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DIN EN ISO 12354-3:2017-11

Действует
Building acoustics - Estimation of acoustic performance of buildings from the performance of elements - Part 3: Airborne sound insulation against outdoor sound (ISO 12354-3:2017); German version EN ISO 12354-3:2017 — 36 стр.
ICS
91.120.20 Acoustics in building. Sound insulation / Акустика в зданиях. Звукоизоляция