Ductile iron pipes, fittings, accessories and their joints for sewerage applications - Requirements and test methods; German version EN 598:2007— 70 стр.
Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test methods; German version EN 969:1995/A1:1998— 3 стр.
Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen— 25 стр.