National Standard TCVN 7880:2016 on Road vehicles - Noise emitted by motor vehicles - Requirements and test methods in type approval

1. Scope of application

This standard specifies the requirements and test methods for noise in type approval emitted by motor vehicles with at least four wheels (motor vehicles hereinafter referred to as vehicles).

2. Normative references

The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

TCVN 6785, Road vehicles – Pollutant emissions from automobiles according to fuel used for the engine – Requirements and test methods in type approval.

IEC 651, Sound level meters.

IEC 942, Sound calibrators.

ISO 10534, Acoustics – Determination of sound absorption coefficient and impedance in impedance tubes.

ISO 10844, Acoustics – Specification of test track for the purpose of measuring noise emitted by road vehicles.

ECE 85, Uniform provisions concerning the approval of internal combustion engine intended for the motor vehicles of categories M and N with regard to the measurement of the net power.