Abstract / scope
Specifies a test method. Describes the principle, the reagents, the apparatus, the test sample, the test procedure, the expression of results, and the contents of the test report.
ISO 9503:1991Withdrawn
Metallurgical-grade fluorspar — Determination of available fluorine content — Modified Willard-Winter method
Spaths fluor utilisables dans l'industrie métallurgique — Dosage du fluor utilisable — Méthode de Willard-Winter modifiée