Home / Standards / GB/T 45971-2025 GB/T 45971-2025 Active Imaging materials—Photo books—Test methods for permanence and durability 影像材料 相册 持久性和耐久性的试验方法 Standard Type GBT ICS 37.040.99 CCS G81 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A