Acoustic decibel
11.06.2020 | Категория: Обустройство участка
In addition, sanitary standards provide the limit values of noise levels for residential premises: — maximum sound levels in the daytime — 55 dBA (acoustic decibel) and, respectively, 45 dBA into the night; — equivalent levels of sound 40dba in the daytime and 30dba in the night.
