ForewordrnThis standard is drafted in accordance with the rules given in the GB/T 1.1-2009. It was issued on 29 Dec. 2017, and implemented on 1 Jul. 2018. This standard replaces the GB/T 5177-2008 Industrial lineal alkylbenzene. The following deviations have been made with respect to the GB/T 5177-2008. ——The addition of the request for content of lineal alkylbenzene; ——The addition of the analytical method for the determination of lineal alkylbenzene. This standard was proposed by China National Light Industry Council. This standard was under the jurisdiction of National Technical Committee 272 on Surfactant and Detergent of Standardization Administration of China.