Home / Standards / GB/T 12454-2008 GB/T 12454-2008 Abolished A method of evaluating the visual environment 视觉环境评价方法 Standard Type GBT ICS 13.180 CCS A25 Status 废止 Issue Date 2008-07-16 Implementation 2009-01-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委