This International ISO 12354-2 standard specifies computational models designed to predict impact sound insulation between rooms in buildings, primarily using measured data characterizing direct or indirect side transmission by participating structural members, and sound propagation methods derived theoretically in structural elements.
In the frequency range 1/3 octave 100 Hz to 3150 Hz, a detailed model is described for calculation in frequency bands, possibly extended to 1/3 octave 50 Hz if element data and connection data are available.
The odd number rating of buildings can be determined from the calculation results. A simplified model of limited application is derived from it by calculating the odd-number rating directly using the odd-number ratings of the elements; The uncertainty in the apparent impact sound pressure level calculated using the simplified model can be determined according to the method described in ISO 12354‑1.
ISO 12354-2 describes the principles of the calculation scheme, lists the quantities involved, and defines its applications and restrictions.
Among the services provided by our company, EUROLAB, within the framework of product adequacy testing services, there are also ISO 12354-2 standard tests.
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