Accredited standards committees regularly review existing American National Standards through the reaffirmation process to ensure they remain accurate, relevant, and aligned with current industry practices. This process confirms that standards continue to serve as reliable references without needing immediate revisions.
Recently, several committees have completed reaffirmations, signaling the continued validity and trustworthiness of their standards. These reaffirmations help maintain stability in industries, support regulatory compliance, and promote alignment with evolving technologies and international practices.
By reaffirming standards regularly, committees demonstrate their commitment to quality and ongoing relevance. While reaffirmation keeps standards current as-is, committees remain vigilant and ready to update standards as necessary to reflect future advances and stakeholder needs.
See below for the newest list of reaffirmed standards, or click here to visit our catalog.
- ASA/ANSI S1.6-2016 (R2025), Preferred Frequencies and Filter Band Center Frequencies for Acoustical Measurements
- ASA/ANSI S1.8-2016 (R2025), Reference Values for Levels Used in Acoustics and Vibrations
ASC S2, Mechanical Vibration and Shock
- ASA/ANSI S2.4-1976 (R2025), Method for Specifying the Characteristics of Auxiliary Analog Equipment for Shock and Vibration Measurements
- ASA/ANSI S2.8-2007 (R2025), Technical Information Used for Resilient Mounting Applications
- ASA/ANSI S2.26-2001 (R2025), Vibration Testing Requirements and Acceptance Criteria for Shipboard Equipment
- ASA/ANSI S3.2-2020 (R2025), Methods for the Field Measurement of the Sound Output of Audible Public Warning Devices Installed at Fixed Locations Outdoors
- ASA/ANSI S3.42-2012/Part 2 / IEC 60118-15:2012 (R2025), Testing Hearing Aids – Part 2: Methods for characterizing signal processing in hearing aids with a speech-like signal (a nationally adopted international standard)
- ASA/ANSI S3.44-2016/Part 1 / ISO 1999:2013 (MOD) (R2025), Acoustics – Estimation of Noise-induced Hearing Loss – Part 1: Method for Calculating Expected Noise-induced Permanent Threshold Shift (a modified nationally adopted international standard)
- ASA/ANSI S12.6-2016 (R2025), Methods for Measuring the Real-ear Attenuation of Hearing Protectors
- ASA/ANSI S12.9-2016/Part 7 (R2025), Quantities and Procedures for Description and Measurement of Environmental Sound – Part 7: Measurement of Low-frequency Noise and Infrasound Outdoors in the Presence of Wind and Indoors in Occupied Spaces
- ASA/ANSI S12.19-1996 (R2025), Measurement of Occupational Noise Exposure
- ASA/ANSI S12.23-1989 (R2025), Method for the Designation of Sound Power Emitted by Machinery and Equipment
- ASA/ANSI S12.51-2012/ISO 3741-2010 (R2025), Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Precision methods for reverberation test rooms (a nationally adopted international standard)
- ASA/ANSIS12.53-2011/Part 1/ISO 3743-1:2010 (R2025), Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for small, movable sources in reverberant fields – Part 1: Comparison method for a hard-walled test room (a nationally adopted international standard)
- ASA/ANSI S12.54-2011/ISO 3744-2010 (R2025), Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering methods for an essentially free field over a reflecting plane (a nationally adopted international standard)
- ASA/ANSI S12.56/ISO 3746 (R2025), Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Survey method using an enveloping measurement surface over a reflecting plane (a nationally adopted international standard)
- ASA/ANSI S12.57-2011/ISO 3747-2010 (R2025), Acoustics – Determination of sound power levels and sound energy levels of noise sources using sound pressure – Engineering/survey methods for use in situ in a reverberant environment (a nationally adopted international standard)
- ASA/ANSI S12.65-2006 (R2025), Rating Noise with Respect to Speech Interference
- ANSI/ASA S12.67-2008 (R2025), Pre-Installation Airborne Sound Measurements and Acceptance Criteria of Shipboard Equipment
- ASA/ANSI S12.68-2007 (R2025), Methods of Estimating Effective A-Weighted Sound Pressure Levels When Hearing Protectors Are Worn
- ASA/ANSI S12.69-2010 (R2025), Procedure for Testing Railroad Horns ex situ
- ASA/ANSI S12.70-2016 (R2025), Criteria for Evaluating Speech Privacy in Healthcare Facilities
- ASA/ANSI S12.72-2015 (R2025), Procedure for Measuring the Ambient Noise Level in a Room
- ASA/ANSI S12.75-2012 (R2025), Methods for the Measurement of Noise Emissions from High Performance Military Jet Aircraft
- ASA/ANSI S12.76-2017 (R2025), Methods for Measurement of Supersonic Jet Noise from Uninstalled Military Aircraft Engines
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