National Traffic Safety and Environment Laboratory - Examination of Motor Vehicles - Noise Test

National Traffic Safety and Environment Laboratory

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Examination of Motor Vehicles

		Collision Test		Exhaust Emission Tests, Fuel Consumption Tests and Others		Motor Vehicle Brake Systems Test
		Noise Test		Maximum Stable Inclination Angle Test

		Steady and Accelerated Running Noise Level Test

		Noise levels are measured when the motor vehicle is running at a constant speed and when accelerating from a constant speed on the road prescribed in the international standards.

		Proximity Stationary Noise Level Test

		Noise levels are measured at a prescribed position close to the exhaust pipe outlet, when the vehicle is stationary and the engine revolution speed is high in a unloaded.

Noise Test

Independent Administrative Institution National Traffic Safety and Environment Laboratory
7-42-27, Jindaijihigashimachi, Chofu, Tokyo, 182-0012 Japan TEL:+81-422-41-3207

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