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Significance and Use
4.1 Acoustically absorptive materials are used for the control of reverberation and echoes in rooms. This standard provides a classification method for acoustically absorptive materials applied directly to surfaces by trowel or by spray.
1.1 This classification covers materials applied by trowel or spray to surfaces for the purpose of increasing their acoustical absorption.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C423 Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
C634 Terminology Relating to Building and Environmental Acoustics
E84 Test Method for Surface Burning Characteristics of Building Materials
E795 Practices for Mounting Test Specimens During Sound Absorption Tests
E859 Test Method for Air Erosion of Sprayed Fire-Resistive Materials (SFRMs) Applied to Structural Members
ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)
UNSPSC Code 30161601(Acoustic ceiling tiles); 30141601(Acoustical insulation)