ISO 25705:2016
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)
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French, English
06-04-2016
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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
|
| Standards | Relationship |
| PNE-prEN ISO 25705 | Identical |
| 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 |
| 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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