NF X31-120

Soil quality - Determination of copper, iron, manganese and zinc contents - Extraction by means of ammonium acetate in presence of EDTA

Le présent document décrit une méthode de détermination du cuivre, du fer, du manganèse et du zinc contenus dans un échantillon de sol, par extraction par l'acétate d'ammonium en présence d'EDTA.

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!

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