 Ideas that wear well.® |
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SparkPlugs®
Attenuation Data
| Tested According to AS/NZS 1270 by Challis & Associates. Note: For full details of methods of selecting a hearing protector, see AS/NZS 1269.3 Hearing protector Class 5 tested to AS/NZS 1270. When selected, used and maintained as specified in AS/NZS 1269.3, this protector may be used in noise up to 110dB(A) assuming an 85dB(A) criterion. A lower criterion may require a higher protector class. |
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| Frequency (Hz) | 125 | 250 | 500 | 1000 | 2000 | 4000 | 8000 | |
| Mean Attenuation (dB) | 30.4 | 32.5 | 33.1 | 33.6 | 36.8 | 44.9 | 48.0 | SLC80 29dB, Class 5 |
| Standard Deviation (dB) | 8.7 | 8.2 | 9.2 | 7.8 | 5.5 | 7.0 | 4.9 | SLC80 29dB, Class 5 |
| Mean Minus Standard Deviation (dB) | 21.7 | 24.3 | 23.9 | 25.8 | 31.3 | 37.9 | 43.1 | SLC80 29dB, Class 5 |