NF X31-108
NF X31-108

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.

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Main informations

Collections

National standards and national normative documents

Publication date

September 2002

Number of pages

8 p.

Reference

NF X31-108

ICS Codes

13.080.10   Chemical characteristics of soils

Classification index

X31-108

Print number

1 - août 2002
Sumary
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.
Replaced standards (1)
NF X31-108
NF X31-108
November 1992
Standard Cancelled
Soil quality. Determination of ammonium acetate extractable ca++, mg++,K+, na+. Agitation method.

La présente norme 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.

Standard replaced by (1)
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

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