BS ISO 362-1:2015 - Measurement of noise emitted by accelerating road vehicles. Engineering method. M and N categories

BS ISO 362-1:2015

Measurement of noise emitted by accelerating road vehicles. Engineering method. M and N categories

Status : Current   Published : January 2015



This part of ISO 362 specifies an engineering method for measuring the noise emitted by road vehicles of categories M and N under typical urban traffic conditions. It excludes vehicles of category L1 and L2, which are covered by ISO 9645, and vehicles of category L3, L4, and L5, which are covered by ISO 362‑2.

The specifications are intended to reproduce the level of noise generated by the principal noise sources during normal driving in urban traffic (see Annex A).

The method is designed to meet the requirements of simplicity as far as they are consistent with reproducibility of results under the operating conditions of the vehicle.

The test method requires an acoustical environment that is obtained only in an extensive open space. Such conditions are usually provided for

  • type approval measurements of a vehicle,

  • measurements at the manufacturing stage, and

  • measurements at official testing stations.


The results obtained by this method give an objective measure of the noise emitted under the specified conditions of test. It is necessary to consider the fact that the subjective appraisal of the noise annoyance of different classes of motor vehicles is not simply related to the indications of a sound measurement system. As annoyance is strongly related to personal human perception, physiological human conditions, culture, and environmental conditions, there is a large variation and it is, therefore, not useful as a parameter to describe a specific vehicle condition.


Spot checks of vehicles chosen at random are rarely made in an ideal acoustical environment. If measurements are carried out on the road in an acoustical environment that does not fulfil the requirements stated in this part of ISO 362, the results obtained can deviate appreciably from the results obtained using the specified conditions.

Standard NumberBS ISO 362-1:2015
TitleMeasurement of noise emitted by accelerating road vehicles. Engineering method. M and N categories
Publication Date31 January 2015
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
ReplacesBS ISO 362-1:2007
Amended ByCorrigendum, April 2017
DescriptorsGear boxes, Noise (environmental), Road vehicles, Acoustic measurement, Motor vehicles, Acceleration, Sound-level meters, Calibration, Sound intensity, Acoustic testing, Testing conditions, Test equipment, Classification systems
Title in FrenchMesurage du bruit émis par les véhicules routiers en accélération. Méthode d’expertise. Catégories M et N
ISBN978 0 580 97684 1
File Size4.582 MB

 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


The faster, easier way to work with standards

Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version

Develop a PAS

Develop a fast-track standardization document in 9-12 months