Friedrich FPHMR18A3A Service Manual page 26

Sound Pressure Data Cassettes
36K
Model
Test condition 4.6ft(1.4m) from the unit; 3.3ft(1.0m) high from the ground
90
80
70
60
Med
50
40
30
20
10
250
63 125
Octave band center frequency(Hz)
26
SPECIFICATIONS
Hi
Lo
500 1k
2k 4k
NC-70
NC-65
NC-60
NC-55
NC-50
NC-45
NC-40
NC-35
NC-30
NC-25
NC-20
NC-15
8k