This document specifies methods of predicting the sound exposure level of shooting sound for a single shot at a given reception point. Guidelines are given to calculate other acoustic indices from the sound exposure level. The prediction is based on the angular source energy distribution of the muzzle blast as defined in ISO 17201-1 or calculated using values from ISO 17201-2. This document applies to weapons with calibres of less than 20 mm or explosive charges of less than 50 g TNT equivalent, at distances where peak pressures, including the contribution from projectile sound, are less than 1 kPa (154 dB). NOTE National or other regulations, which could be more stringent, can apply.
Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).
Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Source modelling
4.1 General
4.2 Muzzle blast
4.3 Projectile sound
5 Propagation calculation
5.1 General
5.2 Application of ISO 9613-2 for free-field situations
5.3 Application of ISO 9613-2 for non-free-field situations
5.4 Sophisticated models
6 Conversion of sound exposure levels
7 Uncertainties
Annex A Benchmark cases for shooting sheds with baffles (normative)
Annex B Sophisticated modelling approaches (informative)
Annex C Modelling of shooting scenarios — Examples of shooting ranges (informative)
ISO 17201-1:2018 Acoustics -- Noise from shooting ranges -- Part 1: Determination of muzzle blast by measurement
ISO 9613-2:1996 Acoustics -- Attenuation of sound during propagation outdoors -- Part 2: General method of calculation
ISO/IEC Guide 98-3:2008 Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
ISO 17201-1:2018 Acoustics -- Noise from shooting ranges -- Part 1: Determination of muzzle blast by measurement
ISO 9613-2:1996 Acoustics -- Attenuation of sound during propagation outdoors -- Part 2: General method of calculation
ISO/IEC Guide 98-3:2008 Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)