Home / Standards / GB/T 23940-2009 GB/T 23940-2009 Abolished Analytical methods of persulfate products for industrial use 工业过硫酸盐产品的分析方法 Standard Type GBT ICS 71.060.01 CCS G10 Status 废止 Issue Date 2009-06-02 Implementation 2010-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A