|
Standard Specifications—FIBERSORB™ Acoustical Curtain Systems |
| Absorber and Barrier Curtain System Use Factors Summary | |
|
Curtain
Type
|
Use
Factors
|
|
SC
Single-Layer Blocking |
Total and partial enclosures, shrouds, and hoods. Noise source on one side. Noise reduction objectives: 10-15 dBA. (Actual noise reduction can vary with application and may exceed these values.) Maximum curl, tear abuse, resistance. |
|
SC-2
Single-Layer Blocking |
Total and partial enclosures, shrouds, and hoods. Noise source on one side. Best product combining the durability of a 1 lb/sq ft reinforced acoustical barrier with a 2-inch-thick faced fiberglass absorber offering maximum performance (STC=32, NRC=0.85). Noise reduction objectives: 15-20 dBA. |
|
DC
Double-Layer Blocking |
Separator walls and divider partitions. Noise source on both sides. Noise reduction objectives: 10-15 dBA. (Actual noise reduction can vary with application and may exceed these values.) Passes ASTM E84-84a; class 1 fire rating. |
|
DC-2
Double-Layer Blocking |
Separator walls and divider partitions. Noise source on both sides. Maximum performance (STC=33, NRC=0.75). Noise reduction objectives: 15-20 dBA. (Actual noise reduction can vary with application and may exceed these values.) Barrier septum 1 lb/sq ft. |
|
Sound
Transmission Loss (dB)
|
||||||||
|
Curtain
Type
|
Approx.
Product
Weight (lb/sq ft) |
1/3
Octave Band Center Frequency (Hz)
|
||||||
|
125
|
250
|
500
|
1,000
|
2,000
|
4,000
|
Sound
Transmission Coefficient |
||
|
DC
Double-Layer Blocking |
1.5
|
12
|
16
|
27
|
40
|
44
|
47
|
29
|
|
DC-2
Double-Layer Blocking |
2.5
|
19
|
22
|
28
|
40
|
56
|
61
|
33
|
|
SC
Single-Layer Blocking |
1.3
|
11
|
16
|
24
|
30
|
39
|
43
|
27
|
|
SC-2
Single-Layer Blocking |
1.5
|
13
|
20
|
29
|
40
|
50
|
55
|
32
|
|
TC
Transparent |
1.0
|
13
|
17
|
22
|
26
|
32
|
37
|
26
|
|
AC
Absorption |
0.4
|
6
|
11
|
15
|
20
|
25
|
32
|
19
|
|
Sound
Absorption Coefficients
|
||||||||
|
Curtain
Type
|
Approx.
Product
Thickness (inches) |
1/3
Octave Band Center Frequency (Hz)
|
||||||
|
125
|
250
|
500
|
1,000
|
2,000
|
4,000
|
Noise
Reduction Coefficient |
||
|
DC
Double-Layer Blocking |
2
|
0.38
|
0.89
|
0.82
|
0.76
|
0.53
|
0.35
|
0.75
|
|
SC
Single-Layer Blocking |
1
|
0.12
|
0.47
|
0.85
|
0.84
|
0.64
|
0.62
|
0.70
|
|
SC-2
Single-Layer Blocking |
2
|
0.19
|
0.99
|
0.96
|
0.80
|
0.57
|
0.33
|
0.85
|
|
AC
Absorption |
2
|
0.19
|
0.99
|
0.96
|
0.80
|
0.57
|
0.33
|
0.85
|
|
AC-4
Absorption |
4
|
0.21
|
0.89
|
1.09
|
1.17
|
1.13
|
1.07
|
1.05
|
|
To
find out more about our acoustical products and services,
contact us at: sales@mcgillairsilence.com Or call us at: 614/829-1200, Fax: 614/829-1488. |
|
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An Enterprise of United McGill Corporation—Founded in 1951 Note: Unless otherwise noted, all registered trademarks (®) and trademarks (™) that appear in this website are the property of United McGill Corporation. |