GB/T 641-2011
Chemical reagent - Potassium peroxydisulfate
KS D 1673-5-2023
Iron and steel — ICP atomic emission spectrometric method — Part 5: Determination of niobium content — Dissolution in phosphoric and sulfuric acids or Dissolution in acids and fusion with potassium disulfate
GB/T 641-1994
Chemical reagent—Potassium peroxydisulfate
SN/T 3809-2014
Determination of potassium content in potassium chloride and potassium sulphate - X-ray fluorescence spectrometry
KS M 8050-2018(2023)
Potassium peroxodisulfate
T/CRIAC 0005-2019
HB/Z 5107.4-2004
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 4:Determination of aluminum potassium sulfate content in aluminum potassium sulfate oxidation solution by EDTA volumetric method
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
YS/T 424.1-2022
DZ/T 0454.1-2023
KS D 1673-2-2023
Iron and steel — ICP atomic emission spectrometric method — Part 2: Determination of various elements — Decomposition with acids and fusion with potassium disulfate
YB/T 159.1-1999
Methods for chemical analysis of titanium concentrate(rock minerals)—The ferric ammonium sulfate volumetric method for the determination of titanium dioxide content
ISO 2487:1973
Potassium sulphate for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
ISO 2486:1973
Potassium sulphate for industrial use — Determination of potassium content — Sodium tetraphenylborate volumetric method
ISO 2488:1973
Potassium sulphate for industrial use — Determination of chloride content — Mercurimetric method
ISO 2485:1973
Potassium sulphate for industrial use — Determination of potassium content — Gravimetric method as potassium tetraphenylborate
ISO 2484:1973
Potassium sulphate for industrial use — Determination of potassium content — Flame emission spectrophotometric method
ISO 3239:1975
Sodium sulphate for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method
ISO 3201:1975
Sodium and potassium silicates for industrial use — Determination of iron content — 1,10- Phenanthroline photometric method