What is EN ISO 388922015?

The EN ISO 3889-2:2015 is a technical standard that provides guidelines and specifications for the measurement of airborne noise emitted by road vehicles. This article aims to explain the key aspects of this standard in a simplified manner.

What is EN ISO 3889-2:2015?

The EN ISO 3889-2:2015 standard determines the method for measuring the exterior noise generated by road vehicles, including cars, motorcycles, and trucks. It sets specific rules for the testing conditions and procedures to ensure accurate and consistent results.

This standard helps evaluate the noise generated by vehicles during different driving conditions like acceleration, deceleration, cruising, and idling. The measurements are taken at several specified points around the vehicle to assess its overall noise emission.

Why is it important?

Road traffic noise has become a significant environmental issue, affecting both urban and rural areas. Excessive noise can lead to annoyance, sleep disturbances, and even adverse health effects on people living near busy roads.

The EN ISO 3889-2:2015 standard plays a vital role in establishing limits and regulations for vehicle noise emissions. These limits help protect public health and improve the overall soundscape of society. It also encourages automobile manufacturers to develop quieter vehicles by setting benchmarks for acceptable noise levels.

Complying with this standard ensures that vehicles meet the recommended noise limits, reducing the impact on the environment and the community. It allows policymakers to enforce noise regulations and provides consumers with information about the acoustic performance of different vehicles.

Principles of EN ISO 3889-2:2015

The EN ISO 3889-2:2015 standard focuses on various aspects of vehicle noise measurement. It stipulates the positioning of microphones around the vehicle, the distance at which measurements are taken, and the calculation methods to determine noise levels.

It also provides guidelines for test site preparation, including background noise level measurements to ensure accurate results. The standard specifies techniques to minimize the impact of external factors, such as wind and ambient temperature, during the testing process.

This standard emphasizes the importance of precise instrumentation and calibration to maintain consistency in noise measurement. It outlines the requirements for calibrating the microphones, ensuring their accuracy and reliability.

In conclusion, the EN ISO 3889-2:2015 standard is crucial for regulating vehicle noise emissions. By following this standard, we can create a healthier and quieter environment for everyone.