Home / Standards / GB/T 23975-2009 GB/T 23975-2009 Active Determination of the quantity of tetrachlorophthalic anhydride in dye and pigment products 染料及颜料产品中四氯苯酐的测定 Standard Type GBT ICS 87.060.10;71.100.01 CCS G55 Status 现行 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