Solid mineral fuels - Determination of total fluorine by oxygen bomb combustion - Fluoride ion specific electrode method

Le présent document décrit une méthode de dosage du fluor total contenu dans les combustibles minéraux solides.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2002

Number of pages

9 p.

Reference

NF M03-064

ICS Codes

73.040 Coals

75.160.10 Solid fuels

Classification index

M03-064

Print number

1 - 28/11/2002

Sumary

Solid mineral fuels - Determination of total fluorine by oxygen bomb combustion - Fluoride ion specific electrode method

Le présent document décrit une méthode de dosage du fluor total contenu dans les combustibles minéraux solides.

Table of contents

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1 Domaine d'application
4
2 Références normatives
4
3 Principe
4
4 Appareillage
4
4.1 Bombe à oxygène
4
4.2 Bain de refroidissement
4
4.3 Creuset à combustion
4
4.4 Fil de mise à feu
5
4.5 Circuit de mise à feu
5
4.6 Balance
5
4.7 Millivoltmètre
5
4.8 Électrodes
5
5 Réactifs
5
5.1 Pureté des réactifs
5
5.2 Pureté de l'eau
5
5.3 Solution tampon
5
5.4 Solution étalon de fluorures (1 000 mg/kg)
5
5.5 Solution étalon de fluorures (100 mg/kg)
6
5.6 Oxygène
6
5.7 Solution étalon d'hydroxyde de sodium (1,0 N)
6
5.8 Solution d'acide sulfurique (5,0 N)
6
5.9 Solution d'acide sulfurique 0,5 N
6
6 Précautions
6
7 Préparation de l'échantillon pour essai
7
8 Mode opératoire
7
8.1 Prise d'essai
7
8.2 Analyse avec électrode spécifique des ions fluorures
7
8.3 Calculs
8
9 Expression des résultats
9
9.1 Répétabilité
9
9.2 Reproductibilité
9
9.3 Biais
9

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