UNE-EN 2002-16:2019 Aerospace series - Metallic materials - Test methods - Part 16: Non-destructive testing - Penetrant testing (Endorsed by Asociación Española de Normalización in January of 2020.)
2020UNE-EN 2002-16:2019 Aerospace series - Metallic materials - Test methods - Part 16: Non-destructive testing - Penetrant testing (Endorsed by Asociación Española de Normalización in January of 2020.)