What is BS EN 13368-1 - EDTA, HEEDTA and DTPA in fertilizers about?
BS EN 13368-1 is a standard that serves technical specifications for determining EDTA, HEEDTA and DTPA in fertilizers, enabling the uptake of metals from soil for plant nutrition.
BS EN 13368-1 specifies a method for the chromatographic determination of the total amount of each of the individual chelating agents EDTA, HEEDTA, and DTPA in fertilizers containing one or more of these substances.
BS EN 13368-1 method allows the identification and the determination of the total water soluble fraction of each of these chelating agents. It does not allow to distinguish between the free form and the metal bound form of the chelating agents.
BS EN 13368-1 method applies to fertilizers containing chelates of one or more of the following micro-nutrients: cobalt, copper, iron, manganese, zinc and with a mass fraction of at least 0.1 %.
Who is BS EN 13368-1 - EDTA, HEEDTA and DTPA in fertilizers for?
BS EN 13368-1 on EDTA, HEEDTA and DTPA 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 13368-1 - EDTA, HEEDTA and DTPA in fertilizers?
Chelated micronutrients are fertilisers in which a larger molecule called chelator surrounds the micronutrient ion (for example, Fe or iron). Natural or synthesised substances can be used as ligands. A chelated micronutrient is formed when these chemicals are coupled with a micronutrient.
BS EN 13368-1 provides users guidance on the ion chromatography method for determining EDTA, HEEDTA and DTPA in fertilizers. BS EN 13368-1 also provides users with a step-by-step procedure for the method, enabling users to do the method correctly.
BS EN 13368-1 provides users guidance on principle, interferences, reagents, apparatus, sampling, sample preparation, procedure, expression of results, precision, and test report, enabling the accurate detection of chelating agents that improve the bioavailability of micronutrients such as Fe, Cu, Mn, and Zn.
With obedience and compliance of BS EN 13368-1, users can develop and assess fertilizers for determining EDTA, HEEDTA and DTPA, that facilitate optimum plant nutrition by improving the bioavailability of micronutrients for plant growth and nutrition.
What’s changed since the last update?
BS EN 13368-1:2014 supersedes BS EN 13368-1:2001, which is now withdrawn.
Changes in BS EN 13368-1:2014 include –
- Editorial and bibliography revisions
- The title of the European Standard revised
- Referenced European Standards on vocabulary added to Clause 2
- Clause 3 Terms and definitions added
- The sampling method is not part of the standard, informative reference to EN 1482-1 added
- Annex A: complete names of chelating agents technical revised
