GA/T 16.61-2012
GB/T 14571.3-2022
Test method of ethylene glycol for industrial use—Part 3:Determination of content of aldehydes
GB/T 14849.3-2020
Methods for chemical analysis of silicon metal—Part 3:Determination of calcium content
GB/T 14849.1-2020
Methods for chemical analysis of silicon metal—Part 1:Determination of iron content
GB/T 7717.15-2018
Acrylonitrile for industrial use—Part 15:Determination of concent of p-hydroxylanisole
GB/T 13255.7-2009
Test methods of caprolactam for industrial use - Part 7: Determination of iron content
GB/T 7717.12-2022
Acrylonitrile for industrial use—Part 12: Determination of purity and impurities—Gas chromatographic method
GB/T 12688.3-2011
Test method of styrene for industrial use - Part 3:Determination of content of polymer
GB/T 14849.6-2014
Methods for chemical analysis of silicon metal―Part 6:Determination of carbon―Infrared absorption method
GB/T 12688.5-2019
Test method of styrene for industrial use—Part 5:Determination of the content of total aldehydes—Titrimetric method
GB/T 13255.8-2009
Test methods of caprolactam for industrial use - Part 8: Determination of cyclohexanone oxime content
GB/T 30921.2-2016
Test method of purified terephthalic acid (PTA) for industrial use—Part 2: Determination of metal content
GB/T 30921.3-2016
Test method of purified terephthalic acid (PTA) for industrial use—Part 3: Determination of water content
GB/T 7717.11-2008
Acrylonitrile for industrial use - Part 11: Determination of content of iron and copper - Spectrophotometric method
GB/T 14849.8-2015
Methods for chemical analysis of silicon metal—Part 8: Determination of copper content—Atomic absorption spectrometric method
GB/T 14849.10-2016
Methods for chemical analysis of silicon metal—Part 10:Determination of mercury content—Atomic fluorescence spectrometry method
GB/T 14849.5-2014
Methods for chemical analysis of silicon metal―Part 5:Determination of impurity contents―X-ray fluorescence method
GB/T 12688.4-2011
Test method of styrene for industrial use - Part 4:Determination of content of peroxides - Titrimetric method
GB/T 14849.7-2015
Methods for chemical analysis of silicon metal—Part 7: Determination of phosphorus content—Phosphorus molybdenum blue spectrophotometry
GB/T 13255.4-2009
Test methods of caprolactam for industrial use - Part 4: Determination of volatile bases content - Titrimetric method after distillation