Ключевые слова:
Noise control (acoustic), Silencers, Acoustic testing, Acoustic measurement, Acoustic properties and phenomena, Acoustics, Noise control devices, Performance, Classification systems, Technical data sheets, Field testing, Fire safety, Hazards, Instructions for use, Attenuation, Ventilation equipment, Air-conditioning equipment, Fans, Compressors, Turbines, Internal combustion engines, Sound intensity