GB/T 7717.12-2022
Acrylonitrile for industrial use—Part 12: Determination of purity and impurities—Gas chromatographic method (English Version)

Standard No.: GB/T 7717.12-2022
Language: Chinese, Available in English version
Release Date: 2022
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 7717.12-2022
Replace: GB/T 7717.12-2008

Scope: This document specifies a gas chromatographic method for the determination of the purity and impurity content of acrylonitrile for industrial use. These impurities include acetaldehyde, acetone, acrolein, benzene, methacrylonitrile, acetonitrile, azole, propionitrile, cis-butenenitrile and trans-butenenitrile, and the like. This document is applicable to the determination of acrylonitrile samples with a purity of not less than 99% (mass fraction). Condition 1 in Table 1 is suitable for the determination of impurities and acrylonitrile purity with a content of not less than 10.0 mg/kg. Condition 2 is suitable for Determination of impurities (except methacrylonitrile) with a content of 2.0 mg/kg to 10.0 mg/kg.

GB/T 7717.12-2022 Referenced Document

GB/T 3723 Sampling of chemical products for industrial use--Safety in sampling
GB/T 6283 Chemical products.Determination of water Karl.fischer method(general method)
GB/T 6324.8 Test methods of organic chemical products.Part 8: Determination of water of liquid products.Carl · fischer coulometric method
GB/T 6680 General rules for sampling liquid chemical products
GB/T 7717.15 Acrylonitrile for industrial use—Part 15：Determination of concent of p-hydroxylanisole
GB/T 7717.5 Acrylonitrile for industrial use.Part5:Determination of acidity and pH value and titration value
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

2022 GB/T 7717.12-2022 Acrylonitrile for industrial use—Part 12: Determination of purity and impurities—Gas chromatographic method
2009 GB/T 7717.12-2008 Acrylonitrile for industrial use - Part 12: Determination of purity and impurity content by gas chromatography
1994 GB/T 7717.12-1994 Acrylonitrile for industrial use-Determination of content of acetonitrile acetone and acrolein-Gas chromatographic method