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ISO 2186:2007PublishedFluid flow in closed conduits — Connections for pressure signal transmissions between primary and secondary elementsISO 2975-6:1977PublishedMeasurement of water flow in closed conduits — Tracer methods — Part 6: Transit time method using non-radioactive tracersISO 2975-2:1975PublishedMeasurement of water flow in closed conduits — Tracer methods — Part 2: Constant rate injection method using non-radioactive tracersISO 2975-1:1974PublishedMeasurement of water flow in closed conduits — Tracer methods — Part 1: GeneralISO/TR 3313:2018PublishedMeasurement of fluid flow in closed conduits — Guidelines on the effects of flow pulsations on flow-measurement instrumentsISO 3354:2008PublishedMeasurement of clean water flow in closed conduits — Velocity-area method using current-meters in full conduits and under regular flow conditionsISO 3966:2025PublishedMeasurement of fluid flow in closed conduits — Velocity area method using Pitot static tubesISO 4006:1991PublishedMeasurement of fluid flow in closed conduits — Vocabulary and symbolsISO 4185:1980PublishedMeasurement of liquid flow in closed conduits — Weighing methodISO 5167-1:2022PublishedMeasurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 1: General principles and requirementsISO 5167-2:2022PublishedMeasurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 2: Orifice platesISO 5167-4:2022PublishedMeasurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 4: Venturi tubesISO 5167-5:2022PublishedMeasurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 5: Cone metersISO 5167-6:2022PublishedMeasurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 6: Wedge metersISO 5167-3:2022PublishedMeasurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 3: Nozzles and Venturi nozzlesISO 5168:2005PublishedMeasurement of fluid flow — Procedures for the evaluation of uncertaintiesISO 7066-2:1988PublishedAssessment of uncertainty in the calibration and use of flow measurement devices — Part 2: Non-linear calibration relationshipsISO 7194:2008PublishedMeasurement of fluid flow in closed conduits — Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or Pitot static tubesISO 8316:1987PublishedMeasurement of liquid flow in closed conduits — Method by collection of the liquid in a volumetric tankISO 9300:2022PublishedMeasurement of gas flow by means of critical flow nozzlesISO 9368-1:1990PublishedMeasurement of liquid flow in closed conduits by the weighing method — Procedures for checking installations — Part 1: Static weighing systemsISO/TR 9464:2023PublishedGuidelines for the use of ISO 5167:2022ISO/TR 9824:2007PublishedHydrometry — Measurement of free surface flow in closed conduitsISO 9951:1993PublishedMeasurement of gas flow in closed conduits — Turbine metersISO 10790:2015PublishedMeasurement of fluid flow in closed conduits — Guidance to the selection, installation and use of Coriolis flowmeters (mass flow, density and volume flow measurements)