Founded in 1918 by Wallace Clement Sabine, Alion’s Riverbank Acoustical Laboratories™ (RAL) is recognized worldwide as a source of valid acoustical data in numerous commercial, civilian, and military specifications. Our acoustical engineers support clients with independent, accurate testing of building materials and consumer products, providing both the data and the expertise to identify solutions that give a measurable advantage to meet or exceed industry standards.
With a staff of experts and advanced equipment, including six reverberation chambers as well as a fully equipped machine and tool shop, our team provides certified testing and analysis for sound transmission, absorption, and intensity for all kinds of building materials and consumer items, ranging from engines to hair dryers. We also develop solutions for equipment vibration isolation, noise abatement, and active silencing.
The principal tests performed in the reverberation chambers involve sound absorption, sound transmission loss, impact sound transmission, sound power, sound pressure, and dB(A) measurements— all of which are monitored in a central control room. Whether NRC tests, E90 testing, STC tests, or other acoustical testing, we provide clients with printouts, including both data and graphical presentations, immediately following the completion of each test.
RAL is accredited by the National Institute of Standards and Technology (NIST) through the National Voluntary Laboratory Accreditation Program (NVLAP) for selected acoustical testing services conducted in accordance with established standards.