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Humidity Test
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After exposure at 60℃±2℃ and 90 to 95% relative humidity for 200 hours, sensitivity to be within ±3dB from initial sensitivity. (The measurement to be done after 2 hours of conditioning at 20℃)
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Temperature Cycle Test
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After exposure at -25℃ for 30 minutes, at 20℃ for 10 minutes, at 70℃ for 30 minutes, at 20℃ for 10 minutes, 5 cycles, sensitivity to be within ±3dB from initial sensitivity. (The measurement to be done after 2 hours of conditioning at 20℃)
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