BS EN ISO/ASTM 52948:2026

This standard BS EN ISO/ASTM 52948:2026 Additive manufacturing of metals — Powder bed fusion — Classification of imperfections is classified in these ICS categories:

• 25.030 Additive manufacturing
• 19.100 Non-destructive testing

This document specifies a classification of the imperfections likely to be generated during an additive manufacturing operation by PBF-LB (laser beam powder bed fusion) or PBF-EB (electron beam powder bed fusion) for metal parts. This document also indicates the most probable causes of the formation of imperfections and gives some illustrations taken from feedback. NOTE This classification applies to both PBF-LB and PBF-EB processes and can be extended to other additive manufacturing processes.