NEN NPR CEN/TR 15106 : 2005
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The latest, up-to-date edition.
FERTILIZERS - DETERMINATION OF CHELATING AGENTS EDDHA AND EDDHMA BY ION PAIR CHROMATOGRAPHY - COMPARISON OF NON-STANDARDIZED LUCENA METHOD WITH EN 13368-2:2001
01-12-2013
Covers the results from two ring tests (A and B) to compare the repeatability and reproducibility of the standardized method for the determination of EDDHA and EDDHMA by ion chromatography with a non-standardized alternative method using ion-pair chromatography ("Lucena-method"). It also provides the results of a univariate multifactorial ANOVA test and F-test for ring test A and F-test for ring test B to verify the significance of the reproducibility and the repeatability data.
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