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Standard

NS-EN 16109:2011

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Abstract

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].

Document information

  • Standard from SN
  • Published:
  • Edition: 2011-11
  • Version: 1
  • Document type: NAT
  • ICS 65.080
  • National Committee SN/K 133

Legal references

EU law: 2003/2003

Product Relations

  • Adopted from: EN 16109:2011 , 0