ISO 362-1:2007
Measurement of noise emitted by accelerating road vehicles - Engineering method - Part 1: M and N categories

Standard No.

ISO 362-1:2007

Release Date

2007

Published By

International Organization for Standardization (ISO)

Status

Be replaced

Replace By

ISO 362-1:2007/cor 1:2009

Latest

ISO 362-1:2022

Scope

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 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 only obtained 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. NOTE 1 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. NOTE 2 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 which does not fulfil the requirements stated in this International Standard, the results obtained can deviate appreciably from the results obtained using the specified conditions.

ISO 362-1:2007 Referenced Document

• IEC 60942:2003 Electroacoustics - Sound calibrators
• IEC 61672-1:2002 Electroacoustics - Sound level meters - Part 1: Specifications
• ISO 10844:1994 Acoustics - Specification of test tracks for the purpose of measuring noise emitted by road vehicles
• ISO 1176:1990 Road vehicles; masses; vocabulary and codes
• ISO 2416:1992 Passenger cars; mass distribution

ISO 362-1:2007 history

• 2022 ISO 362-1:2022 Acoustics — Engineering method for measurement of noise emitted by accelerating road vehicles — Part 1: M and N categories
• 2015 ISO 362-1:2015 Measurement of noise emitted by accelerating road vehicles - Engineering method - Part 1: M and N categories
• 2009 ISO 362-1:2007/cor 1:2009 Measurement of noise emitted by accelerating road vehicles - Engineering method - Part 1: M and N categories; Technical Corrigendum 1
• 2007 ISO 362-1:2007 Measurement of noise emitted by accelerating road vehicles - Engineering method - Part 1: M and N categories