NF X31-161
NF X31-161

NF X31-161

January 2024
Standard Current

Soil quality - Determination of phosphorus soluble in a 0,1 mol.l -1 ammonium oxalate solution - Joret-Hébert method

Main informations

Collections

National standards and national normative documents

Publication date

January 2024

Number of pages

11 p.

Reference

NF X31-161

ICS Codes

13.080.10   Chemical characteristics of soils

Print number

1
Replaced standards (1)
NF X31-161
NF X31-161
December 1999
Standard Cancelled
Soil quality - Determination of phosphorus soluble in a 0,1 mol.l -1 ammonium oxalate solution - Joret-Hébert method

Le présent document décrit une méthode de détermination du phosphore soluble dans une solution d'oxalate d'ammonium à 0,1 mo.l-1 d'un échantillon de terre préparé pour essai. Il est applicable à tous les types de sols.

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!


What is the Redline format?
New: UPSELL service
Need to identify, monitor and decipher standards?