Zinc and zinc alloys - Chemical analysis - Part 5: Determination of iron in primary zinc - Spectrophotometric method; German version EN 12441-5:2003— 8 стр.
Plain bearings - Testing of the tribological behaviour of bearing materials - Part 2: Testing of polymer-based bearing materials (ISO 7148-2:1999)— 20 стр.
Zinc and zinc alloys - Chemical analysis - Part 5: Determination of iron in primary zinc - Spectrophotometric method; German version EN 12441-5:2003— 8 стр.