ISO 25475:2016
$19.50
Engrais — Détermination de l’azote ammoniacal
| Published By | Publication Date | Number of Pages |
| ISO | 2016-04 | 20 |
La présente Norme internationale spécifie une méthode permettant de déterminer la teneur en azote ammoniacal dans les engrais. La méthode est applicable à tous les engrais azotés, y compris les engrais composés, dans lesquels l'azote se trouve exclusivement sous forme de sels d'ammonium ou de sels d'ammonium associés à des nitrates.
La présente Norme internationale ne s'applique pas aux engrais contenant de l'urée, de la cyanamide ou d'autres composés organiques azotés.
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