EUROLAB, with its state-of-the-art accredited laboratories and expert team, offers precise and rapid testing services within the scope of EN ISO 140-12 testing. This part of EN ISO 140 specifies a laboratory method for measuring the airborne and impact sound insulation of an access floor with a plenum of defined height, mounted below an acoustic barrier separating two rooms of a given test facility.
This method uses a laboratory space arranged to simulate a pair of horizontally adjacent, typical offices or rooms sharing a common access floor system, plenum space, and a partition wall. The partition wall extends from the ceiling to the upper part of the floor system; which is either continuous or discontinuous at the point of connection.
The quantities measured are air and impact sound insulation between two rooms of a particular test facility where sound transmitted through paths other than the access floor and common plenum area is negligible. These quantities are called normalized wing level difference and normalized wing impact sound pressure level.
The method can be extended to examine the additional sound insulation that can be achieved with auxiliary systems, such as material used as a plenum barrier or as support for all or part of the floor.
The level of background noise shall be low enough to allow measurement of sound transmitted from the source room, taking into account the power output of the source room and the insulating properties of the samples intended by the laboratory. The reverberation time in the rooms should not be excessively long. In cases where the reverberation time at low frequencies exceeds 2 seconds or is less than 1 second, it should be checked whether the measured quantities depend on the reverberation time.
EUROLAB assists manufacturers with EN ISO 140-12 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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