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| | | Mexico, CENAM (Centro Nacional de Metrologia) | | | Complete CMCs in Acoustics, Ultrasound, Vibration for Mexico (.PDF file)
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| Sound pressure response level. Sound level meters. Measurand unit, dB (reference: 20 µPa) | | Absolute expanded uncertainty (k = 2, level of confidence 95%) in dB: 0.3 | | Comparison IEC651 and IEC804 | | Frequency: 250 Hz to 1 kHz | | Internal NMI service identifier: CENAM/510-F015-001 |
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