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 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
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 1395.1-2020
YS/T 445.12-2019
Methods for chemical analysis of silver concentrates-Part 12:Determination of chromiunl content-Diphenylcarbazide spectrophotometry
YS/T 1319.1-2019
Methods for chemical analysis of tetraammineplatinum(Ⅱ) nitrate-Part 1:Determination of platinum content-Hydrazine hydrate reduction method
ASTM C1849/C1849M-23
Standard Test Method for Density and Air Content (Pressure Method) of Freshly Mixed Roller-Compacted Concrete
ASTM C138/C138M-24a
Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
YS/T 1317-2019
Method for chemical analysis of karstedt catalyst solution-Determination of platinum content-Hydrazine hydrate reduction method
GB/T 9758.5-1988
Paints and varnishes--Determination of “soluble” metal content--Part 5:Determination of hexavalent chromium content of the pigment portion of the liquid paint or the paint in powder form--Diphenylcarbazide spectrophotometric method
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
ASTM C138/C138M-23
Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
ASTM C138/C138M-24
Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete