
Acoustics—Determination of sound power levels of noise sources—Engineering methods for small,movable sources in reverberant field—Part 1:Comparison method for hard-walled test rooms
NORMA vydaná dňa 26.3.2002
Designation standards: GB/T 6881.2-2002
Note: NEPLATNÁ
Publication date standards: 26.3.2002
Country: Chinese technical standard
Kategória: Technické normy GB