MPANLMotorola Paintball Association National League (UK)
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If the ambient noise exceeds ANSI S3.1-1999 maximum permissible ambient noise levels (MPANLs), the tone is not presented and the patient is instructed to either wait until the room is quiet or move to a quieter location.
We applied MPANLs for audiometric test rooms [46] to the treatment unit for the purposes of COMP-VA.
MPANLs for DPOAE testing using an insert probe with sufficient averaging were estimated to be [greater than or equal to] 55 dBA for frequencies 2,000 to 6,000 Hz [47], which easily exceeds the ambient noise levels on the hospital ward [44-45].