HOLDRITE SILENCER NOISE AND VIBRATION ISOLATION SUPPORTS ™
APPENDIX
46
E
HOLDRITE® SILENCER™ ACOUSTICAL TEST DATA EXAMPLE
HOLDRITE Silencer products have been independently lab tested by an ISO-3822 certified lab. 1
3
Other HOLDRITE Silencer application solution data is available upon request.
Change in Sound Pressure Level (+ or -)
Change in Apparent Loudness
3 dB
Just Perceptible
5 dB
Clearly Noticeable
10 dB
Twice (or ½) as Loud
15 dB
Three (or 1/3) x as Loud
PL
The resulting acoustic spectra were analyzed in / octave bands from 80Hz to 10,000 Hz.
Sound Level, dB (re. 0.0002 μbar)
/3 Octave
Background Level
Freq (Hz)
Leq (dB)
Leq (dB)
Leq (dB)
80
28.5
30.0
30.4
100
27.2
35.1
33.7
125
23.3
48.4
44.2
160
16.1
59.0
54.2
Test: noise and vibration isolation
200
12.8
52.5
52.6
250
12.9
49.0
55.9
Application Tested: through-stud penetration
315
12.6
51.1
58.0
400
24.7
53.3
60.9
500
14.3
55.2
62.7
Test 1:HOLDRITE Silencer #261
630
10.6
53.6
64.5
800
11.4
51.6
63.8
1000
8.7
46.1
58.0
1250
10.2
51.9
63.9
1600
13.5
52.1
64.3
2000
7.0
51.9
65.2
2500
6.8
51.2
64.7
3150
7.0
39.5
55.1
4000
6.9
31.2
48.8
5000
8.0
30.3
42.7
6300
8.6
26.0
36.2
8000
9.1
18.7
22.4
10000
9.3
18.8
15.7
dBA
23.8
61.3
73.0
1
AM 20 dB
Four (or 1/4) x as Loud
Test 2: Copper-plated “J” Hook Pipe Size: ½” copper tubing
Wall Type: 2” x 4” wood stud
EX
SPECIFICATIONS AND VIP SERVICES
WATER HEATER ACCESSORIES
FIRESTOP SOLUTIONS
DWV SOLUTIONS
PIPE SUPPORT SOLUTIONS
COMPANY
®
#261 HOLDRITE Silencer “J Hooks”
A comprehensive collection of acoustical data and specification sheets for all HOLDRITE Silencer products is available in the HOLDRITE Silencer Acoustical Submittal Pack and on www.holdrite.com/submittal-packs.
Engineered Solutions
www.holdrite.com
1-800-321-0316
FAX: 760-744-0507