Home / Standards / GB/T 22240-2008 GB/T 22240-2008 Abolished Information security technology - Classification guide for classified protection of information system security 信息安全技术 信息系统安全等级保护定级指南 Standard Type GBT ICS 35.040 CCS L80 Status 废止 Issue Date 2008-06-19 Implementation 2008-11-01 Responsible Dept 国家标准委 Drafting Unit N/A