DASM Sound Absorption Testing for Noise Barriers According to ISO 354:2024 & EN ISO 11654:1997

DASM recently conducted material testing for noise barrier sound absorption in a reverberation room according to ISO 354:2024 and EN ISO 11654:1997 standards at a VILAS-certified acoustics laboratory.

DASM acoustics laboratory performs measurement and material testing for the sound absorption of Noise Barrier systems.

Amidst increasingly stringent noise control requirements in transportation projects, industrial zones, and technical infrastructure, accurately evaluating the sound absorption capacity of noise control materials plays an exceptionally important role. And when it comes to acoustical testing services, DASM is currently a leading reputable unit.

Recently, DASM deployed sound absorption testing for the Noise Barrier panel system of a technical infrastructure manufacturer and contractor in Ho Chi Minh City – in accordance with international acoustic standards.

Specifically, the test was carried out in a Reverberation Room to determine the sound absorption coefficient of the material according to ISO 354:2024. At the same time, the measurement results are used to classify the sound absorption capacity according to EN ISO 11654:1997 – a popular international standard in the field of building acoustics materials.

Measuring the sound absorption coefficient in a reverberation room according to international standards

Unlike subjective evaluation methods or simple acoustic tests, acoustic measurement – determining sound absorption capacity in a reverberation room requires a standard test environment along with high-precision acoustic testing equipment systems. Therefore, the entire testing process at DASM is implemented under a strict control procedure to ensure objectivity, repeatability, and reliability of measurement results.

During the material testing process, the Noise Barrier panel was installed in a reverberation room in strict accordance with the requirements of the international standard ISO 354:2024 to evaluate the sound energy absorption capacity at various frequency bands. Through this, acoustic engineers can determine the average sound absorption coefficient, while evaluating the effectiveness of sound reflection control and noise reduction of the material under practical conditions, determining whether sound absorbing material or sound insulation is better.

In addition, the simultaneous application of ISO 354:2024 and EN ISO 11654:1997 helps the test results have consistency, meeting technical requirements in the research, production, acceptance, and publication of acoustic material parameters.

DASM – A VILAS-certified acoustics laboratory in Vietnam

The entire material testing procedure for measuring the sound absorption coefficient is performed at the VILAS-certified DASM acoustics laboratory with specialized equipment systems serving measurement and testing for building acoustics, sound absorption materials, and noise control solutions.

Focusing not only on measurement accuracy, DASM also emphasizes building testing procedures according to international standards to meet the technical requirements of material manufacturing enterprises, design consulting units, construction contractors, and large-scale technical infrastructure projects.

Thanks to professional capacity and a standard lab system, DASM is currently one of the pioneer units in the field of acoustic measurement and testing in Vietnam, especially for tests related to sound absorption materials, sound insulation materials, and construction noise control systems.

Some prominent acoustic services of the DASM institute include: 

+ Acoustic testing

+ Noise survey and assessment

+ Acoustic consulting and design

+ Sound design and simulation

+ Noise and vibration control

+ Material design and improvement consulting

Customers wishing to conduct acoustic measurement and testing or book acoustic services at DASM, please contact the hotline 0968 018 216 for specific consultation.