UDC TRADE STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA 中华人民共和国行业标准 HG/T20573-95 Code for Distributed Control System Engineering Design 分散型控制系统工程 设计规定 Issued on August 28, 1995 Implement on November 1, 1995 Ministry of Chemical Industry of The People’s Republic of China HG 1 Document of Ministry of Chemical Industry HJF (1995) 647 The notification about issuing the professional standard Code for distributed control system engineering design To the provinces, autonomous regions, municipalities, municipal chemical agencies (bureaus, companies) listed in the state plan, the relevant organizations: The Code for distributed control system engineering design constituted by China Chengda Chemical Engineering Co
under the organization of the Central Station of Automation Design Technology