CEN/TS 17765:2022

Organic and organo-mineral fertilizers - Determination of the biuret content by high-performance liquid chromatography (HPLC) CEN/TS 17765:2022

Publication date:   Aug 17, 2022

General information

60.60 Standard published   Apr 6, 2022

CEN

CEN/TC 260 Fertilizers and liming materials

Technical Specification

65.080   Fertilizers

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Scope

This document is applicable to fertilizing products, which are classified as PFC 1(A) and PFC 1(B) or the PFC 1(A) and PFC 1(B) component in PFC 7 of Regulation (EU) 2019/1009 [4]. However, the present method was not validated for blends.
This document specifies a method for the determination of the biuret content by high-performance liquid chromatography (HPLC) with UV detector. The method is applicable to organic and organo-mineral fertilizers containing urea.
Nowadays, there is a method standardized as EN 15479 that allows the determination of biuret in urea by spectrophotometric detection. Organic and organo-mineral fertilizers contain organic matter and other compounds apart from urea that would interfere in a spectrophotometric method. HPLC allows an accurate determination of biuret by separating it from possible interfering compounds [2] [3].

Related legislation

Legislation related to this standard

2019/1009

Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019 laying down rules on the making available on the market of EU fertilising products and amending Regulations (EC) No 1069/2009 and (EC) No 1107/2009 and repealing Regulation (EC) No 2003/2003 (Text with EEA relevance)

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PUBLISHED
CEN/TS 17765:2022
60.60 Standard published
Apr 6, 2022