Home / Standards / GB/T 3674-2017 GB/T 3674-2017 Active Phthalocyanine blue B 酞菁蓝B Standard Type GBT ICS 87.060.10 CCS G54 Status 现行 Issue Date 2017-11-01 Implementation 2018-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A