Home / Standards / GB/T 5211.17-1988 GB/T 5211.17-1988 Active Comparison of contrast ratio(hiding power)of white pigments 白色颜料对比率(遮盖力)的比较 Standard Type GBT ICS 87.060.10 CCS G53 Status 现行 Issue Date 1988-09-05 Implementation 1989-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A