GB/T 39796-2021
ActiveTest method for airbone sound insulating properties of glass used on multipe units
动车组玻璃隔声性能试验方法
Application Summary AI generated
This standard specifies the laboratory test method for measuring the airborne sound insulation of glass used in multiple-unit trains (e.g., high-speed EMUs). It is applied by manufacturers and testing laboratories to evaluate the acoustic performance of window and partition glass under controlled conditions, ensuring compliance with noise reduction requirements for passenger comfort in rail vehicles. The standard defines the test setup, specimen mounting, and calculation procedures specific to the geometry and mounting conditions of train glass.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.