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ASTM E3133-18

(Test Method)

Standard Test Method for Laboratory Measurement of Floor Impact Sound Radiation Using the Tapping Machine

Standard Test Method for Laboratory Measurement of Floor Impact Sound Radiation Using the Tapping Machine

SIGNIFICANCE AND USE
5.1 This standard provides a method to measure the level of sound power generated in a room by impacts on a given floor surface within the same room. The test results could be used to compare the relative sound power of tapping machine impact noise on various finished floor surfaces. The resulting data could be used for comparing relative levels of unwanted noise from footfalls and objects accidentally dropped on the floor.  
5.2 The spectrum and level of the sound power produced by floor impacts is determined by:  
5.2.1 The mechanical properties of the floor structure, such as its size, construction, surface, mounting or edge restraints, stiffness, or internal damping,  
5.2.2 The measured acoustical characteristics of the test room,  
5.2.3 The location of the object or device producing the impacts, and  
5.2.4 The nature of the impact.  
5.3 This test method is based on the use of a standard tapping machine of the type specified in 8.1 placed in specific positions on the floor. This machine produces a continuous series of uniform impacts at a uniform rate on a test floor and generates broadband sound pressure levels that are sufficiently high to make measurements possible with most floor types even in the presence of background noise. The tapping machine itself, however, is not designed to simulate any one type of impact, such as produced by male or female footsteps.  
5.4 Because of its portable design, the tapping machine does not simulate the weight of a human walker. The degree of correlation between the results of tapping machine tests in the laboratory and the subjective acceptance of floors under typical conditions of domestic impact excitation is uncertain. The correlation will depend on both the type of floor construction and the nature of the impact excitation in the building.  
5.5 This test method is not intended for field tests.
SCOPE
1.1 This test method covers the laboratory measurement of impact sound radiation from floor structures using a standardized tapping machine. While the finished floor surface is usually the primary factor, it must be noted that the floor structure below the finished floor also plays a major role in the level of noise generated in the source room by impacts to the floor surface. As a result, the report must include a full description of the complete floor structure and its support (for example, perimeter support only, multiple point supports, or full continuous support like a slab on grade). It is assumed that the impact sound generated by the tapping machine in the test room is a good approximation to a diffuse sound field.  
1.2 Measurements may be conducted on floor structures of all kinds, 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 prescribes a uniform procedure for reporting laboratory test data in both one-third-octave-band and overall A-weighted sound power levels generated by the tapping machine impacts on the floor structure (test specimen).  
1.4 Laboratory Accreditation—The requirements for accrediting a laboratory for performing this test method are given in Annex A2.  
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization ...

General Information

Status
Historical
Publication Date
31-Mar-2018
ICS
91.120.20 - Acoustics in building. Sound insulation
Technical Committee
E33 - Building and Environmental Acoustics
Drafting Committee
E33.10 - Structural Acoustics and Vibration
Current Stage
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ASTM E3133-18 - Standard Test Method for Laboratory Measurement of Floor Impact Sound Radiation Using the Tapping MachineASTM E3133-18 - Standard Test Method for Laboratory Measurement of Floor Impact Sound Radiation Using the Tapping Machine
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ASTM E3133-18 - Standard Test Method for Laboratory Measurement of Floor Impact Sound Radiation Using the Tapping Machine
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E3133 − 18
Standard Test Method for
Laboratory Measurement of Floor Impact Sound Radiation
1
Using the Tapping Machine
This standard is issued under the fixed designation E3133; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
This test method is used to evaluate the impact sound radiation in the source room of various floor
structures in a controlled laboratory environment. The method is similar to that used in Test Method
E492, and provided that the Test Method E492 laboratory facility’s source room meets the room
requirementsofthistestmethod,thistestcanbeperformedsimultaneouslywiththeTestMethodE492
test. This test method does not require a separate receive room as the measurements are made in the
room that also contains the impact noise source. It is anticipated that a different standard will be
developed in the future to enable field measurement of floor impact sound radiation. Other related
standards include field measurement of impact sound transmission through floor-ceiling assemblies
(Test Method E1007) and laboratory measurement of the effectiveness of floor coverings in reducing
impact sound transmission through concrete floors (Test Method E2179).
1. Scope 1.4 Laboratory Accreditation—The requirements for ac-
crediting a laboratory for performing this test method are given
1.1 This test method covers the laboratory measurement of
in Annex A2.
impact sound radiation from floor structures using a standard-
1.5 The values stated in SI units are to be regarded as
ized tapping machine. While the finished floor surface is
standard. No other units of measurement are included in this
usually the primary factor, it must be noted that the floor
standard.
structure below the finished floor also plays a major role in the
1.6 This standard does not purport to address all of the
level of noise generated in the source room by impacts to the
safety concerns, if any, associated with its use. It is the
floor surface. As a result, the report must include a full
responsibility of the user of this standard to establish appro-
description of the complete floor structure and its support (for
priate safety, health, and environmental practices and deter-
example, perimeter support only, multiple point supports, or
mine the applicability of regulatory limitations prior to use.
full continuous support like a slab on grade). It is assumed that
1.7 This international standard was developed in accor-
the impact sound generated by the tapping machine in the test
dance with internationally recognized principles on standard-
room is a good approximation to a diffuse sound field.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.2 Measurements may be conducted on floor structures of
mendations issued by the World Trade Organization Technical
all kinds, including those with floating-floor or suspended
Barriers to Trade (TBT) Committee.
ceiling elements, or both, and floor-ceiling assemblies surfaced
with any type of floor-surfacing or floor-covering materials.
2. Referenced Documents
1.3 This test method prescribes a uniform procedure for
2
2.1 ASTM Standards:
reporting laboratory test data in both one-third-octave-band
C423 Test Method for SoundAbsorption and SoundAbsorp-
and overall A-weighted sound power levels generated by the
tion Coefficients by the Reverberation Room Method
tapping machine impacts on the floor structure (test specimen).
C634 Terminology Relating to Building and Environmental
Acoustics
1
ThistestmethodisunderthejurisdictionofASTMCommitteeE33onBuilding
2
and Environmental Acoustics and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
E33.10 on Structural Acoustics and Vibration. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved April 1, 2018. Published May 2018. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
E3133-18. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E3133 − 18
E90 Test Method for Laboratory Measurement of Airborne reverberant sound field
Sound Transmission Loss of Building Partitions and reverberation room
Elements sound absorption
E492 Test Method for Laboratory Measurement of Impact sound pressure level
Sound Transmission Through Floor-Ceiling Assemblies
4. Summary of Test Method
Using the Tapping Machine
4.1 A
...

