Home / Standards / GB/T 23649-2009 GB/T 23649-2009 Active Graphic technology - Process control - Optical, geometrical and metrological requirements for reflection densitometers for graphic arts use 印刷技术 过程控制 印刷用反射密度计的光学、几何学和测量学要求 Standard Type GBT ICS 37.100.01 CCS A17 Status 现行 Issue Date 2009-05-06 Implementation 2009-11-01 Responsible Dept 国家新闻出版署(国家版权局) Drafting Unit N/A