GB/T 4854.7-2008

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions

STANDARD published on 2.7.2008

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The information about the standard:

Designation standards: GB/T 4854.7-2008
Publication date standards: 2.7.2008
Country: Chinese technical standard
Category: Technical standards GB