ASTM E463

Silica in Fluorspar by Silico-Molybdate Visible Spectrophotometry

Applicability: ASTM E463 is used exclusively to analyze fluorspar (fluorite), which is an industrial mineral heavily utilized as a flux in steelmaking, and in the production of hydrofluoric acid and fiberglass.

Purpose: The purpose of ASTM E463 is to provide a standardized, referee laboratory procedure for measuring the mass percentage of silica impurities in fluorspar (calcium fluoride)