GB/T 9984.2-2004
Sodium tripolyphosphate for industrial use-Determination of total phosphorus(v)oxide content-Quinoline phosphomolybdate gravimetric method
GB/T 9984.2-1988
Sodium tripolyphosphats for industrial use--Determination of total phosphorus pentoxide content--Quinoline phosphomolybdate gravimetric method
GB/T 9984.10-2004
Sodium tripolyphosphate for industrial use (including foodstuffs)—Determination of oxides of nitrogen content-3,4-Xylenol spectrophotometric method
GB/T 9984.10-1988
Sodium tripolyphosphate for industrial use (including foodstuffs)--Determination of oxides of nitrogen content--3,4-Xylenol spectrophotometric method
BS 4427-12:1979
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Condensed phosphates for industrial use (including foodstuffs). Determination of arsenic content. Silver diethyldithiocarbamate photometric method
BS 4427-15:1982
Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use-Condensed phosphates for industrial use (including foodstuffs) - determination of oxides of nitrogen content - 3,4-xylenol spectrophotometric method
ISO 3000:1974
Sodium tripolyphosphate for industrial use — Estimation of tripolyphophate content — Tris(ethylenediamine) cobalt (III) chloride gravimetric method