Professional Partition and Wall Sound Insulation Measurement Service According to International Standards at DASM

Does DASM provide sound insulation measurement services for walls and partitions? What are the testing standards? How much does sound insulation measurement cost? All will be answered in our article below.

In the context of increasingly high living and working standards, sound insulation in civil and industrial construction has become extremely important. From residences, hotels, offices to hospitals, schools, recording studios... all need to ensure sound insulation quality to bring quietness, privacy, and spatial usage efficiency. However, sound insulation performance cannot be accurately assessed only by perception. That is why professional material testing – sound insulation measurement services according to international standards are so necessary.

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In Vietnam, DASM (DASM Institute of Acoustics) is one of the pioneer and leading units in providing sound insulation measurement services for walls, partitions, ceilings, floors, doors, and composite structure systems with modern equipment, experienced engineers, and international standard procedures.

DASM provides whatforms of wall sound insulation testing?

DASM is currently deploying two forms of wall and partition sound insulation measurement; applied depending on the conditions and purpose of use:

Laboratory Sound Insulation Measurement for Walls and Partitions (Laboratory Testing)

Laboratory sound insulation measurement for walls and partitions is a measurement form in a controlled environment with standard component samples installed between two standard rooms. This form yields accurate results, suitable for construction material manufacturers who need to declare product quality.

Applicable standards:

• ISO 10140-2: Laboratory measurement of airborne sound insulation of partitions, walls, ceilings, and floors.
• ISO 717-1: Standard for analysis and normalization of results, yielding Rw, C, Ctr indices.

Measurement results:

• Rw (Weighted Sound Reduction Index): Standard sound insulation index in dB.
• C / Ctr: Adjustment coefficients according to noise spectrum (indoor or traffic).

On-site Sound Insulation Measurement for Walls and Partitions (On-site / Field Testing)

For completed projects where actual sound insulation effectiveness after construction needs to be evaluated, DASM will measure wall and partition sound insulation on-site for customers. This field measurement is often used in project acceptance, bidding, or verifying material quality at the operating site.

Applicable standards:

• ISO 16283-1: Field measurement of sound insulation between two real spaces (laboratory conditions not required).
• ISO 717-1: Normalization of results to calculate R’w, C, Ctr indices.

Measurement results:

• R’w (Field-measured Sound Reduction Index): Actual sound insulation index measured on-site.
• C / Ctr: Adjustments similar to laboratory measurements.

Why is it necessary to measure the sound insulation of wall and partition structures using specialized equipment?

Many projects, even though constructed with specialized sound insulation and sound absorption materials, are found after completion to have sound leaking through walls, partitions, doors..., affecting daily life, work, privacy, and even service quality. Checking sound insulation by ear is not enough because:

• Sound propagates unevenly across frequencies, with some types easily leaking and others hard to detect.
• Each material reacts differently across frequency bands.
• The naked eye cannot determine the exact dB attenuation level.

Professional, internationally standardized sound insulation measurement services for walls and partitions at DASM will help you:

• Check the actual effectiveness of structural systems (partitions, ceilings, doors...)
• Verify the quality of installed sound insulation materials
• Have clear technical data for project acceptance and bidding
• Declare product quality in mass production

Technical indices provided by DASM in the sound insulation test report

The wall and partition sound insulation test report from DASM Institute includes technical indices such as:

Rw (Weighted Sound Reduction Index)

• An index measuring overall sound insulation capacity according to ISO standards.
• The higher the value, the better the sound insulation capacity (e.g., Rw = 45dB is a good sound insulation level for classrooms, Rw = 50dB for hotels).

R’w (Field-measured Rw)

• An index measured at the project, reflecting true actual construction conditions.

C / Ctr (Spectrum Adaptation Terms)

• Adjusting the Rw index according to the noise environment type:

C: Speech, music, living sounds

Ctr: Traffic noise, vehicles, machinery

When is DASM's sound insulation measurement service applied?

✅ Acceptance of civil and industrial projects

✅ Evaluation of sound insulation materials before mass production

✅ Certification of product sound insulation indices (partitions, doors, floors...)

✅ Preparation of bidding documents and quality declarations

✅ Assessment of acoustic treatment solutions for studios, offices, hotels...

Sound insulation measurement procedure at DASM

• Receiving information on samples or components requiring testing
• Current status survey (if measured at the project site)
• Preparing measuring equipment, signal generators, and standard receiving microphones
• Conducting measurements and recording results at standard frequencies
• Processing data according to ISO 717-1 to derive Rw, R’w, C, Ctr indices
• Prepare technical reports, which can be bilingual in Vietnamese and English upon customer request

Cost of sound insulation testing services at DASM

Compared to sending sound insulation test samples to overseas laboratories or inviting foreign entities to test the sound insulation of partition walls and structures, sound insulation testing services at DASM save both time and costs for customers.

The cost of sound insulation testing services at DASM Institute depends on various factors:

• Testing method (Laboratory or field testing)
• Type of component: partitions, walls, doors, ceilings, floors, etc.
• Number of samples to be tested
• Testing location (in Ho Chi Minh City, Hanoi, provinces, etc.)
• Level of detail required in the report

DASM – The first acoustics laboratory in Vietnam meeting VILAS standards

• DASM is an advanced testing institute in the field of acoustics – noise and vibration control
• VILAS accredited
• Measurement equipment and software systems meeting ISO/IEC 17025 standards
• Team of leading engineers – acoustic experts – architects – material experts in Vietnam

With the reputation and successes achieved in the field of acoustics and acoustic services over the past time, DASM is proud to be a trusted partner of many prominent clients: general contractors, investors, component manufacturing plants, world-leading manufacturing corporations, and major material brands in Vietnam and worldwide. Customers in need of consultation and acoustic testing services, sound insulation testing services from DASM Institute, please contact via Hotline for timely support.