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
GB/T 28019-2011
Adornment - Determination of Chromium(Ⅵ)- 1, 5-Diphenylcarbohydrazide spectrophotometric method
FZ/T 01148-2019
Textiles—Determination of adipicdihydrazide—Method using LC-MS/MS
HJ 908-2017
GB/T 15555.5-1995
Solid waste--Determination of total chromium--1,5-Diphenylcarbohydrazide spectrophotometric method
GB/T 15555.4-1995
Solid waste--Determination of chromium(VI)--1,5-Diphenylcarbohydrazide 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
YB/T 4582.2-2017
Ferrosilicon nitride—Determination of chromium content—Diphenylcarbonhydrazide spectrophotometric method
GB/T 4325.19-2013
Methods for chemical analysis of molybdenum - Part 19: Determination of chromium content - Diphenylcarbazide spectrophotometry
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 7467-1987
Water quality--Determination of chromium(Ⅵ)--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
GB/T 6609.8-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of chromium sesquioxide content--Diphenyl carbazide photometric method
GB/T 223.12-1991
Methodsfor chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
YS/T 445.12-2019
Methods for chemical analysis of silver concentrates-Part 12:Determination of chromiunl content-Diphenylcarbazide spectrophotometry
JB/T 9552.4-1999
T/CSTM 00507-2021