【Applicable standards】
TB/T 3262-2011 Cab doors of multiple unit trains
GB/T 8485-2008 The graduation and air test method for airborne sound insulating properties of windows and doors
GB/T 19885.3-2005/ISO 140-3:1995 Acoustics-Measurement of sound insulation in buildings and of building elements-Part 3: Laboratory measurements of airborne sound insulation of building elements
GB/T 20247-2006 Acoustics-Measurement of sound absorption in a reverberation room
GB/T 6881.1-2002 Acoustics-Determination of sound power levels of noise sources using sound pressure-Precision methods for reverberation rooms
GB/T 19889.1-2005 Acoustics- Measurement of sound insulation in buildings and of building elements-Part 1: Requirement for laboratory test facilities with suppressed flanking transmission
【Equipment composition】
2 large reverberation rooms of 400m3 and 1 small reverberation room of more than 300m3.
【Product features】
By configuring the reverberation room of the EMU plug-in door sound insulation performance test system, the measurement environment of sound insulation and sound power is established to make up for the lack of measurement in the acoustic environment of the laboratory. The EMU plug-in door sound insulation performance test system according to the requirements of GB/T 8485-2008 and ISO 140.3:1995 and other relevant standards to measure the sound insulation performance of the related door and window systems such as plug-in door and side sliding door. In addition, it can measure the sound power of the sound source using the reverberant field.
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