DASM Provides Box Test Sound Insulation Testing According to VILAS & ISO 3744/3745

To ensure accurate noise measurement results, acoustic testing devices (Box Test / Acoustic Test Box) must be evaluated through a standardized, reliable, and internationally recognized testing procedure.

At the Institute for Development and Application of Acoustic Materials – DASM, we offer Box Test sound insulation testing services in accordance with VILAS – ISO 3744/3745 standards. This service helps businesses ensure precise and consistent measurement data while enhancing product credibility in the market.

Box test testing at DASM

Typically, DASM’s Box Test sound insulation testing according to VILAS – ISO 3744/3745 is conducted to determine key parameters such as:

• Sound level difference (Diff = L1 – L2) between two chambers
• Transmission Loss – sound insulation performance across frequency ranges
• Sound tightness of doors, gaskets, and connections
• Detection of sound leakage points and areas that reduce insulation efficiency

In this particular case, DASM conducted a Box Test sound insulation evaluation at the customer’s request – measuring the Sound Level Difference (Diff).

DASM measures the sound level difference (Diff) between the two Box Test chambers. This parameter is critical for evaluating the device’s sound insulation performance:

L1: Sound level in the outer chamber

L2: Sound level inside when the Box Test is closed

Diff = L1 – L2 (dB): Indicates noise reduction – sound insulation – and leakage prevention

Note: The higher the Diff value → the better the Box Test insulation → the more accurate and reliable the noise measurement environment.

Significance of Measuring Diff (Sound Level Difference)

• Verify the actual design quality of the Box Test before mass production
• Ensure an accurate measurement environment
• Standardize testing procedures before mass production or product handover

Benefits of Box Test Certification at DASM

By choosing DASM as your testing partner, your business will gain:

• Objective measurement in compliance with VILAS standards
• Detailed reports on Diff values
• Analysis of strengths and weaknesses of the Box Test
• Recommendations for improving sound insulation performance
• Consultation on suitable soundproofing and acoustic materials
• Increased product credibility when delivered to customers

DASM’s services help businesses ensure that their Box Test not only meets international standards but also optimizes testing effectiveness for electronic products.

Why Choose DASM as Your Box Test Certification Partner?

• VILAS-standard laboratory: Ensures the accuracy and legal validity of results
• Compliance with ISO 3744/3745: Standardized international testing procedures for objective results
• Experienced acoustic experts: Conduct professional measurements, accurately analyze data, and provide advice on design improvements and optimal material/solution selection
• Strict confidentiality: Project information and test results are strictly protected by DASM

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

Contact DASM hotline now for direct technical consultation and to schedule testing as quickly as possible.