Acid-grade fluorspar — Determination of sulphide content — Iodometric method
Spaths fluor pour la fabrication de l'acide fluorhydrique — Dosage des sulfures — Méthode iodométrique
73.080 - Non-metalliferous minerals. Including mica, fluorspar, etc.
Es anulada por: ISO 4284:1993
Es anulada por: ISO 4284:1988
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