UNE 55608:1981 SURFACE ACTIVE AGENTS. SODIUM HYDROXIDE FOR USE AS RAW-MATERIAL IN DETERGENT FORMULATIONS. DETERMINATION OF SILICA CONTENT. GRAVIMETRIC METHOD BY PRECIPITATION OF QUINOLINE MOLYBDOSILICATE
1981UNE 55608:1981 SURFACE ACTIVE AGENTS. SODIUM HYDROXIDE FOR USE AS RAW-MATERIAL IN DETERGENT FORMULATIONS. DETERMINATION OF SILICA CONTENT. GRAVIMETRIC METHOD BY PRECIPITATION OF QUINOLINE MOLYBDOSILICATE