Fertilizers - Determination of 1H,1,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)

Le présent document spécifie une méthode de détermination de la teneur en triazole (TZ) dans l'urée et dans les engrais contenant de l'urée en présence de dicyandiamide ou de méthylpyrazole par chromatographie liquide à haute performance (HPLC).

View the extract New: UPSELL service

Main informations

Collections

National standards and national normative documents

Publication date

June 2011

Number of pages

11 p.

Reference

NF EN 16024

ICS Codes

65.080 Fertilizers

Classification index

U42-162

Print number

1 - mai 2011

European kinship

EN 16024:2011

Sumary

Fertilizers - Determination of 1H,1,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)

Le présent document spécifie une méthode de détermination de la teneur en triazole (TZ) dans l'urée et dans les engrais contenant de l'urée en présence de dicyandiamide ou de méthylpyrazole par chromatographie liquide à haute performance (HPLC).

Table of contents

Avant-propos
3
1 Domaine d'application
3
2 Références normatives
3
3 Termes et définitions
3
4 Principe
4
5 Réactifs
4
6 Appareillage
4
7 Échantillonnage et préparation de l'échantillon
4
8 Mode opératoire
5
8.1 Préparation de la solution d'essai
5
8.2 Préparation des solutions de calibration
5
8.3 Conditions HPLC
5
8.4 Détermination par HPLC
6
9 Calcul et expression des résultats
6
9.1 Calcul
6
9.2 Expression des résultats
7
10 Fidélité
7
10.1 Essai interlaboratoires
7
10.2 Répétabilité
7
10.3 Reproductibilité
7
11 Rapport d'essai
7
Annexe A (informative) Résultats statistiques de l'essai interlaboratoires
8
Bibliographie
9

ZOOM ON ... the Requirements department

To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:

mandatory clauses to satisfy,
non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document "ISO/IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents" as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

New: UPSELL service

The UPSELL service allows you to easily update one of your standards.
With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.

Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