Home / Standards / GB/T 44994-2024 GB/T 44994-2024 Active Acoustics—Hearing aid fitting management (HAFM) 声学 助听器验配管理 Standard Type GBT ICS 13.140 CCS A59 Status 现行 Issue Date 2024-12-31 Implementation 2025-04-01 Responsible Dept 中国科学院 Drafting Unit N/A