Abstract
<jats:title>Description</jats:title> <jats:p>The increased application of additive manufacturing has created stakeholder demand for a guidance document that describes process characteristics and performance regarding general test methods for the characterization of powder flow properties. In powder feedstock-based processes, the flow properties of the powder have decisive importance related to the process reliability of an additive manufacturing process and the quality of the manufactured parts. Characterization of powder flow properties is subject to numerous variables. The meaningfulness of the results of the measurement therefore depends on these variables. Complete consideration of all variables, however, might not be cost-effective or time effective. Therefore, when measuring the flow properties, the nature and scope of the measurements to be conducted is an important issue.</jats:p> <jats:p>The information contained in the document is applicable to the conditions that have an influence on flow properties and on the necessary information in a test report.</jats:p> <jats:p>The information provided is of interest to test equipment manufacturers, material suppliers, additive machine manufacturers, and additive manufacturing machine users.</jats:p>