UNE-EN 9278:2018 Aerospace series - General Principles of Obsolescence Management of chemicals, materials and processes (Endorsed by Asociación Española de Normalización in September of 2018.)
2018UNE-EN 9278:2018 Aerospace series - General Principles of Obsolescence Management of chemicals, materials and processes (Endorsed by Asociación Española de Normalización in September of 2018.)