DD CEN/TS 15705:2009 Fertilizers. Determination of urea condensates using high-performance liquid chromotography (HPLC). Isobutylidenediurea and crotonylidenediurea (method A) and methylen-urea oligomers (method B)
DD CEN/TS 15705 specifies methods for the determination of isobutylidenediurea (IBDU), crotonylidenediurea (CDU) (method A) and methylene-urea oligomers (MU) (method B) in fertilizers using high-performance liquid chromatography (HPLC).
The method specified in DD CEN/TS 15705 is applicable for all fertilizers which do not contain interfering organic compounds.
Contents of DD CEN/TS 15705:
• Foreword
• Scope
• Normative references
• Terms and definitions
• Sampling and sample preparation
• Method A: Determination of CDU and IBDU
• Method B: Determination of methylen-urea oligomers (MU)
• Precision method A and method B
• Test report
• Results of the inter-laboratory tests
• Chromatogram and calibration curves method A
• Chromatogram and calibration curves method B
• Bibliography
CEN/TS 15705:2009