DASM performs Box Test sound insulation testing in accordance with VILAS & ISO 3744/3745 standards

To ensure accurate noise measurement results, acoustic test boxes (Box Test / Acoustic Test Box) need to be evaluated through a material testing, standardized, reliable and internationally recognized procedure.

At the DASM Institute for Acoustic Materials Development and Application, we provide services for testing sound insulation of Box Tests according to VILAS – ISO 3744/3745 standards, helping enterprises ensure accurate and stable measurement data while enhancing product reputation when bringing them to the market.

Content of Box Test testing at DASM

Typically, the sound insulation testing service for Box Tests according to VILAS – ISO 3744/3745 standards at DASM is conducted to determine important parameters such as:

• Sound level difference (Diff = L1 – L2) between two chambers
• Transmission Loss – Sound insulation capability by frequency band
• Acoustic tightness of doors, gaskets, and joints
• Identification of sound leakage points and areas causing sound insulation reduction

However, this time DASM performs the box test sound insulation testing according to customer requirements – measuring the Sound level difference (Diff).

DASM performs the measurement of the Sound level difference (Diff) between the two compartments of the Box Test. This is an important parameter to evaluate the sound insulation capability of the equipment:

+ L1: Sound pressure level in the outer chamber

+ L2: Sound pressure level inside when the Box Test is tightly closed

+ Diff = L1 – L2 (dB): Represents the noise reduction – sound insulation – anti-leakage capability

Note: The higher the Diff index → the better the sound insulation of the Box Test → the noise measurement environment is more standard and accurate.

Meaning of testing to measure the Diff index

Checking the actual quality of the Box Test design before mass production

Ensuring an accurate measurement environment

Standardizing the testing process before mass production or product delivery.

Benefits of Box Test inspection at DASM

When choosing DASM as an inspection partner, enterprises will receive:

• Objective measurement, meeting VILAS standards
• Detailed reports on Diff indices
• Analysis of strengths and weaknesses of the Box Test
• Proposals for improvements to enhance sound insulation capability
• Consultation on suitable sound insulation and sound absorption materials
• Enhancing product reputation when delivering to customers

DASM's services help enterprises ensure that the Box Test not only meets international standards but also optimizes testing efficiency for electronic products.

Why choose DASM as your Box Test inspection partner?

VILAS standard laboratory: ensures accuracy and legal value of results.

Compliance with ISO 3744/3745: international standard measurement process, ensuring objective results.

Experienced team of acoustic experts: conducts measurements professionally, analyzes data accurately and reliably, and advises on design, materials, and optimal solutions for products.

Strict confidentiality: project information and inspection results are strictly protected by DASM.

If your enterprise needs to evaluate Box Test sound insulation capability, improve design, or prove product quality according to international standards, DASM is a reliable partner.

Contact DASM hotline now for direct technical consultation and to schedule the fastest testing appointment.