What are hearing protection standards in Australia and New Zealand?
Hearing protection in Australia and New Zealand is tested using the AS/NZS 1270:2002 standard, which determines a Sound Level Conversion (SLC80) rating. This rating is calculated in a lab by measuring how much noise is reduced by a hearing protector and is used to assign it a protection Class (1-5), with higher numbers indicating more protection. Products are labeled with this rating and class, which helps users select the appropriate protector for their workplace noise exposure.
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