XP CEN/TS 15750
XP CEN/TS 15750

XP CEN/TS 15750

December 2008
Standard Cancelled

Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

Le présent document spécifie deux méthodes différentes de dosage de l'azote total dans les engrais : une méthode titrimétrique après distillation et une méthode de réduction des nitrates par le fer et le chlorure stanneux.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2008

Number of pages

18 p.

Reference

XP CEN/TS 15750

ICS Codes

65.080   Fertilizers

Classification index

U42-503

Print number

1 - janvier 2009

European kinship

CEN/TS 15750:2008
Sumary
Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

Le présent document spécifie deux méthodes différentes de dosage de l'azote total dans les engrais : une méthode titrimétrique après distillation et une méthode de réduction des nitrates par le fer et le chlorure stanneux.
Standard replaced by (1)
NF EN 15750
NF EN 15750
January 2010
Standard Current
Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

Le présent document spécifie deux méthodes différentes (les méthodes A et B) de dosage de l'azote total dans les engrais. La méthode A spécifie la méthode titrimétrique après distillation selon l'ISO 5315:1984. La méthode B spécifie une méthode de réduction des nitrates par le fer et le chlorure stanneux.

Table of contents
  • Avant-propos
    3
  • 1 Domaine d'application
    4
  • 2 Références normatives
    4
  • 3 Termes et définitions
    4
  • 4 Principe
    4
  • 5 Échantillonnage et préparation des échantillons
    5
  • 6 Méthode A
    5
  • 7 Méthode B
    10
  • 8 Fidélité des méthodes A et B
    13
  • 9 Rapport d'essai
    14
  • Annexe A (informative) Résultats statistiques des essais interlaboratoires
    15
  • Bibliographie
    16
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