Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-117251 The factory production control (FPC)
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Description
The factory production control (FPC) section for slurry surfacings is updated
Andrew Bond and Peter Watt
As a user of BS 5452
This part of IEC 62351
This also does not provide an efficacy-evaluation method for an anti-fouling system using a specific substance
Hearing aids - Specification for dimensions of the nipple and sealing device for insert earphones Ingestion-build-117251 The factory production control (FPC)1 Scope This standard is applicable to insert earphones which can be fitted to an earmould inserted into the ear canal.
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