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106
SPECIFICATIONS
Sound Pressure Data Cassettes
Model
Test condition
9K
4.6ft(1.4m) from the unit; 3.3ft(1.0m) high from the ground
NC‑15
NC‑20
NC‑25
NC‑30
NC‑35
NC‑40
NC‑45
NC‑50
NC‑55
NC‑60
NC‑65
NC‑70
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
Total octave band sound level(dB:total sound level C)
Octave band center frequency(Hz)
Hi
Med
Lo
Model
Test condition
12K
4.6ft(1.4m) from the unit; 3.3ft(1.0m) high from the ground
NC‑15
NC‑20
NC‑25
NC‑30
NC‑35
NC‑40
NC‑45
NC‑50
NC‑55
NC‑60
NC‑65
NC‑70
10
20
30
40
50
60
70
80
90
63 125 250 500 1k 2k 4k 8k
Total octave band sound level(dB:total sound level C)
Octave band center frequency(Hz)
Hi
Med
Lo
Model
18K
Test condition
4.6ft(1.4m) from the unit; 3.3ft(1.0m) high from the ground
Model
Test condition
24K
4.6ft(1.4m) from the unit; 3.3ft(1.0m) high from the ground
NC‑15
NC‑20
NC‑25
NC‑30
NC‑35
NC‑40
NC‑45
NC‑50
NC‑55
NC‑60
NC‑65
NC‑70
10
20
30
40
50
60
70
80
90
63 125 2k 4k 8k
Total octave band sound level(dB:total sound level C)
250 500 1k
Octave band center frequency(Hz)
Hi
Med
Lo
Med Med
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