Home / Standards / GB/T 24438.3-2012 GB/T 24438.3-2012 Active Natural disaster information statistics - Part 3：Stratified random sampling survey statistical methods 自然灾害灾情统计 第3部分：分层随机抽样统计方法 Standard Type GBT ICS 03.020 CCS A20 Status 现行 Issue Date 2012-10-12 Implementation 2013-02-01 Responsible Dept 应急管理部 Drafting Unit N/A