive tracersISO 555-2:1974WithdrawnLiquid flow measurement in open channels — Dilution methods for measurement of steady flow — Part 2: Integration (sudden injection) methodISO 555-1:1973WithdrawnLiquid flow measurement in open channels — Dilution methods for measurement of steady flow — Part 1: Constant-rate injection methodISO 748:2007WithdrawnHydrometry — Measurement of liquid flow in open channels using current-meters or floatsISO 748:1997WithdrawnMeasurement of liquid flow in open channels — Velocity-area methodsISO 748:1979WithdrawnLiquid flow measurement in open channels — Velocity-area methodsISO 772:2011WithdrawnHydrometry — Vocabulary and symbolsISO 772:1996WithdrawnHydrometric determinations — Vocabulary and symbolsISO 772:1988WithdrawnLiquid flow measurement in open channels — Vocabulary and symbolsISO 772:1978WithdrawnLiquid flow measurement in open channels — Vocabulary and symbolsISO 1070:1992WithdrawnLiquid flow measurement in open channels — Slope-area methodISO 1070:1973WithdrawnLiquid flow measurement in open channels — Slope-area methodISO 1088:1985WithdrawnLiquid flow measurement in open channels — Velocity-area methods — Collection and processing of data for determination of errors in measurementISO 1088:1973WithdrawnLiquid flow measurement in open channels — Velocity-area methods — Collection of data for determination of errors in measurementISO 1100-2:2010WithdrawnHydrometry — Measurement of liquid flow in open channels — Part 2: Determination of the stage-discharge relationshipISO 1100-2:1998WithdrawnMeasurement of liquid flow in open channels — Part 2: Determination of the stage-discharge relation