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BSI PD CEN/TS 17784-1:2022

Organo-mineral fertilizers. Identification of complexing agents. -- Method using UV-Vis spectrophotometry and gravimetry
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BSI PD CEN/TS 17784-1:2022

Organo-mineral fertilizers. Identification of complexing agents. -- Method using UV-Vis spectrophotometry and gravimetry

PUBLISH DATE 2022
PAGES 18
BSI PD CEN/TS 17784-1:2022

This document specifies two methods required for the identification of lignosulfonate by UV-Vis spectrophotometry (method A) and gravimetry (method B) in organo-mineral 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.

SDO BSI: British Standards Institution
Document Number CEN/TS 17784-1
Publication Date July 20, 2022
Language en - English
Page Count 18
Revision Level
Supercedes
Committee CII/37
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