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Reverberation chamber testing and NRC value interpretation

Author：mu shu product knowledge
Reverberation chamber testing and NRC value interpretation
<p>The reverberation room is a hard wall space, and the sound absorption coefficient is calculated by measuring the difference in reverberation time before and after adding sound-absorbing materials. NRC is the arithmetic average of the sound absorption coefficients in four octaves of 250, 500, 1000, and 2000Hz. </p><p>Foreign trade customers often require ISO 354 or ASTM C423 standard test reports. Each batch of Mushu boards can be sent to a third-party laboratory for inspection, and the NRC value is marked in the product manual and inquiry quotation to help customers quickly select models. </p>
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