Sound measurements
ASTM
Sound Absorption Coefficient
Fellert Base + Top on 1 inch
glass fibre board with air gap behind
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PDF (74 k)
Sound Absorption Coefficient
Fellert Ultra on 1 inch Fellert glass
fibre board mounted on 0.5 inch GWB
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PDF (74 k)
Sound Absorption Coefficient
Fellert Ultra on 1.5 inch Fellert glass
fibre board mounted on 0.5 inch GWB
Download:
PDF (74 k)
Sound Absorption Test
Fellert Acoustical Plaster on 1 inch fiberglass
board on 5/8 inch gypsum wallboard
Download:
PDF (1.9 MB)
ISO
FTD 39C1
Fellert Board 39 mm + Alpha Base + Alpha
Top Mounted on rigid backing
Download:
PDF (119 k)
FTD 29S3
Fellert Board 39 mm + Alpha plaster
Total construction height 200 mm
Ladda ner:
PDF (115 k)
FTD OWA
OWA 15 mm + Fellert Board 39 mm + Alpha Base + Alpha Top
Total construction height 200 mm
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PDF (160 k)