IEC 62828-5:2020 establishes specific procedures for testing flow transmitters used in measuring and control systems for industrial process and for machinery control systems. For general test procedures, reference is to be made to IEC 62828-1:2017, applicable to all types of industrial and process measurement transmitters. This document – together with IEC 62828-1:2017 – is the reference standard for testing every type of flow transmitter, not only for liquids but also for gases and for steam. In this document, "industrial flow transmitters" consistently covers all types of flow transmitters used in measuring and control systems for industrial process and for machinery.