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1.1 This test method covers the laboratory measurement of impact sound transmission of floor-ceiling assemblies using a standardized tapping machine. It is assumed that the test specimen constitutes the primary sound transmission path into a receiving room located directly below and that a good approximation to a diffuse sound field exists in this room.  
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5.1 The acoustical impedance properties of a sound absorptive material are related to its physical properties, such as airflow resistance, porosity, elasticity, and density. As such, the measurements described in this test method are useful in basic research and product development of sound absorptive materials.  
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1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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5.1 The specific airflow resistance of an acoustical material is one of the properties that determine its sound-absorptive and sound-transmitting properties. Measurement of specific airflow resistance is useful during product development, for quality control during manufacture, and for specification purposes.  
5.2 Valid measurements are made only in the region of laminar airflow where, aside from random measurement errors, the airflow resistance (R = P/U) is constant. When the airflow is turbulent, the apparent airflow resistance increases with an increase of volume velocity and the term “airflow resistance” does not apply.  
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1.1 This test method covers the measurement of airflow resistance and the related measurements of specific airflow resistance and airflow resistivity of porous materials that can be used for the absorption and attenuation of sound. Materials cover a range from thick boards or blankets to thin mats, fabrics, papers, and screens. When the material is anisotropic, provision is made for measurements along different axes of the specimen.  
1.2 This test method is designed for the measurement of values of specific airflow resistance ranging from 100 to 10 000 mks rayls (Pa·s/m) with linear airflow velocities ranging from 0.5 mm/s to 50 mm/s and pressure differences across the specimen ranging from 0.1 Pa to 250 Pa. The upper limit of this range of linear airflow velocities is a point at which the airflow through most porous materials is in partial or complete transition from laminar to turbulent flow.  
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cgs acoustic ohm  
mks acoustic ohm (Pa·s/m3)  
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cgs rayl  
mks rayl (Pa·s/m)  
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cgs rayl/cm  
mks rayl/m (Pa·s/m2)  
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cgs rayl/in.  
mks rayl/m (Pa·s/m2)  
394  
mks rayl/in.  
mks rayl/m (Pa·s/m2)  
39.4  
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Standard Test Method for Measurement and Reporting of Masking Sound Levels Using A-Weighted and One-Third-Octave-Band Sound Pressure Levels

SIGNIFICANCE AND USE
5.1 Acoustical performance is dependent on many factors (see Guide E1374 for a discussion on general office acoustical considerations). One of these factors is the masking sound. The masking spectrum shape and level must conform within specified tolerances throughout the treated area. The measurement and recording of these parameters are addressed in this test method.  
5.2 The results from this test method are used to determine if the masking sound meets a particular specification.
SCOPE
1.1 This test method specifies the procedure used to measure the masking sound in terms of A-weighted and one-third-octave-band sound pressure levels.  
1.2 The results of this test method can be used to determine if and where the masking sound meets (or does not meet) a particular specification.  
1.3 This test method does not evaluate the overall acoustical environment. It is intended only to measure and report the masking sound levels.  
1.4 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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