Acoustics. Reference zero for the calibration of audiometric equipment - Preferred test conditions for the determination of reference hearing threshold levels Ingestion-build-48068 ISO 155 is applicable to:

ISO 155 is applicable to:

BS 4C 14 specifies the basic dimensions and access clearance for aircraft pressure refuelling connections

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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

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Acoustics. Reference zero for the calibration of audiometric equipment - Preferred test conditions for the determination of reference hearing threshold levels Ingestion-build-48068 ISO 155 is applicable to:1 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.