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GB standards are the China national standards; Prefix code GB are Mandatory standards, GB/T are Recommended standards; All products or service must be compliance with GB standards; If you want to export products or services to huge Chinese market, need ensure they are meet the requirements of GB china national standards; We provide Chinese GB standards and English version GB standards Lookup, Translate, Download, Imported Commodity GB standards Testing and Compliance review services. |
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 17247.1-2000 |
Acoustics--Attenuation of sound during propagation outdoors--Part 1:Calculation of the absorption of sound by the atmosphere 声学 户外声传播衰减 第1部分:大气声吸收的计算 |
China National Standards Acoustics--A |
 English PDF |
| GB/T 17696-1999 |
Acoustics--Audiometric test methods--Part 3:Speech audiometry 声学 测听方法 第3部分:语言测听 |
China National Standards Acoustics--A |
English PDF |
| GB/T 17247.2-1998 |
Acoustics--Attenuation ofsound during propagation outdoors--Part 2:General method of calculation 声学 户外声传播的衰减 第2部分:一般计算方法 |
China National Standards Acoustics--A |
English PDF |
| GB/T 16403-1996 |
Acoustics--Audiometric test methods--Basic pure tone air and bone conduction threshold audiometry 声学 测听方法 纯音气导和骨导听阈基本测听法 |
China National Standards Acoustics--A |
English PDF |
| GB/T 16296-1996 |
Acoustics--Audiometric test methods--Part 2:Sound field audiometry with pure tone and narrow-band test signals 声学 测听方法 第2部分:用纯音及窄带测试信号的声场测听 |
China National Standards Acoustics--A |
English PDF |
| GB/T 12800-1991 |
Acoustics--Audible emergency evacuation signal 声学 紧急撤离听觉信号 |
China National Standards Acoustics--A |
English PDF |
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