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ÖNORM EN ISO 17201-4:2006-07

Действует
Acoustics - Noise from shooting ranges - Part 4: Prediction of projectile sound (ISO 17201-4:2006)
This part of ISO 17201 provides a computational model for determining the acoustical source level of
projectile sound and its one-third-octave-band spectrum, expressed as the sound exposure level for nominal
mid-band frequencies from 12,5 Hz to 10 kHz. It also gives guidance on how to use this source level to
calculate the sound exposure level at a receiver position.
This part of ISO 17201 is intended for calibres of less than 20 mm, but can also be applied for large calibres.
Additionally, the data can be used to compare sound emission from different types of ammunition used with
the same weapon. This part of ISO 17201 is meant for weapons used in civil shooting ranges, but is also
applicable to military weapons.
The computational method can be used as a basis for environmental noise assessment studies. The
prediction method applies to outdoor conditions, straight projectile trajectories, and streamlined projectile
shapes. Because of the latter, it cannot be applied to pellets. Default values of parameters used in this part of
ISO 17201 are given for a temperature of 10 °C, 80 % relative humidity, and a pressure of 1 013 hPa.
Annex A can be used for calculations in other atmospheric conditions. Particularly for calibres < 20 mm, the
spectrum is dominated by high frequency components. As air absorption is rather high for these frequency
components, calculations are performed in one-third-octave-bands, in order to allow a more accurate result for
air absorption to be obtained.
Zweck dieser ÖNORM ist es, ein Rechenmodell zur Bestimmung des Schallpegels des Geschossknalls und dessen Terzspektrum, ausgedrückt als Schallexpositionspegel für Bandmittenfrequenzen von 12,5 Hz bis 10 kHz, bereit zu stellen. Diese Norm ist für Kaliber unter 20 mm bestimmt, sie kann jedoch auch bei großen Kalibern angewendet werden. Außerdem können die Daten genutzt werden, um die Schallemission unterschiedlicher Munitionsarten zu vergleichen, die in derselben Waffe verwendet werden. Diese Norm ist für Waffen vorgesehen, die auf zivilen Schießplätzen eingesetzt werden, sie kann jedoch auch auf Militärwaffen angewendet werden.
ICS
95.020 Military engineering. Military affairs. Weapons / Военная техника. Военные вопросы. Вооружение
97.220.10 Sports. Including swimming-pools, spas, solaria, sports fields, running-tracks, spectator facilities for sports, etc. / Спортивные сооружения. Включая плавательные бассейны, минеральные источники, солярии, спортивные площадки, беговые дорожки и т.д.
17.140.20 Noise emitted by machines and equipment / Шум от машин и оборудования