Hearing Protection EN standards Abbreviations for protection values with explanations SNR Single Number Rating/average protection capacity f/Hz Frequency given as a unit of Hertz (MA) Mean Attenuation Mean attenuation (SD) Standard Deviation (APV) Assumed Protection Value Assumed protection value HML value H: Attenuation value at high frequencies M: Attenuation value at medium frequencies L: Attenuation value at low frequencies Tests and standards All uvex hearing protection products comply with the requirements of current EU legislation, including the PPE regulation (EU) 2016/425, which ensures CE conformity. The products have been tested in accordance with the applicable European standards and additional international standards. As category III products, they are subject to Module D inspections by a notified body, as indicated by the code printed on the product after the CE mark. Continuous quality assurance with ISO 9001/2015,I ISO 14001:2015 ISO 45001. Applicable DIN EN norms are: • EN 352: Part 1 Earmuffs • EN 352: Part 2 Ear plugs • EN 352: Part 3 Earmuffs attached to a safety helmet • EN 352: Part 4 Level-dependent hearing protection earmuffs • EN 352: Part 6 Earmuffs with communication equipment • EN 352: Part 8 Audio earmuffs for entertainment 85
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