TWRP-C3E ILM OCF1 Acoustic Enclosure -
Factory Acceptance Test
Overview
As part of the Tuas Water Reclamation Plant (TWRP-C3E) project in Singapore, ISTIQ was entrusted by Sanli M&E Engineering to deliver custom-engineered acoustic enclosures for high-performance ventilation systems. This particular Factory Acceptance Test (FAT) was conducted for the ILM OCF1 Fan Acoustic Enclosure, one of several units designed to meet stringent environmental and occupational noise limits in a densely populated urban infrastructure project.
Objective
The FAT aimed to verify that the acoustic enclosure:
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Complied with dimensional and structural requirements.
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Met or exceeded the specified noise reduction target of 25 dBA.
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Ensured the system’s performance was aligned with noise compliance standards.
FAT Results & Performance
Noise measurements were conducted using Brüel & Kjær Type 2270 Sound Level Meter and calibrator, with all readings taken at a height of 1.3 meters and 1 meter from the enclosure. The key findings were:
- The acoustic enclosure exceeded expectations, achieving a noise attenuation of 36.0 dBA, which is significantly higher than the 25 dBA minimum requirement.
- This performance confirms the effectiveness of ISTIQ’s STC35-rated panel system, validating its suitability for demanding industrial applications.
Conclusion
The successful completion of this FAT reinforces ISTIQ’s position as a trusted acoustic solution provider for complex engineering projects across Southeast Asia. Our precision in design, fabrication, and testing showcases our capability to deliver world-class noise control systems, even under tight regulatory and performance constraints.
BR 31316 
US 9598 
VN 4559 
IN 4393 
AR 2641 
CN 2574 
GB 2066 
MX 1872 
