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DIN EN 12354-6:2004-04

Действует
Building acoustics - Estimation of acoustic performance of buildings from the performance of elements - Part 6: Sound absorption in enclosed spaces; German version EN 12354-6:2003 — 28 стр.
ICS
91.120.20 Acoustics in building. Sound insulation / Акустика в зданиях. Звукоизоляция