Fertilizer and soil conditioners Fertilizer grade urea General requirements

Available format(s)

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

Language(s)

English

Published date

07-07-2016

Publisher

International Organization for Standardization

ISO 18642:2016 specifies the general requirements regarding testing methods, sampling and preparation of test sample, marking and labelling, package, transport, and storage of fertilizer grade urea.

It is applicable to urea in solid form, e.g. granular, prilled, or pastilled, which is made by the reaction of ammonia with carbon dioxide. Urea can be classified by its intended use, industrial and/or agricultural. It is mainly used as fertilizer in the field of agriculture. It is only applicable to fertilizer grade urea in the field of agriculture.

DevelopmentNote	Supersedes ISO/DIS 18642. (07/2016)
DocumentType	Standard
Pages	5
PublisherName	International Organization for Standardization
Status	Current

Standards	Relationship
BS ISO 18642:2016	Identical

ISO 8157:2015	Fertilizers and soil conditioners — Vocabulary
EN 13466-1:2001	Fertilizers - Determination of water content (Karl Fischer methods) - Part 1: Methanol as extracting medium
ISO 18643:2016	Fertilizers and soil conditioners Determination of biuret content of urea-based fertilizers HPLC method
EN 15479:2009	Fertilizers - Spectrophotometric determination of biuret in urea
EN 15478:2009	Fertilizers - Determination of total nitrogen in urea
ISO 8397:1988	Solid fertilizers and soil conditioners — Test sieving
ISO 7410:1983	Fertilizers and soil conditioners — Final samples — Practical arrangements
ISO 8633:1992	Solid fertilizers — Simple sampling method for small lots
ISO 5315:1984	Fertilizers — Determination of total nitrogen content — Titrimetric method after distillation
ISO 7409:1984	Fertilizers Marking Presentation and declarations
ISO 7742:1988	Solid fertilizers — Reduction of samples