China Acoustics―Reference GB Standards Search Result

and Chinese version GB Standards, you can purchase directly in the web page; After receive your payment, we will send the GB Standards PDF file to your Email within 1~3 days.
2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days .


	GB/T 4854.6-2014 Acoustics―Reference zero for the calibration of audiometric equipment―Part 6: Reference hearing threshold levels for test signals of short duration 声学校准测听设备的基准零级第6部分：短时程测试信号的基准听阈 - 中英文版

Find out:1Items | To Page of: First -Previous-Next -Last | 1