NF X31-108

NF X31-108

January 2024
Standard Current

Soil quality - Determination of ammonium acetate extractable Ca++, Mg++, K+ and Na+ cations - Agitation method

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Main informations

Collections

National standards and national normative documents

Publication date

January 2024

Number of pages

10 p.

Reference

NF X31-108

ICS Codes

13.080.10   Chemical characteristics of soils

Classification index

X31-108

Print number

1
Replaced standards (1)
NF X31-108
September 2002
Standard Cancelled
Soil quality - Determination of ammonium acetate extractable Ca++, Mg++, K+ and Na+ cations - Agitation method

Le présent document fixe une méthode de détermination de cations extractibles (ou bases échangeables) du sol, extraits par agitation de la prise d'essai en présence d'une solution d'acétate d'ammonium. Les cations sont ensuite dosés par spectrophotométrie d'émission de flamme ou par spectrométrie d'absorption atomique.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Principe
  • 4 Réactifs
  • 5 Appareillage
  • 6 Préparation de l'échantillon
  • 7 Mode opératoire
  • 8 Expression des résultats
  • 9 Rapport d'essai
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