NF EN 15476

NF EN 15476

April 2009
Standard Current

Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda

Le présent document spécifie une méthode pour le dosage de l'azote nitrique et ammoniacal, avec réduction, à l'aide de l'alliage Devarda et s'applique à tous les engrais azotés.

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Main informations

Collections

National standards and national normative documents

Publication date

April 2009

Number of pages

14 p.

Reference

NF EN 15476

ICS Codes

65.080   Fertilizers

Classification index

U42-142

Print number

1 - 01/04/2009

European kinship

EN 15476:2009
Sumary
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda

Le présent document spécifie une méthode pour le dosage de l'azote nitrique et ammoniacal, avec réduction, à l'aide de l'alliage Devarda et s'applique à tous les engrais azotés.
Table of contents
  • Avant-propos
    3
  • 1 Domaine d'application
    4
  • 2 Références normatives
    4
  • 3 Termes et définitions
    4
  • 4 Principe
    4
  • 5 Réactifs
    4
  • 6 Appareillage
    5
  • 7 Échantillonnage et préparation de l'échantillon
    7
  • 8 Mode opératoire
    7
  • 9 Calcul et expression du résultat
    9
  • 10 Fidélité
    10
  • 11 Rapport d'essai
    10
  • Annexe A (informative) Résultats des essais interlaboratoires
    11
  • Bibliographie
    12
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