OSTBERG LPKB 125 B, Directions For Use Manual, Page: 13 / 20

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S O U N D D A T A
LPKB 125 B, 75 l/s 180 Pa LpA LwA tot dB (A) 63 125 250 500 1K 2K 4K 8K
Environment 52 59 27 34 57 51 47 43 36 29
Inlet 68 48 59 62 65 56 51 52 45
Outlet 71 53 60 67 67 63 58 55 48
LPKB 125 B-r, 50 l/s 90 Pa
Environment 40 47 22 28 44 43 39 35 28 25
Inlet 63 43 53 60 57 48 43 42 32
Outlet 66 47 54 64 58 54 49 45 35
LPKB 160 K, 75 l/s 175 Pa
Environment 50 57 26 34 53 52 46 42 36 30
Inlet 69 51 60 65 64 57 54 53 48
Outlet 71 55 62 67 67 62 58 55 48
LPKB 160 K-r, 55 l/s 80 Pa
Environment 41 48 23 28 43 44 37 34 27 25
Inlet 61 43 53 57 56 48 45 41 34
Outlet 64 48 53 61 57 52 49 44 34
LPKB 200 B, 120 l/s 250 Pa
Environment 52 59 26 39 51 57 47 47 40 31
Inlet 72 54 62 66 69 59 58 58 49
Outlet 75 56 62 67 71 64 66 62 51
LPKB 200 B-r, 60 l/s 100 Pa
Environment 38 45 23 32 40 42 35 34 27 26
Inlet 60 46 54 54 55 47 43 40 28
Outlet 62 48 54 57 57 50 51 43 30
LPKB 200 K, 135 l/s 250 Pa
Environment 55 62 30 41 51 61 50 48 43 36
Inlet 74 54 64 64 73 61 59 60 56
Outlet 78 59 65 67 75 68 67 64 58
LPKB 200 K-r, 100 l/s 100 Pa
Environment 44 51 27 40 47 47 40 38 32 27
Inlet 66 50 60 59 62 51 49 50 43
Outlet 68 53 59 62 64 57 57 53 45
The sound data have been compiled by means of sound
measurements methods as follows:
Pressure and drop: SS-ISO 5801.
Determination of acoustic sound level in duct:
SS-EN ISO 5136.
Determination of acoustic sound level in reverberation
room: SS-EN ISO 3741. D E S I G N A T I O N S
LwATot : Total A-weighted sound power level dB(A)
(ref 10 -12 W) = the sum of the sound power level in the
octave ranges.
LwA : A-weighted sound power level in octave range
dB(A)(ref 10 -12 W).
LpA : A-weighted sound pressure level in dB(A) accor-
ding to normed A-weightening correction and relating
to an effective absorption area of 20 m
2 with half sphe-
rical translation at a distance of 3 metres.