Material testing for determining the acoustic properties of porous materials based on the transfer matrix method

The test method for determining the acoustic properties of porous materials based on the transfer matrix method helps control noise, control quality during the production process, optimize the research and development of sound absorption – sound insulation materials and effectively compare, calculate, and design acoustic rooms.

Content overview: Test method for determining the acoustic properties of porous materials based on the transfer matrix method

Test name: Standard Test Method for Measurement of Normal Incidence Sound Transmission of Acoustical Materials Based on the Transfer Matrix Method.

Test method:

ASTM 2611-09: Standard Test Method for Measurement of Normal Incidence Sound Transmission of Acoustical Materials Based on the Transfer Matrix Method [1].

Performed at: Laboratory, Institute for Development & Application of Acoustic Materials (DASM).

1. Objectives and test subjects

Laboratory testing of the acoustic properties of materials:

• Sound absorption coefficient
• Sound attenuation coefficient (Acoustic energy loss)

Subjects: Sound absorption materials or sound insulation materials.

2. Experimental procedure

Steps to perform:

• Fully prepare the equipment, impedance tubes, and test samples.
• Perform sample measurement.
• Process and report results.

3. Notes

In practice, sound insulation – sound absorption wall structures have multiple layers with the addition of vertical studs, wool supports, or adhesives.

It is very difficult to add vertical studs from the actual structure into the impedance tube for testing. Therefore, to optimize the test method, the operation of these vertical steel studs can be ignored, and only the sound insulation – sound absorption panel materials are considered.

The role – importance of the test method for determining the acoustic properties of porous materials based on the transfer matrix method

The test method for determining the acoustic properties of porous materials based on the transfer matrix method conducted by the Institute for Development & Application of Acoustic Materials helps meet all practical needs such as:

• Customers desire to control noise.
• Businesses need to control quality during production and optimize the research and development of sound absorption materials.
• Users have a basis to effectively compare, calculate, and design acoustic rooms.
• Obtain certificates and test results to increase competitiveness – sales, or bring products into installation, use, and construction in projects smoothly, transparently, and compliantly.

In addition, if the test sample does not meet standards, DASM will consult and design solutions regarding shapes/structures/materials used to adjust the design in a streamlined, effective, and cost-saving manner.

If previously you had concerns and worries and had to pay many fees for similar activities abroad, now you just need to contact DASM. The entire remaining process will be proactively and fully implemented by us in the fastest time to complete the customer experience regarding us: DASM provides acoustic consulting services with truly superior quality, the most competitive prices in the industry, and thoughtful, dedicated customer care policies.

Significance of acoustic testing services at DASM

Today's globalized commercial life opens up countless new markets and sources of supply across five continents. Along with that are international regulations and standards that help customers easily evaluate quality – trace the origin of products, and select suitable/superior items. In particular, they support manufacturers in continuously improving and perfecting technology, techniques, raw materials, production methods, sales, etc.

The Institute for Development & Application of Acoustic Materials (DASM) is a pioneering, comprehensive, professional, and leading prestigious brand in Vietnam in the field of acoustics. On January 12, 2023, DASM was granted certificate No. 114/TĐC – HCHQ by the Directorate for Standards, Metrology and Quality (Ministry of Science & Technology), certifying its registration for multi-industry comprehensive testing activities in the Mechanical-Physical field (registration number: 707/TN – TĐC).

Our acoustic testing service portfolio provides customers with practical professional results to meet sustainability, standard performance, and optimal solutions – consulting – design adjustments for products and services. From there, you will update, meet, and adapt to constantly changing international standards to achieve breakthroughs in revenue, profit, and elevate your brand.

At the same

If you have a need to perform the test method for determining the acoustic properties of porous materials based on the transfer matrix method, please contact via Hotline for detailed consultation!