SS-EN-15705 Inorganic fertilizers - Determination of methylen-urea oligomers using high-performance liquid chromatography (HPLC)

SS-EN-15705 - 2023 EDITION - CURRENT
Show Complete Document History

Document Center Inc. is an authorized dealer of SIS standards.
The following bibliographic material is provided to assist you with your purchasing decision:


This document specifies a method for the determination of methylen-urea (MU) oligomers in inorganic fertilizers using high-performance liquid chromatography (HPLC). The method is applicable to all fertilizers which do not contain interfering organic compounds. NOTE By the condensation of urea and formaldehyde, several oligomers are formed, such as methylen-diurea (MDU), dimethylen-triurea (DMTU), trimethylen-tetraurea (TMTU) and higher oligomers. The three molecules named here are the most soluble in water, while the higher compounds are insoluble in hot water, but their nitrogen is available for plants by microbiological decomposition. Also, urea is always a companion of MU-oligomers.

To find similar documents by classification:

65.080 (Fertilizers Including soil conditioners and culture medium)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.

ORDER

Price:

$144.75        


Want this as a site license?



Designation Name

SS-EN 15705:2023

Revision Level

2023 EDITION

Status

Current

Publication Date

Dec. 19, 2023

Language(s)

English

Page Count

24

International Equivalent

EN 15705:2023