GB/T 4854.8-2007

Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tone and circumaural earphones

NORMA vydána dne 14.11.2007

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The information about the standard:

Designation standards: GB/T 4854.8-2007
Publication date standards: 14.11.2007
Country: Chinese technical standard
Kategorie: Technické normy GB