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| | | Mexico, CENAM (Centro Nacional de Metrologia) | | | Complete CMCs in Acoustics, Ultrasound, Vibration for Mexico (.PDF file)
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| Bone-conduction response level. Audiometers. Measurand unit, dB HL (reference: threshold of hearing) | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in dB: 0.4 | | IEC60645-1 | | Frequency: 125 Hz to 4 kHz | | Internal NMI service identifier: CENAM/510-F016-001 |
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