Foodstuffs - Determination of nitrate and/or nitrite content - Part 5: Enzymatic determination of nitrate content of vegetable-containing food for babies and infants; German version EN 12014-5:1997
Edition 1997-08

Foodstuffs - Determination of nitrate and/or nitrite content - Part 7: Continuous flow method for the determination of nitrate content of vegetables and vegetable products after cadmium reduction; German version EN 12014-7:1998
Edition 1998-08

Water conditioning equipment inside buildings - Nitrate removal devices - Requirements for performance, safety and testing; German version EN 15219:2006+A1:2007
Edition 2008-02

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda; German version EN 15476:2009
Edition 2009-04

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Ulsch; German version EN 15558:2009
Edition 2009-06

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd; German version EN 15559:2009
Edition 2009-06

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German version EN 15560:2023
Edition 2023-10

Inorganic fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrates; German version EN 15561:2023
Edition 2023-10

Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; German version EN 15604:2009
Edition 2009-06

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
Edition 2010-02