GB/T 6730.30-2017(\u82f1\u6587\u7248)
铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法
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 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
YS/T 1395.1-2020
YS/T 1319.1-2019
Methods for chemical analysis of tetraammineplatinum(Ⅱ) nitrate-Part 1:Determination of platinum content-Hydrazine hydrate reduction method
YB/T 4582.2-2017
Ferrosilicon nitride—Determination of chromium content—Diphenylcarbonhydrazide 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
YS/T 1317-2019
Method for chemical analysis of karstedt catalyst solution-Determination of platinum content-Hydrazine hydrate reduction 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
KS E ISO 619-2021
Manganese ores — Determination of chromium content —Diphenylcarbazide photometric method and silver persulphate titrimetric method
ISO 4936:1984
Steel and cast iron — Determination of chromium content — Diphenylcarbazide spectrophotometric method
ISO 3119:1976
Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chromium content — Diphenylcarbazide photometric method
ISO 3856-5:1980
Paints and varnishes — Determination of \