China National Standards

China conductionthreshold GB Standards List

  •  China "conductionthreshold" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 7583-1987 Acoustics--Pure tone air conductionthreshold audio-metry--For hearing conservation purposes
    声学 纯音气导听阈测定 听力保护用    		 China National Standards
    conductionthreshold
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