Standard Practice for Evaluating Performance Characteristics of Ultrasonic Pulse-Echo Testing Instruments and Systems without the Use of Electronic Measurement Instruments— 13 стр.
Aluminium and aluminium alloys - Wrought products and cast products - Special requirements for products intended for the production of pressure equipment
Aluminium and aluminium alloys - Wrought products and cast products - Special requirements for products intended for the production of pressure equipment; German version EN 12392:2016— 69 стр.