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Description
3M Banded Hearing Protection Series
The classification of Hearing Protectors in Australia under AS/NZS1270:2002 relies on their performance in a subject fit real – ear attenuation test.
The outcome of this test is an SLC80 value, used to determine the Class of the hearing protector. The SLC80 (Sound Level Conversion) is a single number rating commonly used in Australia and New Zealand to compare the acoustic performance of hearing protectors.
The subscript 80 indicates that in well-managed hearing protector programs, the protection provided is expected to equal or exceed the SLC80 in 80% of protector-wearer noise spectrum combinations.
AS/NZS Class: Class 1, Class 2, Class 3, Class 4, Class 5
Exposure Levels:
- 85 < 90dB
- 90 < 95dB
- 95 < 100dB
- 100 < 105dB
- 105 < 110dB
- > 110dB (LA eq 8hr)
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