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Normas DIN – AENOR
DIN CEN/TS 15705:2009-06

DIN CEN/TS 15705:2009-06

Fertilizers - Determination of urea condensates using high-performance liquid chromatography (HPLC) - Isobutylidenediurea and crotonylidenediurea (method A) and methylen-urea oligomers (method B); German version CEN/TS 15705:2009

Engrais - Dosage des condensats d'urée par chromatographie liquide haute performance (HPLC) - Isobutylidène diurée et crotonylidène diurée (méthode A) et oligomères de méthylene-urée (méthode B) ; Version allemande CEN/TS 15705:2009

Düngemittel - Bestimmung von Harnstoffkondensaten mit Hochleistungs-Flüssigchromatographie (HPLC) - Isobutylidendiharnstoff und Crotonylidendiharnstoff (Verfahren A) und Methylenharnstoff-Oligomere (Verfahren B); Deutsche Fassung CEN/TS 15705:2009

Fecha Anulación:
2010-07 /Withdrawn
Equivalencias internacionales:

CEN/TS 15705 (2009-01)

Relación con otras normas DIN:

Reemplazada por: DIN EN 15705:2010-07

Resumen:
This document specifies two methods (method A and method B) for the determination of urea condensates in fertilizers using high-performance liquid chromatography (HPLC). Method A specifies the determination of isobutylidenediurea and crotonylidenediurea. Method B specifies the determination of methylen-urea oligomers. The document is applicable for all fertilizers which do not contain interfering organic compounds. Both methods have been validated in inter-laboratory tests on European level.
Keywords:
Calcium, Chemical analysis and testing, Condensates, Determination of content, Fertilizers, High performance liquid chromatography, HPLC, Magnesium, Methods, Oligomers, Sampling methods, Soil improvement, Soil improving materials, Specification (approval), Specimen preparation, Testing, Urea
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