Home / Standards / GB 2097-1997 GB 2097-1997 Abolished Colour television telecast--Test charts 彩色电视广播测试图 Standard Type GB ICS 33.160.20 CCS M74 Status 废止 Issue Date 1997-05-28 Implementation 1998-03-01 Responsible Dept 广电总局 Drafting Unit 广电总局