ISO 9613-1 PDF

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 An article in Nature Climate Isk explains how the Centre for Carbon Measurement is working on the measurement challenges surrounding climate change.

ISO 9613-1:1993

Calculation of the absorption of sound by the atmosphere. We are already seeing a faster turnaround of measurement activities with higher accuracy and increased confidence.

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NPL Acoustics: Calculation of absorption of sound by the atmosphere

This useful physics handbook produced in association with the Institute of Physics IoP is an excellent resource for physics students and teachers. General method of calculation. It aims to facilitate the sharing of measurement knowledge and information between NPL scientists and members of jso network, as well as providing a forum for the sharing and exchange of information and advice between members and other measurement experts.

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Measurement Challenges of Climate Change. Canadian Council of Independent Laboratories.


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A ground-breaking new device could help to usher in the long-awaited era of quantum computers. Introduction ISO Part 1 describes the calculation method for absorption of sound by the atmosphere.

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Calculation of absorption of sound by the atmosphere

In optical science and technology, NPL is directing research effort into science areas which are central to communications, healthcare and climate change.

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