{"id":32656,"date":"2025-05-08T19:30:19","date_gmt":"2025-05-08T17:30:19","guid":{"rendered":"https:\/\/gustafs.com\/knowledge-hub\/o-czasie-pochlaniania-dzwieku-i-poglosu\/"},"modified":"2025-05-08T19:30:21","modified_gmt":"2025-05-08T17:30:21","slug":"o-czasie-pochlaniania-dzwieku-i-poglosu","status":"publish","type":"academy","link":"https:\/\/gustafs.com\/pl\/knowledge-hub\/akustyka\/o-czasie-pochlaniania-dzwieku-i-poglosu\/","title":{"rendered":"O czasie poch\u0142aniania d\u017awi\u0119ku i pog\u0142osu"},"content":{"rendered":"\n

Czasy poch\u0142aniania d\u017awi\u0119ku i pog\u0142osu <\/h1>\n\n

<\/p>\n\n

Klasyfikacja absorpcji w UE (EN ISO 11654)<\/h5>\n\n

Wsp\u00f3\u0142czynniki poch\u0142aniania d\u017awi\u0119ku s\u0105 mierzone zgodnie z norm\u0105 ISO 354. Wa\u017cony wsp\u00f3\u0142czynnik poch\u0142aniania d\u017awi\u0119ku (\u03b1w) i klasa poch\u0142aniania d\u017awi\u0119ku, jak pokazano w poni\u017cszej tabeli, zosta\u0142y obliczone zgodnie z norm\u0105 ISO 11654. <\/p>\n\n

Klasa absorpcji<\/strong><\/td>Wa\u017cony wsp\u00f3\u0142czynnik absorpcji<\/strong><\/td>Opis<\/strong><\/td><\/tr>
A<\/td>\u03b1w 0,90 \u2013 1,00<\/td>Niezwykle absorbuj\u0105cy<\/td><\/tr>
B<\/td>\u03b1w 0,90 \u2013 0,85<\/td>Niezwykle absorbuj\u0105cy<\/td><\/tr>
C<\/td>\u03b1w 0,60 \u2013 0,75<\/td>Wysoce absorbuj\u0105cy<\/td><\/tr>
D<\/td>\u03b1w 0,30 \u2013 0,55<\/td>Absorbuj\u0105cy<\/td><\/tr>
E<\/td>\u03b1w 0,15 \u2013 0,25<\/td>Ledwo wch\u0142ania<\/td><\/tr>
Brak klasy<\/td>\u03b1w 0,00 \u2013 0,10<\/td>Odzwierciedla<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

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Ameryka\u0144skie wsp\u00f3\u0142czynniki redukcji ha\u0142asu (ASTM 423)<\/h5>\n\n

NRC (Noice Reduction Coefficient) okre\u015bla si\u0119 jako warto\u015b\u0107, kt\u00f3ra pochodzi ze \u015bredniej warto\u015bci osi\u0105gni\u0119tej dla nast\u0119puj\u0105cych cz\u0119stotliwo\u015bci: 250, 500, 1000 i 2000 Hz. Przybli\u017cone przeliczenie z \u03b1w na NRC: <\/p>\n\n

\u03b1w<\/strong><\/td>NRC<\/strong><\/td><\/tr>
A<\/td>NRC > 0,75<\/td><\/tr>
B<\/td>NRC > 0,75<\/td><\/tr>
C<\/td>0,5 < NRC < 0,75<\/td><\/tr>
D<\/td>0,5 < NRC < 0,75<\/td><\/tr>
E<\/td>0,25 < NRC < 0,5<\/td><\/tr>
Brak klasy<\/td>NRC < 0,25<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

Nale\u017cy pami\u0119ta\u0107, \u017ce u\u017cycie materia\u0142\u00f3w d\u017awi\u0119koch\u0142onnych, na przyk\u0142ad klasy B, nie skutkuje automatycznie pomieszczeniem z klas\u0105 B, ale w rzeczywisto\u015bci ca\u0142e pomieszczenie mo\u017ce by\u0107 sklasyfikowane wy\u017cej lub ni\u017cej.<\/p>\n\n

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Wa\u017cony wsp\u00f3\u0142czynnik poch\u0142aniania d\u017awi\u0119ku (\u03b1w) i klasa poch\u0142aniania d\u017awi\u0119ku, jak pokazano w poni\u017cszej tabeli, zosta\u0142y obliczone zgodnie z norm\u0105 ISO 11654. 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