HG/T 4477-2012
HG/T 4478-2012
GB/T 6730.44-2017(\u82f1\u6587\u7248)
铁矿石 锌含量的测定 1-(2-吡啶偶氮)-2-萘酚分光光度法
GB/T 39715.2-2021
Plastics—Biobased content—Part 2: Determination of biobased carbon content
HG/T 2078-2012
HG/T 4540-2013
2,2-Dibromo-2-cyanoacetamide
HG/T 5486-2018
2-Cyano-4-nitro-6-bromoaniline
GB/T 6730.44-2017e
Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthoI spectrophotometric method
GB/T 6730.44-2017
Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthol spectrophotometric method
HG/T 4162-2010
1,4-Diamino-2,3-dicyanthraquinone
HG 2078-1991
NY/T 3037-2016
DB42/T 1720-2021
T/QGCML 1423-2023
GB/T 6730.37-2017
Iron ores—Determination of cobalt content—4-[(5-chloro-2-pyridyl)azo]-1,3-diamino-benzene spectrophotometric method
SH/T 1499.5-1997
Pure adipic acid--Determination of content of iron--2,2'-Bipyridyl spectrophotometric method
HG/T 2078-2005
2-Cyano-4-nitroaniline
T/CST 20-2024
NY/T 3141-2017
GB/T 9984.6-2004
Sodium tripolyphosphate for industrial use—-Determination of iron content—-2,2'-bipyridyl spectrophotometric method