The "Code for Design of Comprehensive Utilization of Iron and Steel Industry Resources" is now approved as a national standard, numbered GB50405-2017, and will be implemented from January 1, 2018. Among them, Articles 4.5.2 and 4.7.5 are mandatory provisions and must be strictly implemented. The original "Code for Design of Comprehensive Utilization of Iron and Steel Industry Resources" GB50405-2007 shall be abolished at the same time. This specification is published and distributed by China Planning Publishing House organized by the Institute of Standards and Quotas of our ministry. Ministry of Housing and Urban-Rural Development of the People's Republic of China May 27, 2017
GB 50405-2017 history
2017GB 50405-2017 Code for Design of Comprehensive Utilization of Resources in Iron and Steel Industry
2007GB 50405-2007 Code for design of comprehensive utilization of iron and steel industry resources