BS EN 352-8:2020 pdf free.Hearing protectors一Safety requirements Entertainment audio earmuffs.
BS EN 352-8 This document is applicable to entertainment audio earmuffs. It specifies requirements on construction,design, performance, marking and user information relating to the inclusion of the entertainment audio facility. Entertainment audio earmuffs use a wired or wireless system through which audio entertainment can be relayed. They may incorporate a radio receiver set or music player for entertainment or allow audio input from external devices.They also offer the possibility to communicate warning signals or messages. The product standards
impose a limitation on the reproduced sound pressure level at the ear.The entertainment audio signal can be transmitted by radio (broadcast or local plant programmes) or by wire or other communication like Bluetooth.The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 352-1:2020, Hearing protectors一General requirements一Part 1: Earmuffs EN 352-3:2020, Hearing protectors 一General requirements 一Part 3: Earmuffs attached to head protection and/or face protection devices
EN 13819-3:2019, Hearing protectors- Testing 一Part 3: Supplementary acoustic test methods. The equivalent sound output levels of the test samples shall be tested in accordance with the
appropriate procedure from EN 13819-3:2019 (7.4.2, 7.5.1 or 7.6.1) and reported in the test report. The mean value of 16 measurements plus one standard deviation shall not exceed 82 dB(A). In cases where a manufacturer has designed left and right cups in a different way [especially in terms of sound pressure level effective to the ear), neither the mean value of 8 measurements of left cups plus one standard deviation nor the mean value of 8 measurements of right cups plus one standard deviation shall exceed 82 dB(A].The procedure from EN 13819-3:2019, 7.4.2 shall be used. The sound output levels are determined for the FM radio signal defined in EN 13819-3:2019, 7.4.2.1 with one specific signal level.BS EN 352-8 pdf download.