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.
Fittings for the food chemical and pharmaceutical industry - Aseptic connection - Part 2: Aseptic stainless steel flanged pipe connection for welding— 17 стр.
Fittings for the food chemical and pharmaceutical industry - Aseptic connection - Part 1: Aseptic stainless steel screwed pipe connection for welding— 16 стр.