GB/T 32159-2015
Coking pure pyridine
GB/T 27567-2011
Pyridine for industrial use
GB/T 24199-2009
Refined pyridine - Determination of pyridine content - Gas chromatographic method
YB/T 5070-2014
α-methyl pyridine
GB/T 27715-2011
3-methylpyridine for industrial use
GB/T 689-1998
Chemical reagent--Pyridine
YB/T 5071-2015
β-methyl pyridine fraction
YB/T 5072-2014
Determination of pyridine and homologues contents of curde light pyridine
HG/T 4875~4877-2016
NY/T 4383-2023
HG/T 4478-2012
HG/T 4477-2012
HG/T 4428-2012
HG/T 4876-2016
3-Aminopyridine for industrial use
HG/T 5130-2016
Clopyralid technical material
HG/T 5131-2016
Clopyralid aqueous solution
HG/T 4877-2016
4-Aminopyridine for industrial use
HG/T 4875-2016
2-Aminopyridine for industrial use
HG/T 6015-2022
HG/T 4483-2012