Home / Standards / GB/T 46432-2025 GB/T 46432-2025 Active Photography—Processing chemicals—Specifications for 1-phenyl-3-pyrazolidinone 摄影 加工用化学品 1-苯基-3-吡唑烷酮规范 Standard Type GBT ICS 37.040.30 CCS G84 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A