PREN 16109 : DRAFT 2010
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
FERTILIZERS - DETERMINATION OF MICRO-NUTRIENT IONS COMPLEXED IN FERTILIZERS - IDENTIFICATION OF LIGNOSULFONATES
01-11-2011
12-01-2013
Foreword
1 Scope
2 Normative references
3 Method A: Determination of phenolic hydroxyl content
and 232,5 nm absorption for the identification of
lignosulfonates
4 Method B: Determination of organic sulfur content for
the identification of lignosulfonates
5 Expression of the results
6 Precision
7 Test report
Annex A (informative) - Statistical results of the
inter-laboratory test
Bibliography
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