HG/T 2775-2010
Chromium oxide for industrial use
YB/T 6037-2022
GB/T 38216.1-2019
Steel slag—Determination content of chromic oxide—Diphenyl carbazide spectrophotometry method
SN/T 4306-2015
Determination of chromium oxide content in chromeore - Automatic potentiometric titration with microwave digestion method
GB/T 6609.8-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of chromium sesquioxide content--Diphenyl carbazide photometric method
DB23/T 3328-2022
HB/Z 339.1-1999
KS M 1308-2019(2024)
Dichromium trioxide
HG/T 2775-1996
GB/T 8152.3-2006
Methods for chemical analysis of lead concentrates―Determination of aluminium(III)oxide content―Chromazurol S spectrophotometric method
GB/T 16019-1995
Workplace air—Determination of chromium trioxide, chromates and dichromates—Diphenylcarbazide spectrophotometric method
YB/T 191.2-2001
Methods for chemical analysis of chromium ores—Titrimetric method for the determination of oxidation chromium content
GB/T 1819.11-2017
Methods for chemical analysis of tin concentrates—Part 11:Determination of aluminium oxide content—Chromazuzal S spectrophotometric method
HB/Z 5109.9-2001
SN/T 3322.2-2015
Chemical analysis of titanium concentrates - Part 2:Determination of vanadium pentaoxide and chromium sesquioxide content - Inductively coupled plasma atomic emission spectrometry
GB/T 31931-2015
Zinc or zinc alloy coating on steel sheets or strips—Determination of hexavalent chromium content—1,5-Diphenylcarbohydrazide (diphenylcarbazide) spectrophotometric method
GB/T 23943-2009
Inorganic chemicals for industrial use - General method for the determination of chromium(Ⅵ) content - 1,5-diphenylcarbohydrazide spectrophotometric method
YS/T 575.11-2007
Methods for chemical analysis of bauxite—Part 11:Determination of chromium oxide content—Flame atomic absorption spectrophotometric method
HB/Z 5107.11-2004
Methods for analysis of chemical oxidation solution for magnesium alloy-Part 11:Determination of sodium bichromate content in sodium bichromate and magnesium sulfate oxidation solution by potentiometric method
GB/T 15057.7-1994
Limestone for chemical industry--Determination of aluminium oxide content--Chromazurol S spectrophotometric method