ISO 11724:2019

INTERNATIONAL ISO
STANDARD 11724
Third edition
2019-06
Solid mineral fuels — Determination of
total fluorine in coal, coke and fly ash
Combustibles minéraux solides — Détermination de la teneur totale
en fluor dans le charbon, le coke et les cendres
Reference number
ISO 11724:2019(E)
©
ISO 2019

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ISO 11724:2019(E)

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ii © ISO 2019 – All rights reserved

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ISO 11724:2019(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 2
7 Sample . 5
7.1 Coal and coke . 5
7.2 Fly ash . 5
8 Procedure. 5
8.1 Number of determinations . 5
8.2 Preparation of test sample . 5
8.3 Blank tests . 5
8.4 Pyrohydrolysis procedure . 5
8.4.1 Apparatus conditioning . 5
8.4.2 Pyrohydrolysis . 5
8.4.3 Pyrohydrolysate processing . 6
8.5 Solution measurement .
...