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Acoustics — Attenuation of sound during propagation outdoors — Part 1: Calculation of the absorption of sound by the atmosphere
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2000-03-16

American National Standard for Acoustics - Attenuation of sound during propagation outdoors - Part 2: General method of calculation
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2012-09-05

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1998-03-18

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Attenuation of sound during propagation outdoors - Part 2: General method of calculation (ISO 9613-2:1996)
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