DIN 4109-4
[CURRENT] references following documents:
Document number
Edition
Title
DIN 4109-35
2016-07
Sound insulation in buildings - Part 35: Data for verification of sound insulation (component catalogue) - Elements, windows, doors, curtain walling
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FGSV 052
; RLS-19:2019
2019
Richtlinien für den Lärmschutz an Straßen (RLS-19)
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