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BS EN ISO 3744:2009
Acoustics. Determination of sound power levels of noise sources using sound pressure. Engineering method in an essentially free field over a reflecting plane
42 стр.
Заменен
Печатная копияПечатное издание
214.70 £ (включая НДС 20%)
Разработчик:
Зарубежные/BSI
ICS:
17.140.01 Acoustic. Including acoustic insulation / Акустические измерения и борьба с шумами в целом. Включая звукоизоляцию
Ключевые слова:
Noise (environmental), Acoustic measurement, Sound intensity, Production equipment, Test equipment, Sound sources, Microphones, Calibration, Testing conditions, Free-field rooms, Acoustic testing rooms, Reproducibility, Mathematical calculations, Grades (quality)