Akustik och bullermätning

Kommittébeteckning: SIS/TK 110 (Akustik och buller)
Källa: ISO
Svarsdatum: den 20 okt 2018
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This document specifies methods for calculating monopole source levels by converting radiated noise level values obtained in deep water according to ISO 17208-1, or directly from measurements made in deep water with specific hydrophone geometry. For measurements made in deep water according to ISO 17208-1, a fitted Formula is provided to correct the radiated noise level values obtained in this document to convert source level. The conversion Formulas is derived based on the assumption that the surface is a perfect pressure release boundary.

Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: CEN
Svarsdatum: den 1 nov 2018
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This document describes the type test assessment method for acoustic signals at passenger external doors applying to rolling stock. The following applies to this standard:

— this document refers to acoustical passenger information indicating the release, opening and closing of passenger doors;

— this document is applicable to tonal signals with defined frequency components;

— this document is not applicable to spoken information.

NOTE 1 Acoustic door signals in terms of TSI compliance are defined in EN 16584-2 "Design for PRM use".

NOTE 2 Acoustic doors signals in terms of door system function are described in EN 14752.

Kommittébeteckning: SIS/TK 110 (Akustik och buller)
Källa: CEN
Svarsdatum: den 27 nov 2018
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This document specifies methods of predicting sound exposure levels 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.