This document describes the procedure for the measurement of the feed rate for thermal spraying with spray materials in powder form in a production environment. The application of this document is essential if information on the feed rate of a spray material in powder form is required when using a thermal spraying method. It is applicable to any thermal spraying method using spray materials in powder form (see EN ISO 14917) where the technical installation used allows the spray powder to be fed through without an activated spray gun. The determination of the feed rate is mandatory for the preparation of thermal spray procedure specifications in accordance with EN 17002 and the determination of the deposition efficiency in accordance with EN ISO 17836.