ISO 10534 Acoustics — Determination of acoustic properties in impedance tubes — Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance
ISO 10844 Acoustics — Specification of test tracks for measuring sound emitted by road vehicles and their tyres
TCVN 6785 Road vehicles - The emission of pollutants emitted from automobiles according to engines fuel requirements - Requirements and test methods in type approval
TCVN 7880-2016 history
2016TCVN 7880-2016 Road vehicles - Noises emitted fromautomobiles - Requirements and test methods in type approval
2008TCVN 7880-2008 Road vehicles.Noises emitted from automobiles.Requirements and test methods in type approval