Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
NORMA vydaná dňa 1.12.2016
Označenie normy: ASTM E90-09(2016)
Dátum vydania normy: 1.12.2016
Počet strán: 15
Približná hmotnosť: 45 g (0.10 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
airborne sound transmission loss, flanking transmission, sound transmission coefficient, sound transmission loss, transmission loss,, ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)
|Significance and Use|
5.1 Sound transmission loss as defined in Terminology , refers to the response of specimens exposed to a diffuse incident sound field, and this is the test condition approached by this laboratory test method. The test results are therefore most directly relevant to the performance of similar specimens exposed to similar sound fields. They provide, however, a useful general measure of performance for the variety of sound fields to which a partition or element may typically be exposed.
5.2 In laboratories designed to satisfy the requirements of this test method, the intent is that only significant path for sound transmission between the rooms is through the test specimen. This is not generally the case in buildings where there are often many other paths for sounds—5.3 This test method is not intended for field tests. Field tests shall be performed according to Test Method .
Note 2: The comparable quantity measured using Test Method is called the apparent sound transmission loss because of the presence of flanking sound transmission.
1.1 This test method covers the laboratory measurement of airborne sound transmission loss of building partitions such as walls of all kinds, operable partitions, floor-ceiling assemblies, doors, windows, roofs, panels, and other space-dividing elements.
1.2 Laboratories are designed so the test specimen constitutes the primary sound transmission path between the two test rooms and so approximately diffuse sound fields exist in the rooms.
1.3 Laboratory Accreditation—The requirements for accrediting a laboratory for performing this test method are given in .
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
|2. Referenced Documents|
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