Hearing protection Class 5 tested to AS/NZS 1270. When selected, used and maintained as specified in AS/NZS 1269,these protectors may be used in noise up to 110 dB(A) assuming an 85 dB(A) criterion. A lower criterion may requiera higher protection class. Testing accoring to ANSI S3.19 1974, AS/NZS 1270:2002 and CSAZ94.2-2014 byMichael & Associates, Inc., 2766 W. College Ave, Suite 1, State College, PA USA16801.Frequency,HzMeanattenuation,dBStandarddeviation, dBMean -standarddeviation125 250 500 1000 2000 4000 80005.3 5.4 7.9 5.7 4.2 5.6 8.1SLC 80 ClassHelmet mountedClamping force 11.1 NAu/NZs 127015.9 20.4 26.2 34.8 38.2 34 35.910.6 15 18.3 29.1 34 28.4 27.8Class 526.2Frequency,HzMeanattenuation,dBStandarddeviation, dBMean -standarddeviation125 250 500 1000 2000 4000 80003.4 3.3 3.4 2.3 2.7 2.5 3.9SLC 80 ClassHeadband styleClamping force 11.1 NAS/NZS 127021 24.2 30.1 35.1 37.4 35.8 37.817.6 20.9 26.7 32.8 34.7 33.3 33.9Class 532.1228 2146 - 004 - 18.12.2023