GB/T 30921.1-2014
Test method of purified terephthalic acid (PTA) for industrial use―Part 1:Determination of concentrations of 4-carboxybenzaldehyde (4-CBA) and p-toluic acid (p-TOL)
HG/T 5501\uff5e5504-2018
T/HPFCIA 22006-2022
SH/T 1687-2000
Purified terephthalic acid(PTA) for industrial use--Determination of 4-carboxybenzaldehyde and p-toluic acid--High performance capillary electrophoresis (HPCE)
SH/T 1612.7-1995
T/CPUIA 0009-2022
T/CPUIA 0004-2022
T/CPUIA 0008-2022
GB 30601-2014
HG/T 5502-2018
N -Methyl-4- (p -formylstyryl) pyridiniuID methyl sulfate
HG/T 5623-2019
HG/T 5694\uff5e5697-2020
GB/T 33089-2016
Chemical reagent—N,N-dimethyl-p-phenylenediamine dihydrochloride
GB/T 8851-2005
Food additive Propyl p-hydroxybenzoate
HG/T 5696-2020
p-Nitrotolnene-o-snlfonic acid
HG/T 6250-2023
HG/T 5803\uff5e5806-2021
GB 1886.31-2015
GB/T 17814-2022
Determination of butyl hydroxy anisole,dibutyl hydroxy toluene,tertiary butyl hydroquinone,ethoxyquin and propyl gallate in feeds
GB 5009.31-2016