What is BS EN 15559 - Nitric and ammoniacal nitrogen in fertilizers about?
BS EN 15559 is a European standard that serves technical specifications for determining nitric and ammoniacal nitrogen in fertilizers, which enables the availability of nitrogen in plant roots for optimum plant growth.
BS EN 15559 specifies a method for the determination of nitric and ammoniacal nitrogen with reduction according to Arnd (modified for each of the variants a, b and c).
BS EN 15559 specifies method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which nitrogen is found exclusively in nitrate form, or in ammoniacal and nitrate form.
Who is BS EN 15559 - Nitric and ammoniacal nitrogen in fertilizers for?
BS EN 15559 on Nitric and ammoniacal nitrogen in fertilizers applies to:
- Manufacturers of fertilizers
- Dealers and importers of fertilizers
- Testing labs for fertilizers
- Quality assurance services
- Regulatory bodies
Why should you use BS EN 15559 - Nitric and ammoniacal nitrogen in fertilizers?
Ammoniacal Nitrogen is a nitrogen-rich material derived from ammonia. Before it can be taken by plant roots, it must first be transformed to nitrate nitrogen by soil microorganisms. A readily available form of artificial nitrogen fertiliser for plant roots is nitrate nitrogen. Due to quick response, nitric nitrogen is used as top dressings on growing crops.
BS EN 15559 provides users guidance on a method for the determination of nitrate and ammoniacal nitrogen with reduction using Arnd. BS EN 15559 also provides users with a step-by-step procedure for the method, enabling users to do the method correctly.
BS EN 15559 provides users guidance on principle, reagents, apparatus, sampling, sample preparation, procedure, calculation, expression of results, precision, and test report, enabling the accurate determination of nitric and ammoniacal nitrogen in fertilizers for stimulation in root growth and reduced acidification in agricultural applications.
With obedience and compliance of BS EN 15559, users can assess the content of nitric and ammoniacal nitrogen in fertilizers that reduce acidification, stimulate root growth and improve water use efficiency in plants for higher yields.
What’s changed since the last update?
BS EN 15559:2009 supersedes DD CEN/TS 15559:2007, which is now withdrawn.
