Acoustics. Reference zero for the calibration of audiometric equipment - Preferred test conditions for the determination of reference hearing threshold levels Ingestion-build-48068 2 Loss on ignition at

2 Loss on ignition at 450 °C

BS ISO 13849-2:2012 specifies the procedures and conditions to be followed for the validation of specified safety functions through analysis and testing in accordance with ISO 13849-1

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BS EN 55016-2-4 is useful as it provides guidance on the methods of measurement of disturbances and immunity which can be beneficial for your business

Acoustics. Reference zero for the calibration of audiometric equipment - Preferred test conditions for the determination of reference hearing threshold levels Ingestion-build-48068 2 Loss on ignition at1 Scope This part of ISO 389 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.