HG/T 3540-2011
HG/T 4075-2008
Phosphorus trichloride for industrial use-Determination of phosphoric acid content-spectrometric method
QB/T 1036-1991
GB/T 9984.11-2004
Sodium tripolyphosphate for industrial use-Determination of I type content
GB/T 9984.2-2004
Sodium tripolyphosphate for industrial use-Determination of total phosphorus(v)oxide content-Quinoline phosphomolybdate gravimetric method
GB/T 9984.11-1988
Sodium tripolyphosphate for industrial use--Determination of I type content
GB/T 9984.6-2004
Sodium tripolyphosphate for industrial use—-Determination of iron content—-2,2'-bipyridyl spectrophotometric 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
KS M ISO 2997-2017(2022)
Phosphoric acid for industrial use-Determination of sulphate content-Method by reduction and titrimetry
KS M ISO 2997-2017
Phosphoric acid for industrial use-Determination of sulphate content-Method by reduction and titrimetry
GB/T 9984.6-1988
Determination of iron content in industrial sodium tripolyphosphate--2,2'-Bipyridyl spectrophotometric method
KS M ISO 3360-2017
Phosphoric acid and sodium phosphates for industrial use(including foodstuffs) — Determination of fluorine content — Alizarin complexone and lanthanum nitrate photometric method
KS M ISO 3360-2017(2022)
Phosphoric acid and sodium phosphates for industrial use(including foodstuffs) — Determination of fluorine content — Alizarin complexone and lanthanum nitrate photometric 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
HG/T 3534-2011
KS M ISO 3706-2017(2022)
Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
GB/T 9984.10-1988
Sodium tripolyphosphate for industrial use (including foodstuffs)--Determination of oxides of nitrogen content--3,4-Xylenol spectrophotometric 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
KS M ISO 3706-2017
Phosphoric acid for industrial use(including foodstuffs) — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method