(A) ANSI S3.19-1974
MRX21A2WS6-NA ANSI S3.19-1974
A:1 Frequency (Hz) (ƒ)
125
250
500 1000 2000 3150 4000 6300 8000 NRR
CSA
Class
A:2 Mean attenuation (dB) (M
f
)
13.8 19.9 28.5 32.6 34.1 37.7 39.3 38.8 39.3
23
A:3 Standard deviation (dB) (s
f
)
2.9
2.2
2.3
2.7
3.2
2.5
2.9
2.4
3.0
A
MRX21P3E2WS6-NA ANSI S3.19-1974
A:1 Frequency (Hz) (ƒ)
125
250
500 1000 2000 3150 4000 6300 8000 NRR
CSA
Class
A:2 Mean attenuation (dB) (M
f
)
15.4 19.8 29.5 33.3 34.9 37.0 39.0 38.3 38.5
24
A:3 Standard deviation (dB) (s
f
)
1.9
2.8
2.3
2.6
2.9
2.9
3.8
4.6
5.4
A
