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ČSN EN 16272-4 (736342)
Railway applications - Track - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction under direct sound field
Translate name
STANDARD published on 1.4.2017
The information about the standard:
Designation standards: ČSN EN 16272-4
Classification mark: 736342
Catalog number: 501579
Publication date standards: 1.4.2017
SKU: NS-678769
The number of pages: 40
Approximate weight : 120 g (0.26 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN 16272-4 (736342):
This European Standard describes a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of railway noise barriers. The test method prescribes measurements of the sound pressure level at several reference points near the top edge of a noise barrier with and without the added device installed on its top. The intrinsic effectiveness of the added device is calculated as the difference between the measured values with and without the added devices, correcting for any change in height. In other words, the method described here gives the acoustic benefit of changing the shape and materials of the top edge over a simple barrier of the same height. This is an intrinsic characteristic of the added device, provided that the source and receiver positions are standardized. In practice, when the added device is placed over an existing barrier, it raises the height and this provides additional screening, depending on the source and receiver positions; this additional screening is not considered in this European Standard
Preview of the standard ČSN EN 16272-4 (736342)
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