Sensear smartPlug, Руководство пользователя

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DOC00071 smartPlug™ Manual rev 02
20
NRR AND SLC80
The smartPlug™ has been certified to international hearing
protection standards including EN352-2, EN352-7, ANSI S3.19- 1974,
ANSI 12.6-2008, and AS/NZS 1270-2002. The following passive
attenuation ratings were observed:
PASSIVE ATTENUATION (ANSI S3.19 – 1974)
smartPlug™ measured in accordance with ANSI S3.19-1974.
Foam tips (SML, MED, LRG)
Frequency (Hz) 12 250 50 1000 2000 3150 4000 6300 8000 NRR
Mean
attenuation(dB)
38. 35. 40. 39.6 40.7 42.9 40.9 44.5 45.8
31dB
Standard
deviation(dB)
4. 2.8 3. 4.2 3.8 3.5 2.9 4.4 3.9
En
glis
h