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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Calculation of absorption of sound by the atmosphere

Classification system and qualification procedures for type testing of valves. For pure-tones the standard specifies the attenuation 961-31 as a function of frequency, temperature, humidity and pressure.

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NPL’s Biotechnology Group specialises in the measurement of biomolecules and the study of their interactions in solution, at interfaces and inside cells. Please download Chrome or Firefox or view our browser tips.

According to ISO the accuracy of the calculated pure-tone attenuation coefficients for atmospheric absorption is estimated using the following table:. International Slurry Surfacing Association. Our factsheets are designed as a quick introduction to a subject that you can read online or download. 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

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