Reference number
ISO 9501:1991
ISO 9501:1991
© ISO 2025
ISO 9501:1991
Metallurgical-grade fluorspar — Determination of total sulfur content — Iodometric method after combustion
Edition 1
1991-01
1991-01
Withdrawn
Abstract
The method given is applicable to fluorspars having sulfur contents in the range 0,01 % (m/m) to 1,0 % (m/m). Describes in detail: principle, reagents and materials, apparatus, test sample, procedure, expression of results, and test report. Annex A gives values of total sulfur content of metallurgical grade fluorspars obtained in interlaboratory trials using the iodometric method after combustion specified in this standard.