ISO 17089-1:2019

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ISO 17089-1:2019 is a technical report from the International Organization for Standardization (ISO) that provides guidelines for the specification of orifice plates, nozzles, and Venturi tubes used in fluid flow measurement when those devices are outside the scope of the ISO 5167 series. It focuses on the geometry and method of use for these devices, offering recommendations for specific configurations like conical-entrance, quarter-circle, and eccentric orifice plates, as well as Venturi tubes with different convergent angles.