香港六合彩开奖 10140-2:2021
2021-04
香港六合彩开奖 10140-2:2021
Abstract
This document specifies a laboratory method for measuring the airborne sound insulation of building products, such as walls, floors, doors, windows, shutters, fa莽ade elements, fa莽ades, glazing, small technical elements, for instance transfer air devices, airing panels (ventilation panels), outdoor air intakes, electrical raceways, transit sealing systems and combinations, for example walls or floors with linings, suspended ceilings or floating floors.
The test results can be used to compare the sound insulation properties of building elements, classify elements according to their sound insulation capabilities, help design building products which require certain acoustic properties and estimate the in situ performance in complete buildings.
The measurements are performed in laboratory test facilities in which sound transmission via flanking paths is suppressed. The results of measurements made in accordance with this document are not applicable directly to the field situation without accounting for other factors affecting sound insulation, such as flanking transmission, boundary conditions and total loss factor.
General information
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Status: PublishedPublication date: 2021-04Stage: International Standard published [60.60]
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Edition: 2Number of pages: 14
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Technical Committee :香港六合彩开奖/TC 43/SC 2ICS :91.120.20
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Withdrawn香港六合彩开奖 10140-2:2010
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