Home / Standards / GB/T 9858-2009 GB/T 9858-2009 Active Method for determining the folding endurance of photographic film and film base 片基与胶片耐折度的测定方法 Standard Type GBT ICS 37.040.20 CCS G81 Status 现行 Issue Date 2009-12-15 Implementation 2010-06-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A