YB/T 4908.1-2021
Vanadium-aluminum alloy-Determination of vanadium content-Ammonium persulfate oxidation-ammonium ferrous sulfate titrimetric method
YB/T 4218-2010
Vanadium pentoxide-Determination of vanadium pentoxide content-The ammonium persulfate oxidation titrimetric method
GB/T 42513.1-2023
Methods for chemical analysis of nickel alloys—Part 1: Determination of chromium content—Potentiometric titration method with ammonium iron(II) sulfate
SN/T 3320.2-2012
YB/T 4566.3-2016
Ferrovanadium nitride-Determination of vanadium content-Ammonium ferrous sulfate titrimetric method
GB/T 24583.1-2019(\u82f1\u6587\u7248)
钒氮合金 钒含量的测定 硫酸亚铁铵滴定法
HB 5220.11-2008
Methods for chemical analysis of superalloys-Part 11:Determination of manganese content by ammonium nitrate oxidation-ammonium ferrous sulfate volumetric method
GB/T 223.13-2000
Methods for chemical analysis of iron,steel and alloy--The ammonium ferrous sulfate titrationmethod for the determination of vanadium content
GB/T 4699.2-2008
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method
YB/T 547.1-2014
Vanadium slag - Determination of vanadium pentoxide content - Ammonium ferrous sulfate titrimetric method
DB34/T 2580-2015
GB/T 22662.3-2008
Chemical analysis methods of potassium fluotitanate - Part 3: Determination of potassium fluotitanate content - By ammonium iron sulphate dodecahydrate titration volumetric method
YB/T 159.1-2015
Titanium concentrate (rock minerals) - Determination of titanium dioxide content - The ferric ammonium sulfate titrimetric method
GB/T 6276.3-2010
Determination of ammonium hydrogen carbonate for industrial use—Part 3:Sulphide content—Visible turbidimetric method
YS/T 424.1-2022
YB/T 5328-2009
HB 5220.16-2008
Methods for chemical analysis of superalloys-Part 16:Determination of vanadium content by ammonium ferrous sulfate volumetric method
YS/T 1512.5-2021
Methods for chemical analysis of copper smelting soot-Part 5: Determination of arsenic content-Ferrous ammonium sulfate titration
HB 5220.15-2008
Methods for chemical analysis of superalloys-Part 15:Determination of chromium content by ammonium persulfate oxidation-ammonium iron (Ⅱ) volumetric method
GB/T 6276.3-1986
Ammonium hydrogen carbonate for industrial use—Determination sulphide content—Visible turbidimetric method