Protections auditives - Arceau antibruit

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Description

SNR : 21 dB H : 25 M : 17 L : 15 Hz Fréquence 125 250 500 1000 2000 4000 8000 dB Affaiblissement 21.9 20.4 20.5 23.1 32.1 41.0 38.6 dB Ecart type 6.5 6.2 7.4 5.5 5.3 7.5 8.7   Protection effective 15.4 14.2 13.1 17.6 26.8 33.5 29.9

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