ASA Standards is pleased to announce we have reaffirmed twelve (12) American National Standards, ensuring their continued accuracy and reliability across key areas of acoustics. While no technical changes have been made, these standards remain essential resources for professionals working in Mechanical Vibration and Shock (S2), Bioacoustics (S3), and Noise (S12). They are now available for purchase through our ASA Standards Webstore.
ASA Standards offers opportunities for professionals to get involved in the development and review of American National Standards. Whether you’re interested in joining a committee, participating in reviews, or proposing new standards, we can provide resources and guidance to support your contributions. Learn more about membership and how you can make an impact by visiting our membership page.
Mechanical Vibration and Shock (S2)
- ASA/ANSI S2.20-1983 (R2025), Estimating Air Blast Characteristics for Single Point Explosions in Air, with a Guide to Evaluation of Atmospheric Propagation and Effects
- ASA/ANSI S2.21-1998 (R2025), Method for Preparation of a Standard Material for Dynamic Mechanical Measurements
- ASA/ANSI S2.22-1998 (R2025), Resonance Method for Measuring the Dynamic Mechanical Properties of Viscoelastic Materials
- ASA/ANSI S2.23-1998 (R2025), Single Cantilever Beam Method for Measuring the Dynamic Mechanical Properties of Viscoelastic Materials
- ASA/ANSI S2.24-2001 (R2025), Graphical Presentation of the Complex Modulus of Viscoelastic Materials
Bioacoustics (S3)
- ASA/ANSI S3.20-2015 (R2025), Bioacoustical Terminology
- ASA/ANSI S3.37-1987 (R2025), Preferred Earhook Nozzle Thread for Postauricular Hearing Aids
- ASA/ANSI S3.39-1987 (R2025), Specifications for Instruments to Measure Aural Acoustic Impedance and Admittance (Aural Acoustic Immittance)
- ASA/ANSI S3.41-2015 (R2025), Audible Emergency Evacuation (E2) and Evacuation Signals with Relocation Instructions (ESRI)
- ASA/ANSI S3.42-1992/Part 1 (R2025), Testing Hearing Aids with a Broad-Band Noise Signal
Noise (S12)
- ASA/ANSI S12.43-1997 (R2025), Methods for Measurement of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions
- ASA/ANSI S12.44-1997 (R2025), Methods for Calculation of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions from Sound Power Level
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