ASTM-E966 2002

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E966-02 Standard Guide for Field Measurements of Airborne Sound Insulation of Building Facades and Facade Elements

Published By	Publication Date	Number of Pages
ASTM	2002	10

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

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Description

1.1 This guide covers field procedures for measuring the sound level reduction or sound transmission loss of an installed building facade or facade element in specified frequency bands. These values may be used separately to predict interior levels or combined into a single number such as by Classification E 413 (with precautions) or Classification E 1332 to estimate the sound insulating properties of the test element, FOITC, in the field. The results are applicable to installations similar to that tested when exposed to an outdoor sound field similar to that used during the measurement.

1.1.1 The facade element may be the exterior wall of a room in the building, or a portion of that wall such as a door or window, when the remainder of that wall has substantially greater sound insulation than the portion under test.

1.2 To cope with the variety of outdoor test geometry that may be encountered, several testing techniques are presented. These techniques and their general applicability are summarized in Table 1 and Figs. 1-6 .

1.3 This guide may be used to determine the outdoor-indoor level reduction (OILR), which is the difference in sound pressure between a specified outdoor sound field and the resulting sound pressure level in the room abutting the test facade or facade element. The outdoor sound field and its measurement must be thoroughly described. The resulting level reduction or transmission loss value will depend on the outdoor field geometry and the point at which it is measured or represented.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only.

1.5 This standard does not purport to address 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 or regulatory limitations prior to use.

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PDF Pages	PDF Title
1	Scope Referenced Documents
2	TABLE 1 FIG. 1 FIG. 2 FIG. 3 FIG. 4
3	Terminology Summary of Guide Significance and Use FIG. 5 FIG. 6
4	Conditions Required to Typify the Characteristics of a Facade Element Properties of the Receiving Room Required to Determine OITL() or Apparent OITL() OILR and OITL Measurement with a Fixed (Loudspeaker) Source
5	FIG. 7
6	Measurement with Traffic Noise (8) (or Similar Existing Source) FIG. 8
8	Adjustments for Background Noise Instrumentation Precision of Determination of OITL for a Facade Element Report TABLE 2
9	Precision and Bias Keywords A1. TESTS FOR ASSESSING FLANKING TRANSMISSION (PATHS OTHER THAN THROUGH THE TEST ELEMENT) A1.1 A1.2 A1.3
10	A1.4 REFERENCES

Additional information

Standard Title	E966-02 Standard Guide for Field Measurements of Airborne Sound Insulation of Building Facades and Facade Elements
Published Code	ASTM
Publication Date	2002
Pages Count	10
ICS Codes	91.120.20 - Acoustics in building. Sound insulation

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ASTM-E966 2002

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