NF ISO 22146

NF ISO 22146

February 2019
Standard Current

Carbonate liming materials - Determination of reactivity - Automatic titration method with citric acid

This document specifies a method for determining the reactivity of calcium carbonate and calcium magnesium carbonate liming materials. It assesses the speed and effectiveness of their neutralising potential by automatic titration with citric acid. This method is applicable only to liming materials with a maximum particle size of 6,3 mm determined in accordance with ISO 20977. NOTE For marble dolomite (BET procedure as defined in ISO 9277 below 500 m2/kg), see EN 14984.

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Main informations

Collections

National standards and national normative documents

Publication date

February 2019

Number of pages

19 p.

Reference

NF ISO 22146

ICS Codes

65.080   Fertilizers

Classification index

U44-188

Print number

1

International kinship

ISO 22146:2018
Sumary
Carbonate liming materials - Determination of reactivity - Automatic titration method with citric acid

This document specifies a method for determining the reactivity of calcium carbonate and calcium magnesium carbonate liming materials. It assesses the speed and effectiveness of their neutralising potential by automatic titration with citric acid.

This method is applicable only to liming materials with a maximum particle size of 6,3 mm determined in accordance with ISO 20977.

NOTE For marble dolomite (BET procedure as defined in ISO 9277 below 500 m2/kg), see EN 14984.

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Principe
  • 5 Appareillage
  • 6 Réactifs
  • 7 Échantillonnage et préparation des échantillons
  • 8 Mode opératoire
  • 9 Calcul et expression des résultats
  • 10 Fidélité
  • 11 Rapport d'essai
  • Annexe A Préparation de la prise d'essai des amendements minéraux basiques dont la taille de particules est supérieure à 1 mm
  • Annexe B Configuration de l'appareillage d'essai
  • Bibliographie
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