BS 4427-10:1976
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Determination of total phosphorus (V) oxide content: quinoline phosphomolybdate gravimetric method
KS M ISO 3357-2017(2022)
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
KS M ISO 3357-2017
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
ISO 3357:1975
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
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
ISO 2998:1974
Sodium tripolyphosphate and sodium pyrophosphate for industrial use — Determination of orthophosphate content — Photometric method using the reduced molybdophosphate