UNE 55625:1982 SURFACE ACTIVE AGENTS. SODIUM AND POTASSIUM SILICATES TO BE USED AS RAW MATERIALS IN DETERGENT FORMULATIONS. DETERMINATION OF SILICA CONTENT. GRAVIMETRIC METHOD BY INSOLUBILIZATION
1982UNE 55625:1982 SURFACE ACTIVE AGENTS. SODIUM AND POTASSIUM SILICATES TO BE USED AS RAW MATERIALS IN DETERGENT FORMULATIONS. DETERMINATION OF SILICA CONTENT. GRAVIMETRIC METHOD BY INSOLUBILIZATION