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Figure 6. Insertion Loss obtained by the ISL earplug for different peak pressure levels of the impulses: 110 dB, 130 dB, 150 dB and 170 dB (A-duration: 2 ms, normal incidence)

Figure 6. Insertion Loss obtained by the ISL earplug for different peak pressure levels of the impulses: 110 dB, 130 dB, 150 dB and 170 dB (A-duration: 2 ms, normal incidence)