Idiomas disponibles
Idiomas disponibles
NOISE REDUCTION RATING (NRR)
PRO-PROTECT HEARING PROTECTION
26
Model 90545-SIOC
ATTENUATION DATA | 3M PRO-PROTECT WITH GEL SEALING RINGS
TEST FREQUENCIES (HZ)
Mean Attenuation (dB)
Standard Deviation
25
ATTENUATION DATA | 3M PRO-PROTECT WITH STANDARD SEALING RINGS ON HARD HAT
TEST FREQUENCIES (HZ)
Mean Attenuation (dB)
Standard Deviation
The EPA references to Federal relate to US Federal laws.
125
250
500
1000 2000 3150 4000 6300 8000 NRR CSA Class
18.8
21.8
31.0
38.0
2.8
1.9
3.0
3.3
Model 90545
The EPA references to Federal relate to US Federal laws.
125
250
500
1000 2000 3150 4000 6300 8000 NRR CSA Class
16.7
21.2
30.4
36.8
2.3
2.0
3.0
2.1
35.5
40.5
43.2
43.0
3.1
3.8
4.0
2.6
31.7
37.9
39.6
40.0
2.6
3.0
3.6
4.4
ANSI S3.19-1974
42.9
26
A
2.2
ANSI S3.19-1974
38.8
25
B
3.2
English 27
Capítulos
