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1.1 This classification provides a method for determining a rating that can be used to compare the levels of impact noise generated by a standard tapping machine and transmitted through different floor-ceiling assemblies.
1.2 The name given to the rating is assigned by the test method that invokes this classification.
1.3 This classification is applicable only to one third octave band impact noise data obtained using the standard tapping machine described in Test Methods E 492 and E 1007.
1.4 Test methods that invoke this classification include:
1.4.1 Test Method E 492 - the single-number rating is called impact insulation class (IIC).
1.4.2 Test Method E 1007 - the single-number rating is called field impact insulation class (FIIC).
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C634 Terminology Relating to Building and Environmental Acoustics
E492 Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine
E1007 Test Method for Field Measurement of Tapping Machine Impact Sound Transmission Through Floor-Ceiling Assemblies and Associated Support Structures
E2179 Test Method for Laboratory Measurement of the Effectiveness of Floor Coverings in Reducing Impact Sound Transmission Through Concrete Floors
ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)
UNSPSC Code 30141601(Acoustical insulation)
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ASTM E989-06, Standard Classification for Determination of Impact Insulation Class (IIC), ASTM International, West Conshohocken, PA, 2006, www.astm.orgBack to Top