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 4854.3-2022 Acoustics—Reference zero for the calibration of audiometric equipment—Part 3：Reference equivalent threshold vibratory force levels for pure tones and bone vibrators 声学校准测听设备的基准零级第3部分: 骨振器纯音基准等效阈振动力级 - 英文版
	GB/T 4854.9-2016 Acoustics—Reference zero for the calibration of audiometric equipment—Part 9: Preferred test conditions for the determination of reference hearing threshold levels 声学校准测听设备的基准零级第9部分：确定基准听阈级的优选测试条件 - 英文版

Find out:2Items | To Page of: First -Previous-Next -Last | 1