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
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
KS M 1911-2002(2007)
Phthalic anhydride for industrial use-Methods of test-Determination of phthalic anhydride content-Titrimetric method
KS M 1915-2002(2007)
Phthalic anhydride for industrial use-Methods of test-Determination of 1,4-naphthaquinone content-Colorimetric method
GB/T 40409-2021
Flame retardant chemical—Tetrabromophthalate diol
HG/T 5785-2021
4-Chlorophthalic anhydride for industrial use
HG/T 5784-2021
3-Chlorophthalic anhydride for industrial use
HG/T 5818-2020
GB/T 30053-2013
Determination of Benzene, toluene and xylene in crude benzene
HG/T 5784\uff5e5787-2021
KS M 1674-2008(2018)
Phthalic anhydride for industrial use
T/HEBQIA 002-2021
GB/T 14327-2009
Determination of thiophene content in benzene
HG/T 5817\uff5e5818-2020
GB/T 8039-2022
Determination of total sulfur of coking benzole products
DB12/T 101.072-2003
GB/T 27580-2011
Essential oils and aromatic extracts - Determination of residual benzene content
GB/T 14326-2009
Determination of carbon disulfide content in benzene
GB/T 6730.31-2017
Iron ores—Determination of vanadium—N-benzoyl-N-phenylhydroxylamine extraction spectrophotometric method
GB/T 3208-2009
Standard test method for the total tulfur tontent in tenzene - Type products by oxidative microcoulometry