ISO 320:1981Published

Manganese ores — Determination of sulphur content — Barium sulphate gravimetric methods and sulphur dioxide titrimetric method after combustion

Minerais de manganèse — Dosage du soufre — Méthodes gravimétriques à l'état de sulfate de baryum et méthode titrimétrique à l'état de dioxyde de soufre après calcination

Abstract / scope

Describes three methods: methods I and II are gravimetric methods which are applicable to maganese ores having sulphur contents greater than 0.01 % (m/m), and method III is a titrimetric method. Should be read in conjunction with ISO 4297. Specifies principle, reagents, apparatus, sample, procedure and expression of results. A figure illustrates the apparatus for determination of sulphur content in accordance with method III.

Life cycle

Replaced by

ISO/CD 320Deleted (project abandoned)Manganese ores and concentrates — Determination of sulfur content — Titrimetric, gravimetric and coulometric titration methodsInternational Standard · ISO/TC 65