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ISO/TR 11583:2012PublishedMeasurement of wet gas flow by means of pressure differential devices inserted in circular cross-section conduitsISO 11631:1998PublishedMeasurement of fluid flow — Methods of specifying flowmeter performanceISO 12242:2012PublishedMeasurement of fluid flow in closed conduits — Ultrasonic transit-time meters for liquidISO 12764:2017PublishedMeasurement of fluid flow in closed conduits — Flowrate measurement by means of vortex shedding flowmeters inserted in circular cross-section conduits running fullISO/TR 12767:2023PublishedMeasurement of fluid flow by means of pressure differential devices — Guidelines on the effect of departure from the specifications and operating conditions given in ISO 5167ISO 14164:1999PublishedStationary source emissions — Determination of the volume flowrate of gas streams in ducts — Automated methodISO 14511:2019PublishedMeasurement of fluid flow in closed conduits — Thermal mass flowmetersISO/TR 15377:2023PublishedMeasurement of fluid flow by means of pressure-differential devices — Guidelines for the specification of orifice plates, nozzles and Venturi tubes beyond the scope of ISO 5167 seriesISO 17089-1:2019PublishedMeasurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 1: Meters for custody transfer and allocation measurementISO 17089-2:2012PublishedMeasurement of fluid flow in closed conduits - Ultrasonic meters for gas — Part 2: Meters for industrial applicationsISO 20456:2017PublishedMeasurement of fluid flow in closed conduits — Guidance for the use of electromagnetic flowmeters for conductive liquidsISO 24062:2023PublishedMeasurement of fluid flow in closed conduits — Clamp-on ultrasonic transit-time meters for liquids and gasesISO 24460:2023PublishedMeasurement of fluid flow rate in closed conduits — Radioactive tracer methodsISO/DIS 5168Under developmentMeasurement of fluid flow — Procedures for the evaluation of uncertaintiesISO/DIS 9951Under developmentMeasurement of gas flow in closed conduits — Turbine metersISO/DIS 17089-2Under developmentMeasurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 2: Meters for industrial applicationsISO/DIS 17089-3Under developmentMeasurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 3: Meters for emission monitoring and reporting associated with flaring and ventingISO/DIS 25056Under developmentMeasurement of residence time distribution for mass flow characterization — Radioactive tracer methodISO/DTR 25582Under developmentInfluences of the velocity and temperature distribution on fluid flow measurement by using Pitot static tubesISO/R 541:1967WithdrawnWithdrawal of ISO/R 541-1967ISO/R 781:1968WithdrawnWithdrawal of ISO/R 781-1968ISO 2186:1973WithdrawnFluid flow in closed conduits — Connections for pressure signal transmissions between primary and secondary elementsISO 2975-7:1977WithdrawnMeasurement of water flow in closed conduits — Tracer methods — Part 7: Transit time method using radioactive tracersISO 2975-3:1976WithdrawnMeasurement of water flow in closed conduits — Tracer methods — Part 3: Constant rate injection method using radioactive tracersISO/TR 3313:1998WithdrawnMeasurement of fluid flow in closed conduits — Guidelines on the effects of flow pulsations on flow-measurement instruments