UNE-CEN/TS 13445-501:2018 Unfired pressure vessels - Part 501: Acoustic emission for pressure vessels (Endorsed by Asociación Española de Normalización in February of 2019.)
2019UNE-CEN/TS 13445-501:2018 Unfired pressure vessels - Part 501: Acoustic emission for pressure vessels (Endorsed by Asociación Española de Normalización in February of 2019.)