GB/T 6730.8-2016(\u82f1\u6587\u7248)
铁矿石 亚铁含量的测定 重铬酸钾滴定法
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 24230-2009
Chromium ores and concentrates - Determination of chromium content - Titrimetric 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
HG/T 5560-2019
Chromium compound by-product sodium sulfate
GB/T 24229-2009
Chromium ores and concentrates - Determination of aluminium content - Complexometric method
NY/T 3425-2019
Water-soluble fertilizers-Determination of total Chromium and chromium (Ⅲ)and chromium (Ⅵ)contents
GB/T 38287-2019
Determination of hexavalent chromium in plastic materials
GB/T 24226-2009e
Chromium ores and concentrates—Determination of calcium contents—Flame atomic absorption spectrometric method
GB/T 24226-2009
Chromium ores and concentrates - Determination of calcium contents - Flame atomic absorption spectrometric method
GB/T 24990-2010
Paper,board and pulps - Determination of chromium
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 29660-2013
Determination of Chromium in cosmetics
GB/T 24227-2009
Chromium ores and concentrates - Determination of silicon content - Spectrophotometric method and gravimetric method
HG/T 5560~5561-2019
YS/T 1489.2-2021
MT/T 965-2005
Classification for chromium in coal