GB/T 4702.1-2016
Chromium metal—Determination of chromium content—The ammonium ferrous sulfate titrimetric method
GB/T 32784-2016
Pig iron contenting nickel—Determination of chromium content—Ammonium per sulfate-ammonium ferrous sulfate titration method
GB/T 4699.2-2008
Ferrochromium and ferrosilicochromium - Determination of chromium content - The ammonium persulfate oxidation titrimetric method and potentiometric titration method
HG/T 2570-2009
HG/T 2678-2015
Basic chromium sulphate for industrial use
GB/T 24230-2009
Chromium ores and concentrates - Determination of chromium content - 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
HG/T 5560-2019
Chromium compound by-product sodium sulfate
YS/T 1330.2-2019
Methods for chemical analysis of cobalt-chromium ceramic alloy-Part 2: Determination of chromium content-Ammonium ferrous sulfate titration
GB/T 5195.18-2018
Fluorspar—Determination of barium sulfate content—Gravimetric method
YS/T 1489.2-2021
GB/T 24229-2009
Chromium ores and concentrates - Determination of aluminium content - Complexometric method
GB/T 4920-1985
Determination of sulphuric acidmist in tail gas in sulphuric acid concentration process--Barium chromate colorimetric method
DL 422.4-1991
NY/T 3425-2019
Water-soluble fertilizers-Determination of total Chromium and chromium (Ⅲ)and chromium (Ⅵ)contents
HG/T 5560~5561-2019
HB/Z 5107.10-2004
Methods for analysis of chemical oxidation xolution for magnesium alloy-Part 10:Continual determination of manganese sulfate and magnesium sulfate content in sodium bichromate and magnesium sulfate oxidation solution by EDTA volumetric method
HB/Z 5218.18-2004
Methods for chemical analysis of aluminium alloys-Part 18:Determination of chromium content by ammonium ferrous sulfate volumetric method
YB/T 6013.1-2022
MT/T 965-2005
Classification for chromium in coal