Acoustics. Measurement of interior vehicle noise
Acoustics. Measurement of interior vehicle noise
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1 Scope 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 can 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 with specifications,
— regulatory purposes, for example for evaluation of sound in relation to labour or for general health standards, and
— monitoring tests, in order to check that the sound inside the vehicles has not changed 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.
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