GB/T 4129-1995

Acoustics--Determination of sound power levels of noise sources--Requirements for the performance and calibration of reference sound source

NORMA vydaná dňa 3.7.1995

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The information about the standard:

Designation standards: GB/T 4129-1995
Note: NEPLATNÁ
Publication date standards: 3.7.1995
Country: Chinese technical standard
Kategória: Technické normy GB