GB/T 664-2011
Chemical reagent - Iron(Ⅱ)sulfate heptahydrate
GB 34465-2017
Feed additive—Ferrous sulphate
GB/T 10531-2016
Water treatment chemicals—Ferrous sulphate
GB/T 661-2011
Chemical reagent - Ammonium iron(II) sulfate hexahydrate
HG/T 2935-2006
Feed grade ferrous sulfate
HG 2935-2000
Feed grade ferrous sulfate
GB/T 4702.1-2016
Chromium metal—Determination of chromium content—The ammonium ferrous sulfate titrimetric method
GB/T 24583.1-2019
Vanadium-nitrogen—Determination of vanadium content—Ammonium ferrous sulfate titration method
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 6730.32-2013
Iron ores - Determination of vanadium content - The ammonium ferrous sulfate titrimetric method
GB 29211-2012
GB/T 664-1993
Chemical reagent—Iron(Ⅱ) sulfate heptahydrate
DB14/T 1364-2017
GB/T 8704.5-2020
Ferrovanadium—Determination of vanadium content—The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method
GB/T 139-2008
Standard method for using the ferrous sulfat (fricke) dosimeter to measure absorbed dose in water
GB 10531-2006
Water treatment chemicals—Ferrous sulphate
GB/T 15555.8-1995
Solid waste--Determination of total chromium--Titrimetric method
GB/T 1506-2016
Manganese ores—Determination of manganese content—Potentiometric method and ammonium iron(Ⅱ) sulphate titrimetric method
GB/T 15555.7-1995
Solid waste--Determination ofchromium(VI)--Titrimetric method
YB/T 4566.3-2016
Ferrovanadium nitride-Determination of vanadium content-Ammonium ferrous sulfate titrimetric method