GB/T 33089-2016
Chemical reagent—N,N-dimethyl-p-phenylenediamine dihydrochloride
GB/T 6609.18-2004
Chemical analysis methods and determination of physical performanceof alumina--Determination of sulfate content--N,N-dimethyl-P-phenylenediamine spectrophotometric method
HG/T 2417-1993
HG/T 3803-2006
HG/T 3803-2005
Photographic chemicals-4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate
GB/T 6609.10-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of vanadic oxide content--N-benzoyl-N-phenylhydroxylamine extraction photometric method
GB/T 223.50-1994
Methods for chemical analysis of iron,steel and alloy--The phenylfluorone-CTMAB direct photometric method for the determination of tin content
HG/T 2335-2003
Photographic chemicals 2[(4-Amino-3-methylphenyl)ethylamino]-ethanol sulfate(CD-4)
GB/T 12689.10-2004
The methods for chemical analysis of zinc and zinc alloys--The determination of tin content--The phenylfluorone-cetyltrimethyla-mmonium bromide spectrophotometric method
GB/T 34842-2017(\u82f1\u6587\u7248)
鞋类 化学试验方法 甲酰胺的测定
GB/T 13747.18-2022
Methods for chemical analysis of zirconium and zirconium alloys—Part 18:Determination of vanadium content—N-benzoyl-N-phenyl hydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometry
GB/T 6730.34-2017(\u82f1\u6587\u7248)
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
YS/T 981.4-2014
Method for chemical analysis of high pure indium—Determination of tin content—Benzfluorenone-cetyltrimethylammonium bromide spectrophotometric method
GB/T 14352.15-1993
Methods for chemical analysis of tungsten ores and molybdenum ores—Determination of germanium content—Distillation separation-phenyl fluorone cetyltrimethyl-ammonium bromide phtometric method
GB/T 6609.18-1986
Methods for chemical analysis of aluminium oxide--The N,N-dimethyl-P-phenylenediamine photometric method for the determination of sulfate content
HG/T 2335-1992
T/CRIAC 0011-2020
HG/T 5623-2019
YS/T 520.1-2007
Chemical analysis of gallium—Part 1:Determination of copper content—The 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline spectrophotometric method
HG/T 6342-2024