NF X31-160

NF X31-160

February 2024
Standard Current

Soil quality - Determination of phosphorus soluble in a 20 g.l -1 monohydric citric acid solution - Dyer method

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Main informations

Collections

National standards and national normative documents

Publication date

February 2024

Number of pages

10 p.

Reference

NF X31-160

ICS Codes

13.080.10   Chemical characteristics of soils

Classification index

X31-160

Print number

1
Replaced standards (1)
NF X31-160
December 1999
Standard Cancelled
Soil quality - Determination of phosphorus soluble in a 20 g.l -1 monohydric citric acid solution - Dyer method

Le présent document décrit une méthode de détermination du phosphore soluble dans une solution d'acide citrique à 20 g.l-1 d'un échantillon de terre préparé pour essai. Il ne s'applique qu'aux sols contenant moins de 20 g/kg de calcaire total.

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Principe
  • 4 Appareillage
  • 5 Réactifs
  • 6 Mode opératoire
  • 7 Expression des résultats
  • 8 Répétabilité et reproductibilité
  • 9 Rapport d'essai
  • Bibliographie
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