ASTM-C384 2004

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C384-04 Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method

Published By	Publication Date	Number of Pages
ASTM	2004	9

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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 use of an impedance tube, alternatively called a standing wave apparatus, for the measurement of impedance ratios and the normal incidence sound absorption coefficients of acoustical materials.

1.2 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.

1.3 The values stated in SI units are to be regarded as the standard.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method Significance and Use
2	Apparatus
3	Sampling Test Specimen Preparation and Mounting Description of Standing Wave Pattern in Tube
4	Procedure FIG. 1
6	Calculation of Normal Incidence Sound Absorption Coefficient and Impedance Ratio Report Precision and Bias Keywords
7	A1. EVALUATION OF ANECHOIC WEDGES A1.1 Scope A1.2 Terminology A1.3 Summary of Test Method A1.4 Significance and Use A1.5 Apparatus FIG. A1.1
8	A1.6 Test Specimen Mounting A1.7 Test Procedure A1.8 Report A1.9 Precision and Bias
9	A2. LABORATORY ACCREDITATION A2.1 Scope A2.2 Summary of Procedures A2.3 Reference Tests REFERENCES

Additional information

Standard Title	C384-04 Standard Test Method for Impedance and Absorption of Acoustical Materials by Impedance Tube Method
Published Code	ASTM
Publication Date	2004
Pages Count	9
ICS Codes	91.120.20 - Acoustics in building. Sound insulation

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ASTM-C384 2004

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