Standard Number: GB/T 4854.8-2007(GB/T4854.8-2007)
Chinese:声学 校准测听设备的基准零级 第8部分:耳罩式耳机纯音基准等效阈声压级
English:Acoustics – Reference zero for the calibration of audiometric equipment – Part 8: Reference equivalent threshold sound pressure levels for pure tone and circumaural earphones
Effective Date:2008-05-01
Regulatory Authority:
Chinese Academy of Sciences
Issuing Regulatory Authority:General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China,China National Standardization Administration
Adheres to international standards:Y
PDF Downloadable:N
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