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ASA

PDF Standards ASA S12.9-1992/Part 2 (R2018)

American National Standard Quantities and Procedures for Description and Measurement of Outdoor Environmental Sound – Part 2: Measurement of Long-Term, Wide-Area Sound
standard by American National Standards of the Acoustical Society of America, 01/01/1992

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ASA

PDF Standards ASA S12.9-2013 / Part 3 (R2018)

American National Standard Quantities and Procedures for Description and Measurement of Environmental Sound – Part 3: Short-term Measurements with an Observer Present
standard by American National Standards of the Acoustical Society of America, 01/15/2013

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ASA

PDF Standards ASA S12.42-2010 (R2020)

American National Standard for Methods for the Measurement of Insertion Loss of Hearing Protection Devices in Continuous or Impulsive Noise Using Microphone-in-Real-Ear or Acoustic Test Fixture Procedures.
standard by American National Standards of the Acoustical Society of America, 01/11/2010

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