GB 18533-2001
Occupational exposure limit for polymethylene polyphenyl isocyanate(PMPPI) in the air of workplace
GB/T 30304-2013
Methylphenyldichlorosilane for industial use
GB/T 13658-2015
Polymethylene polyphenylene isocyanate
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/HNPCIA 19-2019
GB/T 6730.30-2017(\u82f1\u6587\u7248)
铁矿石 铬含量的测定 二苯基碳酰二肼分光光度法
HG/T 5946\uff5e5948-2021
HG/T 6246-2023
QB/T 4813-2015
Fragrance - 3-methyl-5-phenylpentanol
HG/T 5948-2021
HG/T 5154-2017
Dimethoxymethylphenylsilane for industrial use
HG/T 5652\uff5e5654-2019
HG/T 2306-2020
1-Phenyl-3-methyl-5-pyrazolone
HG/T 5653-2019
GB/T 1400-2014
Chemical reagent―Hexamethylene tetramine
HG/T 5072-2016
Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
HG/T 5073-2016
Bis(2,4,6-trimethylbenzoyl)phenylphosphine oxide
HG/T 5947-2021
HG/T 5946-2021
GB/T 9015-1998
Hexamethylene tetramine for industrial use