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Normas DIN – AENOR
DIN EN ISO 17201-4:2004-10

DIN EN ISO 17201-4:2004-10

Acoustics - Noise from shooting ranges - Part 4: Prediction of projectile noise (ISO/DIS 17201-4:2004); German version prEN ISO 17201-4:2004

Acoustique - Bruit des stands de tir - Partie 4: Estimation du bruit du projectile (ISO/DIS 17201-4:2004); Version allemande prEN ISO 17201-4:2004

Akustik - Geräusche von Schießplätzen - Teil 4: Abschätzung des Geschossknalls (ISO/DIS 17201-4:2004); Deutsche Fassung prEN ISO 17201-4:2004

Fecha Anulación:
2016-07 /Withdrawn
Equivalencias internacionales:

ISO/DIS 17201-4 (2004-08)

prEN ISO 17201-4 (2004-08)

Relación con otras normas DIN:

Reemplazada por: DIN EN ISO 17201-4:2006-07

Shooting sound consists in general of three components: muzzle sound, impact sound, and projectile sound. This standard solely deals with projectile sound which only occurs if the projectile moves with supersonic speed. This standard specifies a method to calculate the source sound exposure level of projectile sound. Also this standard gives guidelines for calculating the propagation of projectile sound as far as it deviates from the propagation of other sound sources. The projectile sound is obtained by a calculation method instead of a measurement method, because a measurement method would be very complicated due to the non-linear behaviour of the sound propagation close to the projectile trajectory and due to the large number of parameters that determine the sound exposure level of projectile sound. Projectile sound is described as originating from a certain point on the projectile trajectory, the source point. The source level is calculated from the geometric properties and the speed of the projectile along the trajectory. As a result of non-linear effects, the frequency content of the projectile sound exposure depends on the distance from the source point. This is taken into account. Guidance is given how the sound exposure level can be calculated from the source level, geometrical attenuation, attenuation due to the non- linear effects, atmospheric absorption, and the excess attenuation due to ground reflections and atmospheric refraction. Also the effects on the sound exposure level of the decrease of the projectile speed and of atmospheric turbulence are taken into account.
Acoustic shocks, Acoustics, Assessment, Definitions, Mathematical calculations, Measurement, Measuring techniques, Noise emissions, Noise levels, Pistols, Planning, Rifle ranges, Rifles, Shooting, Shooting ranges, Shooting-grounds, Small arms, Sound energy, Sound pressure level, Sound propagation, Supersonic velocity, Wear-quantity
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