The production of metal alloy parts is increasing being done using additive manufacturing (3D printing) processes. 3D metal printers use a metal alloy powder that is fused by a laser in depositional layers 30-50µm thick. The part is thus progressively built up layer by layer until the desired form is completed. This technology is now commonly being applied to the production of mission critical components in the aerospace medical industries. Verifying the quality of the powder material is an important quality control step in the process. Our certified reference materials can assist with that process.