GB/T 40625-2021 Active National standards

GB/T 40625-2021 Indoor measurement methods for noise emitted by accelerating motor vehicles

GB/T 40625-2021 Indoor measurement methods for noise emitted by accelerating motor vehicles

Publish Date: 2021-10-11 Implement Date: 2022-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 40625-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Baseline standards and general methods

ICS Name: Comprehensive Road Vehicles

Publish Date: 2021-10-11

Implement Date: 2022-05-01

Pages: 55 pages

Scope

This document specifies the indoor measurement method for the external noise of cars during acceleration - the requirements for calculating vehicle acceleration using the engineering method, measurement instruments, laboratory requirements, chassis dynamometer requirements, measurement procedures, testing methods, and test reports.
This document is applicable to M and N-class cars.

Development Information

Word Count: 108 Thousand words Pages: 55 pages

Referenced Standards

GB/T 6882-2016 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Precision methods for anechoic rooms and hemi-anechoic rooms GB/T 15173-2010 Electroacoustics—Sound calibrators GB/T 22157-2018 Acoustics—Specification of test tracks for measuring noise emitted by road vehicles and their tyres GB/T 3730.2-1996 Road vehicle—Masses—Vocabulary and codes GB/T 3785.1-2010 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3785.1-2023 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3785.3-2018 Electroacoustics—Sound level meters—Part 3:Periodic tests GB/T 5910-1998 Passenger car—Mass distribution GB/T 15089-2001 Classification of power-driven vehicles and trailers GB/T 17692-1999 Measurement methods of net power for automotive engines GB/T 17692-2024 Measurement methods of net power for automotive engines and drive motor GB/T 34828-2017 Acoustics—Test methods for the qualification of free-field environments

Adopt standards

ISO 362-3:2016

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