UNI EN 16109 : 2012
Current
The latest, up-to-date edition.
FERTILIZERS - DETERMINATION OF COMPLEXED MICRO-NUTRIENT IONS IN FERTILIZERS - IDENTIFICATION OF LIGNOSULFONATES
19-01-2012
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Sampling and sample preparation
5 Method A: Determination of phenolic hydroxyl content
and 232,5 nm absorption for the identification of
lignosulfonates
6 Method B: Determination of organic sulfur content
for the identification of lignosulfonates
7 Expression of the results
8 Precision
9 Test report
Annex A (informative) - Statistical results of the
inter-laboratory test
Bibliography
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