Determination of vibrational sound transmission through floor-ceiling assemblies

The test method for the determination of airborne and impact sound transmission through floor-ceiling assemblies aims to measure impact sound insulation performance of floor-ceiling assemblies; acting as a scientific, verifiable basis for designing construction products that meet specific acoustic insulation requirements and achieve optimal sound insulation performance.

 

Overview of contents: Test method for the determination of airborne and impact sound transmission through floor-ceiling assemblies.

Test name: Acoustics – Laboratory measurement of impact sound transmission through floor-ceiling assemblies using a tapping machine.

Test method:

ASTM E492-2009: Laboratory Measurement of Impact Sound Transmission Through Floor – Ceiling Assemblies Using the Tapping Machine.

Conducted at: Laboratory.

1. Objectives, subjects & testing laboratory

1.1. Test objectives

• This test method covers the laboratory measurement of impact sound transmission through floor-ceiling assemblies using a standardized tapping machine. It is assumed that the test specimen forms the primary sound transmission path into a receiving room located directly below and that this closely approximates a diffuse sound field existing in this room.
• Measurements may be conducted on various types of floor-ceiling assemblies, including those with floating floors or suspended ceiling components, or both, and surface floor-ceiling assemblies with any type of floor surface or floor covering material.
• This test method specifies a uniform procedure for reporting laboratory test data, namely the normalized impact sound pressure level in one-third octave bands transmitted through the ceiling assembly caused by the tapping machine.

1.2. Test subjects

Various types of floor-ceiling assemblies.

1.3. Laboratory equipment

+ Single microphone or boom microphone for determining sound intensity level

+ 1 sound source which can be an impact sound generator

+ Acoustic signal processor

+ Signal processing software

+ Laboratory meeting the requirements for floor installation

2. Testing procedure

• Execution steps:

+ Prepare the test specimen

+ Perform sample measurement

                  * Determine the background noise level Lb

                  * Determine the sound source intensity, Ls

                  * Determine the receiving room sound intensity, Lc

                  * Determine the reverberation time (RT60) of the receiving room 

• Process and report results.

Role – and importance of the test method for the determination of airborne and impact sound transmission through floor-ceiling assemblies.

The test method for the determination of airborne and impact sound transmission through floor-ceiling assemblies performed by the Institute of Acoustics Sound Materials Development & Application helps provide useful information, meeting all practical needs of customers and businesses wishing to:

• Measure the impact sound insulation of floor – ceiling assemblies.
• Have a scientific, verifiable basis as a reference to design construction products that meet specific acoustic insulation requirements and achieve optimal sound insulation performance.
• Achieve acoustic insulation standards for works and categories in construction projects.
• Control quality during production, optimize research and development of sound insulation for floor – ceiling assemblies.
• Propose and implement priority solutions for suitable materials, products, etc., possessing effective sound insulation for floor – ceiling assemblies.
• Provide certificates and test results to increase competitiveness and sales, or to bring floor – ceiling assemblies into installation, use, and construction in projects and works conveniently, transparently, and compliantly.

Besides, in case the test sample does not meet standards, DASM will consult and design solutions regarding shape, structure, and materials used to adjust the design in a streamlined, efficient, and cost-effective manner.

If previously you had some worries and concerns and had to spend many fees for similar activities abroad, now you just need to contact DASM. All remaining processes will be proactively implemented by us as a complete package in the shortest time to complete the customer experience about us: DASM provides acoustic consulting services with truly superior quality, the most competitive prices in the industry, and thoughtful, dedicated customer care policies.

Meaning of acoustic testing services at DASM.

Today's globalized commercial life opens up countless new markets and supply sources across five continents. Accompanied by it are international regulations and standards making it easy for customers to assess quality, trace product origin, and choose suitable or superior items. In particular, they support manufacturers to continuously improve and perfect technology, techniques, materials, production methods, sales, etc.

Institute of Acoustics Sound Materials Development & Application (DASM) is a pioneering, comprehensive, professional, and leading prestigious brand in Vietnam in the field of acoustics. On January 12, 2023, DASM was granted a certificate of registration for multi-industry testing in the field of Mechanics - Physics (registration number: 707/TN - TĐC) by the Directorate for Standards, Metrology and Quality (Ministry of Science and Technology).

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

If you have a demand to perform the test method for the determination of airborne and impact sound transmission through floor-ceiling assemblies, please contact us via Hotline for detailed consultation!