HG/T 6251-2023
HG/T 5709\uff5e5712-2020
HG/T 4483-2012
HG/T 5502-2018
N -Methyl-4- (p -formylstyryl) pyridiniuID methyl sulfate
HG/T 5274-2017
4-Chloro-3,5-dimethylphenol
HG/T 6343-2024
YS/T 1388-2020
GB/T 6730.37-2017
Iron ores—Determination of cobalt content—4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method
HG/T 5501\uff5e5504-2018
HG/T 5396\uff5e5399-2018
SN/T 4085-2014
Food contact materials - Paper recovered fiber materials - Determination of 1,2-benzylisothiazolin-3-one 2-methyl-4-isothiazolin-3-one 5-chloro-2-methyl-4-isothiazolin-3-one - High performance liquid chromatography method
HG/T 5712-2020
HG/T 5274~5276-2017
HG/T 6145-2023
HG/T 6340-2024
GB/T 14506.26-1993
Silicate rocks—Determination of cobalt content—4-[(5-Chtoro-2-pyridyl)-azo]-1,3-diamino benzene photometric method
T/QGCML 748-2023
NY/T 3037-2016
GB/T 6730.37-1986
Methods for chemical analysis of iron ores The 4-[(5-chloro-2-phridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content
SN/T 5448-2022