ISO 4284:1988

Acid-grade and ceramic-grade fluorspar — Determination of sulfide content — Iodometric method

Spaths fluor pour la fabrication de l'acide fluorhydrique et spaths fluor utilisables dans l'industrie céramique — Dosage des sulfures — Méthode iodométrique

Fecha Anulación:

1988-11-24 / Withdrawn

ICS:

73.080 - Non-metalliferous minerals. Including mica, fluorspar, etc.

Committee:

ISO/TC 175 - Fluorspar

Relación con otras normas ISO:

Anula a: ISO 4284:1978

Es anulada por: ISO 4284:1993

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