Idiomas disponibles
Idiomas disponibles
NOISE REDUCTION RATING (NRR)
PRO-COMMS ELECTRONIC HEARING PROTECTION
25
Model 90546-SIOC
The EPA references to Federal relate to US Federal laws.
ATTENUATION DATA | 3M PRO-COMMS HEARING PROTECTOR WITH GEL SEALING RINGS ON HARD HAT ANSI S3.19-1974
TEST FREQUENCIES (HZ)
Mean Attenuation (dB)
Standard Deviation
30 English
125
250
500
1000 2000 3150 4000 6300 8000 NRR CSA Class
19.2
20.5
30.1
37.1
3.1
1.8
2.9
3.5
33.2
40.3
42.8
43.5
2.5
4.2
4.3
3.2
42.6
25
A
3.3
Capítulos
