China National Standards

China 1:Subjective GB Standards List

  •  China "1:Subjective" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 7584.1-2004 Acoustics--Hearing protectors--Part 1:Subjective method for the measurement of sound attenuation
    声学 护听器 第1部分:声衰减测量的主观方法    		 China National Standards
    1:Subjective
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