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SR EN ISO 3381:2021

Railway applications - Acoustics - Noise measurement inside railbound vehicles (ISO 3381:2021)

This document specifies the measurement method and conditions to obtain reproducible noise levels on-board all kinds of vehicles operating on rails or other types of fixed track, hereinafter conventionally called “unit”, except for track maintenance vehicles in working modes. This document is applicable to type testing. It does not include all the instructions to carry out monitoring testing or evaluation of noise exposure of passengers or drivers over a whole journey. This document is not applicable to guided buses. It provides measurement procedures for vehicle interior noise (in general, a vehicle type test is carried out using only a selected subset of these tests): —    when the vehicle is moving at constant speed; —    when the vehicle is stationary; —    when the vehicle is accelerating or decelerating; —    in the driver's cab when an external warning horn is sounding (specifically required for European Union regulation application) It does not provide measurement procedures for: —    audibility or intelligibility of any audible signals; —    assessment of warning devi

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Status : Valid
Approval date : 10/29/2021
Number of pages : 50
ICS : 17.140.30 Noise emitted by means of transport,45.020 Railway engineering in general
Technical Committee : 146 - Railway applications

Relations with other standards: