Home / Standards / GB/T 45969-2025 GB/T 45969-2025 Active Particle characterization—Vocabulary 颗粒表征 术语 Standard Type GBT ICS 19.120 CCS A 28 Status 现行 Issue Date 2025-08-01 Implementation 2026-02-01 Responsible Dept 国家标准委 Drafting Unit N/A