YB/T 5070-2014
α-methyl pyridine
GB/T 27715-2011
3-methylpyridine for industrial use
YB/T 5071-2015
β-methyl pyridine fraction
HG/T 4482-2012
HG/T 4483-2012
HG/T 5712-2020
HG/T 6145-2023
HG/T 5615-2019
HG/T 6340-2024
HG/T 5502-2018
N -Methyl-4- (p -formylstyryl) pyridiniuID methyl sulfate
YB/T 5071-2005
β-Picoline fraction
HG/T 6251-2023
NY/T 3037-2016
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
DB42/T 1720-2021
SN/T 5448-2022
GB/T 689-1998
Chemical reagent--Pyridine
HG/T 5612\uff5e5615-2019