GB/T 7717.13-1994 Acrylonitrile for industrial use—Determination of acidity—Titrimetric method

GB 7717.1-1994 Acrylonitrile for industrial use—Specifications GB/T 7717.2-1994 Acrylonitrile for industrial use—Detrmination of appearance GB/T 7717.4-1994 Acrylonitrile for industrial use—Determination of density GB/T 7717.5-1994 Acrylonitrile for industrial use—Determination of pH value(5％ aqueous solution) GB/T 7717.6-1994 Acrylonitrile for industrial use—Determination of titration value(5 ％ aqueous solution) GB/T 7717.7-1994 Acrylonitrile for industrial use—Determination of content of water GB/T 7717.8-1994 Acrylonitrile for industrial use—Determination of content of total aldehydes—Spectrophotometric method GB/T 7717.9-1994 Acrylonitrile for industrial use—Determination of content of total cyanides—Titrimetric method GB/T 7717.10-1994 Acrylonitrile for industrial use—Determination of content of peroxides—Spectrophotometric method GB/T 7717.11-1994 Acrylonitrile for industrial use—Determination of content of iron—Spectrophotometric method GB/T 7717.12-1994 Acrylonitrile for industrial use—Determination of content of acetonitrile, acetone and acrolein—Gas chromatographic method GB/T 7717.14-1994 Acrylonitrile for industrial use—Determination of content of copper—Spectrophotometric method GB/T 7717.15-1994 Acrylonitrile for industrial use—Determination of content of p-hydroxylanisole—Spectrophotometric method GB/T 7717.16-1994 Acrylonitrile for industrial use—Determination of content of ammonia—Titrimetric method

GB/T 7717.5-2008 Acrylonitrile for industrial use—Part 5:Determination of acidity and pH value and titration value

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 3723-1999 Sampling of chemical products for industrial use—Safety in sampling GB/T 6678-2003 General principles for sampling chemical products GB/T 6680-2003 General rules for sampling liquid chemical products GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods