Acoustic Impedance Tube Testing Services
We provide professional acoustic impedance tube testing in accordance with ASTM standard test methods for the measurement of sound absorption coefficients and sound transmission loss of materials and samples. Our services support research, product development, and acoustic engineering, delivering reliable, repeatable data for material characterisation and performance validation.
We operate two dedicated impedance tube test setups, allowing accurate measurement across low to medium frequency ranges:
- 80–800 Hz for low-frequency acoustic performance
- 200–2500 Hz for mid-frequency acoustic behaviour
This dual-tube capability enables detailed frequency-dependent analysis and comparison of acoustic materials across a broad and relevant spectrum.
What We Measure
- Normal incidence sound absorption coefficients (ASTM-compliant)
- Sound transmission loss using impedance tube methods
- Frequency-dependent acoustic performance
- Comparative testing of material variants and prototypes
Materials and Sample Types
We test a wide range of materials, including:
- Porous absorbers and foams
- Polymers and composites
- 3D printed and engineered structures
- Experimental and research-focused materials
Why Work With Us
ASTM-compliant impedance tube testing
- ASTM-compliant impedance tube testing
- Dual frequency range capability covering 80–800 Hz and 200–2500 Hz
- Testing delivered by PhD-level researchers in acoustics, ensuring technical rigour and research-grade measurement quality
- Experience supporting industrial R&D, product development, and academic research
- Flexible testing for standard and non-standard sample geometries
- Clear, usable reporting with rapid turnaround
- Bath-based service supporting clients across the South West and UK
If you require ASTM-standard acoustic testing, sound absorption measurement, or sound transmission loss data, we provide a technically robust and responsive service tailored to your project requirements.
Contact Us For More Information
