SS-EN-16109 Fertilizers - Determination of complexed micro-nutrient ions in fertilizers - Identification of lignosulfonates

SS-EN-16109 - 2011 EDITION - CURRENT


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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].

To find similar documents by classification:

65.080 (Fertilizers Including soil conditioners and culture medium)

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Designation Name

SS-EN 16109:2011

Revision Level

2011 EDITION

Status

Current

Publication Date

Nov. 21, 2011

Language(s)

English

Page Count

28

International Equivalent

EN 16109:2011(IDT)