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How are acoustic door seals tested?

April 26, 2017acoustic door seals tested

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How are acoustic door seals tested?

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Norsounds range has been tested within the UK in accordance with BS EN ISO 140-3: 1995. The basic laboratory consists of two rooms, a ‘source room‘ and a ‘receiving room‘. To give an idea of the scale of this test the source room in one of our tests was 115 cubic metres and the receiving room 300 cubic metres. A broad band of noise is generated via an electronic generator, powered through an amplifier and loudspeaker. The receiving room has a microphone mounted on an oscillating boom which in turn is connected to a real time analyser.