Name: Manville Microlite materassino in fibra di vetro
Creator: Physikalisch-Technische Bundesanstalt (PTB)
License: https://acousticindex.com/it/termini-di-utilizzo

Valori misurati in tabella (20 misurazioni)

Manville Microlite materassino in fibra di vetro: coefficiente di assorbimento acustico αs secondo ISO 354 per frequenza e configurazione di prova
Configurazione	α_w	125 Hz	250 Hz	500 Hz	1000 Hz	2000 Hz	4000 Hz
1 inch · 0.05 lb/ft² · 0	0.55	0.12	0.31	0.56	0.73	0.83	0.88
1 1/2 inch · 0.08 lb/ft² · 0	0.80	0.19	0.53	0.81	0.91	0.94	0.98
2 inches · 0.10 lb/ft² · 0	0.90	0.23	0.65	0.90	0.98	0.98	1.01
1 inch · 0.08 lb/ft² · 0	0.60	0.08	0.34	0.59	0.75	0.86	0.81
1 inch · 0.17 lb/ft² · 0	0.60	0.11	0.30	0.66	0.88	1.00	1.01
1 inch · 0.25 lb/ft² · 0	0.65	0.11	0.35	0.77	1.01	1.04	1.05
1 inch · 0.05 lb/ft² · 25 mm	0.65	0.17	0.59	0.57	0.65	0.75	0.83
1 1/2 inch · 0.08 lb/ft² · 25 mm	0.80	0.24	0.66	0.72	0.81	0.89	0.93
2 inches · 0.10 lb/ft² · 25 mm	0.95	0.27	0.80	0.88	0.96	1.01	1.05
3 inches · 0.15 lb/ft² · 25 mm	1.00	0.41	1.02	1.03	1.02	1.02	1.10
1 inch · 0.08 lb/ft² · 25 mm	0.70	0.12	0.57	0.60	0.73	0.86	0.93
1 inch · 0.13 lb/ft² · 25 mm	0.75	0.11	0.57	0.69	0.87	0.96	1.02
1 inch · 0.17 lb/ft² · 25 mm	0.80	0.15	0.59	0.74	0.93	1.01	1.06
1 inch · 0.05 lb/ft² · 405 mm	0.65	0.30	0.38	0.61	0.80	0.89	0.97
1 1/2 inch · 0.08 lb/ft² · 405 mm	0.80	0.30	0.53	0.79	0.93	0.98	1.03
2 inches · 0.10 lb/ft² · 405 mm	0.90	0.48	0.66	0.92	0.98	1.00	1.07
1 inch · 0.08 lb/ft² · 405 mm	0.65	0.26	0.39	0.62	0.81	0.88	0.84
1 inch · 0.13 lb/ft² · 405 mm	0.70	0.33	0.40	0.70	0.92	0.99	1.06
1 inch · 0.17 lb/ft² · 405 mm	0.65	0.27	0.37	0.67	0.92	1.02	1.09
1 inch · 0.25 lb/ft² · 405 mm	0.65	0.25	0.36	0.79	1.03	1.09	1.13

Fonte dei dati

Dati di riferimento PTB

Manville Microlite materassino in fibra di vetro

Proprietà del materiale

Dati di misura

Assorbimento acustico

Valori di frequenza

			Valore
3 inches	0.15 lb/ft²	25 mm	α_w1.00
2 inches	0.10 lb/ft²	25 mm	α_w0.95
2 inches	0.10 lb/ft²	0	α_w0.90
2 inches	0.10 lb/ft²	405 mm	α_w0.90
1 1/2 inch	0.08 lb/ft²	0	α_w0.80
1 1/2 inch	0.08 lb/ft²	25 mm	α_w0.80
1 inch	0.17 lb/ft²	25 mm	α_w0.80
1 1/2 inch	0.08 lb/ft²	405 mm	α_w0.80
1 inch	0.13 lb/ft²	25 mm	α_w0.75
1 inch	0.08 lb/ft²	25 mm	α_w0.70
1 inch	0.13 lb/ft²	405 mm	α_w0.70
1 inch	0.25 lb/ft²	0	α_w0.65
1 inch	0.05 lb/ft²	25 mm	α_w0.65
1 inch	0.05 lb/ft²	405 mm	α_w0.65
1 inch	0.08 lb/ft²	405 mm	α_w0.65
1 inch	0.17 lb/ft²	405 mm	α_w0.65
1 inch	0.25 lb/ft²	405 mm	α_w0.65
1 inch	0.08 lb/ft²	0	α_w0.60
1 inch	0.17 lb/ft²	0	α_w0.60
1 inch	0.05 lb/ft²	0	α_w0.55