Non-destructive testing - Qualification and certification of NDT personnel; Supplement 1: Recomandations to the application of DIN EN ISO 9712:2012-12— 4 стр.
Non-destructive testing - Penetrant testing and magnetic particle testing - Viewing conditions (ISO 3059:2012); German version EN ISO 3059:2012— 12 стр.
Aerospace - Self-locking nuts with reduced locking torque with maximum operating temperature less than or equal to 425 °C - Technical Specification— 35 стр.