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U.S. Department of Health and Human Services

Recognized Consensus Standards: Medical Devices
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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 036 Date of Entry 07/09/2014 
FR Recognition Number 4-177
Standard
ANSI ASA  S12.65-2006 (Reaffirmed 2025)
American National Standard For Rating Noise with Respect to Speech Interference
Scope/Abstract
This standard defines a simple numerical method for rating the expected speech-interfering aspects of noise using acoustical measurements of the noise. The relevant acoustical characteristics of the noise are summarized in terms of a single-valued index known as the speech interference level. The application of the measure is intended for natural speech.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§874.3300 Hearing Aid, Air-Conduction, Prescription Class 1 ESD
§874.3302 Hearing Aid, Bone Conduction Class 2 LXB
§874.3302 Hearing Aid, Bone Conduction, Implanted Class 2 MAH
§874.3950 Hearing Aid, Air Conduction, Transcutaneous System Class 2 NIX
N/A Implant, Cochlear Class 3 MCM
N/A Implant, Auditory Brainstem Class 3 MHE
N/A Implant, Hearing, Active, Middle Ear, Partially Implanted Class 3 MPV
Relevant FDA Guidance and/or Supportive Publications*
Guidance for Industry: Noise Claims in Hearing Aid Labeling, issued October 1998.

Appropriate Use of Voluntary Consensus Standards in Premarket Submissions for Medical Devices - Guidance for Industry and Food and Drug Administration Staff, issued September 2018.
FDA Technical Contacts
 Vasant Dasika
  FDA/OC/CDRH/OPEQ/OHTI/DHTIB/
  301-796-5365
  Vasant.Dasika@fda.hhs.gov
 Lindsay DeVries
  FDA/OC/CDRH/OPEQ/OHTI/DHTIB/
  240-402-1462
  Lindsay.DeVries@fda.hhs.gov
 Julie Cohen
  FDA/OC/CDRH/OPEQ/OHTI/DHTIB/
  301-796-0772
  Julie.Cohen@fda.hhs.gov
Standards Development Organizations
ANSI American National Standards Institute https://www.ansi.org/
ASA Acoustical Society of America http://acousticalsociety.org/
FDA Specialty Task Group (STG)
Dental/ENT
*These are provided as examples and others may be applicable.
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