Fertilizers -- Determination of urea condensates using highperformance liquid chromatography (HPLC) Isobutylidenediurea and crotonylidenediurea (method A) and methylen-urea oligomers (method B

رقم المستند: NL ISO 25705 : 2018
القطاع: NULL
TC: NL TC 134
ICS:
ISO 25705:2016 specifies methods for the determination of isobutylidene diurea (IBDU), Crotonylidene diurea (CDU) (method A) and methylene-urea oligomers (MU) (method B) in fertilizers using high-performance liquid chromatography (HPLC). The method is applicable to all fertilizers which do not contain interfering organic compounds.