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ISO 25705:2016

Current
Current

The latest, up-to-date edition.

Fertilizers Determination of urea condensates using high-performance liquid chromatography (HPLC) Isobutylidenediurea and crotonylidenediurea (method A) and methylen-urea oligomers (method B)
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

French, English

Published date

04-06-2016

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.

DevelopmentNote
Supersedes ISO/DIS 25705. (04/2016)
DocumentType
Standard
Pages
18
PublisherName
International Organization for Standardization
Status
Current

ISO 19670:2017 Fertilizers and soil conditioners Solid urea aldehyde slow release fertilizer General requirements
BS ISO 19670:2017 Fertilizers and soil conditioners. Solid urea aldehyde slow release fertilizer. General requirements

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
EN 12944-2:1999/AC:2000 FERTILIZERS AND LIMING MATERIALS AND SOIL IMPROVERS - VOCABULARY - PART 2: TERMS RELATING TO FERTILIZERS
EN 12944-1:1999/AC:2000 FERTILIZERS AND LIMING MATERIALS AND SOIL IMPROVERS - VOCABULARY - PART 1: GENERAL TERMS
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods

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