Aluminium and aluminium alloys - Chemical composition and form of wrought products - Part 1: Numerical designation system; German version EN 573-1:2004— 10 стр.
Aluminium and aluminium alloys - Designation of alloyed aluminium ingots for remelting, master alloys and castings - Part 1: Numerical designation system; German version EN 1780-1:2002— 6 стр.