China 'GB/T 4854.5-2008
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 4854.5-2008
Acoustics - Reference zero for the calibration of audiometric equipment- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz 声学 校准测听设备的基准零级 第5部分:8kHz-16kHz频率范围纯音基准等效阈声压级
Issued Date:2008-07-02
Implemented Date:2009-02-01
Issued by:
The Standardization Administration of the People's Republic of China