1. Scope

1.1 This test method covers the measurement of the transmission of impact sound generated by a standard tapping machine through floor-ceiling assemblies and associated supporting structures in field situations.

1.2 Measurements may be conducted on all types of floor-ceiling assemblies, including those with floating-floor or suspended ceiling elements, or both, and floor-ceiling assemblies surfaced with any type of floor-surfacing or floor-covering materials.

1.3 This test method further prescribes:

1.3.1 A uniform procedure for reporting test data, that is, the normalized one-third octave band sound pressure levels generated in the receiving room by the operation of the standard tapping machine on the floor-ceiling assembly.

1.3.2 The use of a single-figure classification rating, 'Field Impact Insulation Class, FIIC' that can be used by architects, builders, and specification and code authorities for acoustical evaluation purposes in completed buildings. The FIIC is obtained by matching a standard reference contour to the plotted normalized one-third octave band sound pressure levels at each test frequency obtained in accordance with this test method. For details regarding the derivation and significance of the FIIC, see Classification E 989.

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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

C634 Terminology Relating to Building and Environmental Acoustics

E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements

E336 Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings

E492 Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using the Tapping Machine

E966 Guide for Field Measurements of Airborne Sound Attenuation of Building Facades and Facade Elements

E989 Classification for Determination of Impact Insulation Class (IIC)

E1414 Test Method for Airborne Sound Attenuation Between Rooms Sharing a Common Ceiling Plenum

E2235 Test Method for Determination of Decay Rates for Use in Sound Insulation Test Methods

Keywords

absorption normalized impact sound pressure level; apparent impact insulation class; impact sound insulation; impact sound pressure level; impact sound rating; normalized impact sound rating; reverberation time normalized impact sound pressure level; tapping machine;

ICS Code

ICS Number Code 91.120.20 (Acoustics in buildings. Sound insulation)

DOI: 10.1520/E1007-04E01

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