Standard Test Method for Measurement of the Normalized Insertion Loss of Doors

SIGNIFICANCE AND USE
5.1 This standard provides a method for testing the apparent sound insulating properties of doors in the field originally proposed by Morin (1).6 This allows doors to be evaluated with a result that has been found to be similar to the transmission loss.  
5.2 The results of this measurement are the normalized door insertion loss, NDIL, at individual frequencies, and the single number rating door transmission class, DTC. The insertion loss is normalized by the small change in sound level which occurs on the source side when the door is opened and closed.  
5.3 Comparative measurements using this method and the method of Test Method E90 on the same door installations in a laboratory indicate good agreement between the transmission loss and normalized door insertion loss. See Appendix X1 and Ref (2).  
5.4 The fixed-microphone and scanning methods have been compared in the field. See Appendix X2.
SCOPE
1.1 The sound insulation properties of a door are measured in a laboratory as the sound transmission loss in accordance with Test Method E90. Using those data single number rating sound transmission class (STC) is assigned. In the field, the rooms on one or both sides of a partition containing a door are often either too small or too large and absorptive to allow the apparent transmission loss (ATL) of the partition-door assembly to be measured. Even if that is not the case, the result measured is the composite ATL of the partition including the door, and not that of the door itself. Test Method E336 actually states that it is impossible to measure the ATL of a portion of a partition such as a door according to the procedures of that standard. This test method provides a method of evaluating doors in such cases using a normalized insertion loss with a resulting single number rating door transmission class, DTC. This method is intended primarily for hinged personnel doors with latching mechanisms and is limited to door openings of area less than 6 m2. The flanking effects of surrounding structure are reduced compared to E336 but not completely eliminated. In a laboratory environment, the DTC is close to or equal to the STC of the door, but in the field results less than the laboratory STC should be expected.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.

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ASTM E2964-14 - Standard Test Method for Measurement of the Normalized Insertion Loss of Doors
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E2964 − 14
Standard Test Method for
1
Measurement of the Normalized Insertion Loss of Doors
This standard is issued under the fixed designation E2964; 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 part of a set of standards for evaluating the sound-insulating properties of
building elements and the sound isolation between spaces. It is designed to measure the field sound
isolation performance of doors. Others in the set cover the airborne sound transmission loss of an
isolated partition element in a controlled laboratory environment (Test Method E90), field measure-
ments of the sound isolation between rooms in buildings (Test Method E336), the laboratory
measurement of impact sound transmission through floors (Test Method E492), the measurement of
impact sound transmission in buildings (Test Method E1007), the measurement of sound transmission
through building facades and facade elements (Guide E966), and the measurement of sound
transmission through a common plenum between two rooms (Test Method E1414).
1. Scope 1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 The sound insulation properties of a door are measured
responsibility of the user of this standard to establish appro-
in a laboratory as the sound transmission loss in accordance
priate safety and health practices and determine the applica-
with Test Method E90. Using those data single number rating
bility of regulatory limitations prior to use.
sound transmission class (STC) is assigned. In the field, the
rooms on one or both sides of a partition containing a door are
2. Referenced Documents
often either too small or too large and absorptive to allow the
2
apparent transmission loss (ATL) of the partition-door assem-
2.1 ASTM Standards:
bly to be measured. Even if that is not the case, the result
C634 Terminology Relating to Building and Environmental
measured is the composite ATL of the partition including the
Acoustics
door, and not that of the door itself.Test Method E336 actually
E90 Test Method for Laboratory Measurement of Airborne
states that it is impossible to measure the ATL of a portion of
Sound Transmission Loss of Building Partitions and
a partition such as a door according to the procedures of that
Elements
standard. This test method provides a method of evaluating
E336 Test Method for Measurement of Airborne Sound
doors in such cases using a normalized insertion loss with a
Attenuation between Rooms in Buildings
resulting single number rating door transmission class, DTC.
E413 Classification for Rating Sound Insulation
This method is intended primarily for hinged personnel doors
E492 Test Method for Laboratory Measurement of Impact
with latching mechanisms and is limited to door openings of
Sound Transmission Through Floor-Ceiling Assemblies
2
area less than 6 m . The flanking effects of surrounding
Using the Tapping Machine
structure are reduced compared to E336 but not completely
E966 Guide for Field Measurements of Airborne Sound
eliminated. In a laboratory environment, the DTC is close to or
Attenuation of Building Facades and Facade Elements
equal to the STC of the door, but in the field results less than
E1007 Test Method for Field Measurement of Tapping
the laboratory STC should be expected.
Machine Impact Sound Transmission Through Floor-
Ceiling Assemblies and Associated Support Structures
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this E1414 Test Method for Airborne Sound Attenuation Be-
tween Rooms Sharing a Common Ceiling Plenum
standard.
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
E33.03 on Sound Transmission. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved June 1, 2014. Published July 2014. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
E2964-14. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2964 − 14
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2.2 ANSI Standards: equivalent in meaning to apparent sound reduction index
S1.4 Specification for Sound Level Meters (ASRI) used by ISO 16283-1:2014.
S1.10 Pressure Calibration of Laboratory Standard Pressure
3.2.2 dire
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