ASTM-C522 2003

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C522-03 Standard Test Method for Airflow Resistance of Acoustical Materials

Published By	Publication Date	Number of Pages
ASTM	2003	5

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Categories: 91.120.20 - Acoustics in building. Sound insulation, ASTM

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Description

1.1 This test method covers the measurement of airflow resistance and the related measurements of specific airflow resistance and airflow resistivity of porous materials that can be used for the absorption and attenuation of sound. Materials cover a range from thick boards or blankets to thin mats, fabrics, papers, and screens. When the material is anisotropic, provision is made for measurements along different axes of the specimen.

1.2 This test method is designed for the measurement of values of specific airflow resistance ranging from 100 to 10 000 mks rayls (Pas/m) with linear airflow velocities ranging from 0.5 to 50 mm/s and pressure differences across the specimen ranging from 0.1 to 250 Pa. The upper limit of this range of linear airflow velocities is a point at which the airflow through most porous materials is in partial or complete transition from laminar to turbulent flow.

1.3 A procedure for accrediting a laboratory for the purposes of this test method is given in Annex A1.

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.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Apparatus FIG. 1
3	Sampling FIG. 2
4	Test Specimens Procedure Calculation Report Precision and Bias Keywords TABLE 1
5	A1. LABORATORY ACCREDITATION A1.1 Scope A1.2 Referenced Documents A1.3 General Requirements A1.4 Requirements Specific to This Test Method TABLE 2

Additional information

Standard Title	C522-03 Standard Test Method for Airflow Resistance of Acoustical Materials
Published Code	ASTM
Publication Date	2003
Pages Count	5
ICS Codes	91.120.20 - Acoustics in building. Sound insulation

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