The test results are presented in table format: (Please click on a page listed below to view the results)

• Page 1(WMP-VR, WMP-VR BLACK, WMP-VR (PERF), & WMP-VR-R PLUS)

• Page 2(WMP-10, WMP-30, WMP-50, & WMP-F)

• Page 3(WMP-F (PERF), VSF HD, AND R-3035 HD)

• Page 4(GYMGUARD, & ARENASHIELD)

   

Please refer to the Lamtec Product Selection Guide for a summary of additional key performance criteria. 

Background

When evaluating the acoustical requirements inside the building, it is important to examine and understand the makeup of the unwanted sound.  Sound absorbing materials tend to be frequency dependent, i.e., one material may perform extremely well at low frequencies and not as well at high frequencies. 

Acoustical testing has been performed according to ASTM C423, "Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method".  The sound absorption coefficients are provided for frequencies of 63 Hz to 5000Hz.  The NRC is calculated by averaging the sound absorption coefficients at 250, 500, 1000 and 2000 Hz.