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1工作简况1.1任务来源本标准是国家发展改革委员会于2007年6月14日下达的《关于印发2007年行业标准修订、制定计划的通知》(发改办工业【2007】1415号)中的标准修订项目。本项目原计划2008年完成,2009年上报,由于行业标准化管理部门国家发改委和工信部工作交接,以及国家建筑材料工
1 Work Profile 1.1 Sources of Tasks This standard is the standard issued by the National Development and Reform Commission on June 14, 2007, in the Notice on Printing and Distributing the Industry Standard Amendment and Plan in 2007 (Development and Reform Commission Industrial [2007] No. 1415) Revised item The project was originally planned to be completed in 2008 and reported in 2009. As a result of the transfer of the work of the National Development and Reform Commission and the Ministry of Industry and Information Technology under the industry standardization management department and the work of the State Building Materials Workers