Airborne sound insulation — STC and Rw testing
Traceable — not in accredited scope
Full-size specimens mounted in the test aperture between two decoupled reverberation rooms. Reported per one-third-octave band and rated as STC to ASTM E413 or Rw with C and Ctr to ISO 717-1.
- Wall and partition systems, including drywall and modular partitions
- Doors and door sets, including acoustic doorsets
- Windows and glazing systems
- Acoustic barriers and enclosure panels
- Composite construction products
Test facility
- Configuration
- Two decoupled reverberation rooms
- Frequency range
- 100–5,000 Hz, one-third-octave bands
- Reported quantities
- TL or R per band, STC (ASTM E413), Rw + C + Ctr (ISO 717-1)
Every specimen is scanned before we measure
A gap of a millimetre where the specimen meets the test aperture can cost several decibels in the upper bands, and would understate what your product actually achieves. Before the official measurement we scan the installed specimen with an acoustic camera to confirm the mounting is sound. If it is not, we re-install and re-scan. Included as standard.