Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications; German version EN 292-2:1991 + A1:1995— 47 стр.
Components for slings - Safety - Part 2: Forged steel lifting hooks with latch, Grade 8; German version EN 1677-2:2000+A1:2008, Corrigendum to DIN EN 1677-2:2008-06— 2 стр.