GB/T 6730.34-2017(\u82f1\u6587\u7248)
铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法
T/CI 531-2024
T/CI 528-2024
T/CI 529-2024
T/CASME 1047-2023
T/SCAS 16-2024
T/CDIA 0014-2020
HG/T 5652\uff5e5654-2019
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 5072~5074-2016
GB/T 21841-2019
Rubber antioxidant—N-1,3-dimethylbutyl-N’-phenyl-p-phenylenediamine(6PPD)
HG/T 5654-2019
HG/T 5946\uff5e5948-2021
HG/T 5072-2016
Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
HG/T 5073-2016
Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide
HG/T 5949-2021
HG/T 5303\uff5e5305-2018
GB/T 13194-1991
Water quality--Determination of nitrobenzene, mononi-trotoluene (MNT), nitrochlorobenzene and oinitrotoluene (ONT)--Gas chromatography
HG/T 5949\uff5e5950-2021
SN/T 4442-2016
Determination of nitrobenzene,nitrotuluene and dinitrotoluene in cosmetics for import and export