ISO Acoustics – Attenuation of Sound During Propagation Outdoors – Part 1: Calculation of the Absorption of Sound by the Atmosphere. Purchase your copy of ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available. You can verify the calculator using some validation data taken from Table 1 of ISO , and calculate attenuation due to atmospheric absorption at a distance.
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The reference ambient atmospheric pressure, is that of the International Standard Atmosphere at mean sea level Measurements of mass, force, pressure, and density are some of the most ios made in the UK. We strive to actively promote public awareness and appreciation of science and technology, particularly the importance of measurement and the role of NPL.
NPL Acoustics: Calculation of absorption of sound by the atmosphere
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The calculator presented here computes the attenuation coefficient according to ISOgiven those four variables. NPL’s Thermal Performance team provides a wide range of measurement facilities for characterising thermophysical properties of materials and the heat transfer within engineering structures. Our factsheets are designed as a isso introduction to a subject that you can read online or download.
Calculation of absorption of sound by the atmosphere
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