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NBN EN 16109:2012
Fertilizers - Determination of complexed micro-nutrient ions in fertilizers - Identification of lignosulfonates
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Summary
This document specifies two complementary methods (method A and method B) that allow lignosulfonates to be indentified as soluble complexing agents in fertilizers.
NOTE Lignosulfonate, as a complexing agent, is a natural polymer produced as a by-product of the sulfite method for manufacturing paper from wood pulp in the paper industry. As a natural polymer, it presents a poorly defined and variable chemical structure. It is an intricate mixture of small- to moderate-sized polymeric compounds with sulfonate groups attached to the molecule, and diverse complexing capacity.
The methods are applicable to EC fertilizers covered by Regulation (EC) No 2003/2003 [1].
NOTE Lignosulfonate, as a complexing agent, is a natural polymer produced as a by-product of the sulfite method for manufacturing paper from wood pulp in the paper industry. As a natural polymer, it presents a poorly defined and variable chemical structure. It is an intricate mixture of small- to moderate-sized polymeric compounds with sulfonate groups attached to the molecule, and diverse complexing capacity.
The methods are applicable to EC fertilizers covered by Regulation (EC) No 2003/2003 [1].
Technical characteristics
| Publisher | Bureau de Normalisation Belge (NBN) |
| Publication Date | 01/27/2012 |
| Cancellation Date | 05/31/2012 |
| Page Count | 19 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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