UNE 55558:1979 SURFACE ACTIVE AGENTS. SODIUM TRIPOLYPHOSPHATE AND SODIUM PYROPHOSPHATE FOR USE AS RAW-MATERIALS IN DETERGENT FORMULATIONS. DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT. QUINOLINE PHOSPHOMOLYBDATE GRAVIMETRIC METHOD
1979UNE 55558:1979 SURFACE ACTIVE AGENTS. SODIUM TRIPOLYPHOSPHATE AND SODIUM PYROPHOSPHATE FOR USE AS RAW-MATERIALS IN DETERGENT FORMULATIONS. DETERMINATION OF TOTAL PHOSPHORUS (V) OXIDE CONTENT. QUINOLINE PHOSPHOMOLYBDATE GRAVIMETRIC METHOD