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BSI 21/30405769 DC:2021 Edition

BSI 21/30405769 DC:2021 Edition

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BS ISO 5128. Acoustics. Measurement of interior vehicle noise

Published By Publication Date Number of Pages
BSI 2021 41
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This document specifies an engineering method for measuring the interior sound of road vehicles of categories M and N under typical driving conditions. It does not apply to agricultural tractors and field machinery.

It specifies the conditions for obtaining reproducible and comparable measurements of sound pressure levels inside a vehicle.

These measurements are used to obtain a representative average sound level during a typical driving cycle to enable assessment of adverse effects on human health.

The results may be used for

  • standardized assessment of interior sound for comparisons (e.g. benchmark, consumer information programs);

  • verification tests, to decide whether or not the sound inside the vehicle is in accordance to specifications;

  • certification purposes, for example for evaluation of sound in relation to labour or for general health standards;

  • monitoring tests, in order to check that the sound inside the vehicles is still within prescribed limits, and the noticeable changes have not occurred since delivery, or between individual units of a consignment of vehicles.

This document does evaluate the exposure to interior sound of vehicles in a way as it is commonly used for scientific effects on human health.

It does not assess maximum interior sound of a vehicle under extreme driving situations, as the today’s measured maximum sound pressure levels inside vehicles are far away from the risk to create instantaneous hearing damages.

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BSI 21/30405769 DC
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