HG/T 4712-2014
GB/T 40394-2021
Determination of trace trimethylamine in methanol for industrial use—Gas chromatography-mass spectrometry
DB63/T 1634-2018
T/CAPDA 060-2023
GB/T 6730.34-2017e
Iron ores—Determination of tin content—Pyrocatechol violet cetyl trimet hylamine bromide spectrophotometric method
GB/T 6730.34-2017
Iron ores—Determination of tin content—Pyrocatechol violet cetyl trimet hylamine bromide spectrophotometric method
SN/T 2266-2009
Determination of glyphosate-isopropylammonium in roundup-High performance liquid chromatography
SH/T 1498.6-2022
T/CCPIA 051-2020
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
T/SDHCIA 047-2024
HG/T 5799\uff5e5802-2021
DB63/T 1423-2015
DB63/T 1318-2014
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
T/SBX 029-2019
HG/T 3803-2006
HG/T 3803-2005
Photographic chemicals-4-(N-ethyl-N-2-methanesulfonylaminoethyl)-2-methylphenylenediamine sesquisulfate monohydrate
SH/T 1498.6-1997
Nylon 66 salt—Determination of content of nitrates—Spectrophotometric method
T/QAS 018-2020