Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009— 19 стр.
Fertilizers and liming materials - Vocabulary - Part 1: General terms (including corrigendum AC:2000); German version EN 12944-1:1999 + AC:2000— 10 стр.
Fertilizers and liming materials - Vocabulary - Part 2: Terms relating to fertilizers (including corrigendum AC:2000); German version EN 12944-2:1999 + AC:2000— 8 стр.
Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version CEN/TS 15750:2008