GB/T 4333.6-2019
Ferrosilicon—Determination of chromium content—Diphenylcarbazide spectrophotometric method
GB/T 38216.1-2019
Steel slag—Determination content of chromic oxide—Diphenyl carbazide spectrophotometry method
GB/T 6730.30-2017e
Iron ores—Determination of chromium content—Diphenyl carbazide spectrophotometric method
GB/T 6730.30-2017
Iron ores—Determination of chromium content—Diphenyl carbazide spectrophotometric method
SN/T 1989-2007
Determination of daminozide residues in food for import and export-Gas chromatography-mass spectrometry method
YB/T 4582.2-2017
Ferrosilicon nitride—Determination of chromium content—Diphenylcarbonhydrazide spectrophotometric method
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
GB/T 14849.11-2016
Methods for chemical analysis of silicon metal—Part 11:Determination of chromium content—1,5-Diphenylcarbohydrazide spectrophotometric method
YS/T 445.12-2019
Methods for chemical analysis of silver concentrates-Part 12:Determination of chromiunl content-Diphenylcarbazide spectrophotometry
GB/T 6609.8-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of chromium sesquioxide content--Diphenyl carbazide photometric method
HG/T 2983-1987
Analytical method of content for phenyl maleic hydrazide
\u0413\u041e\u0421\u0422 32176-2013
Tobacco and tobacco products. Determination of maleic hydrazide residues content
UNE 38859:2003
Magnesium and magnesium alloys. Determination of copper content. Oxalyldihydrazide photometric method.
KS E ISO 619-2021
Manganese ores — Determination of chromium content —Diphenylcarbazide photometric method and silver persulphate titrimetric method
ISO 794:1976
Magnesium and magnesium alloys — Determination of copper content — Oxalyldihydrazide photometric method
ISO 795:1976
Aluminium and aluminium alloys — Determination of copper content — Oxalyldihydrazide photometric method
\u0413\u041e\u0421\u0422 \u0420 50279.7-92
Paints and varnishes. Test methods of metal content. Determination of \
NY 774-2004
Maximum residue limits for pesticides in leafy vegetable
ISO 4936:1984
Steel and cast iron — Determination of chromium content — Diphenylcarbazide spectrophotometric method