ASTM D7374-08(2015)

Standard Practice for Evaluating Elevated Temperature Performance of Adhesives Used in End-Jointed Lumber

SIGNIFICANCE AND USE
5.1 End-jointed lumber studs used in fire resistance-rated assemblies shall be able to support the superimposed design load for the specified time under an elevated temperature exposure, when a wall assembly is exposed to a standard fire specified in Test Methods E119. Light-weight wood assemblies utilize gypsum wallboard or other types of membrane protection to accomplish a requisite fire resistance rating for the assembly. However, wood studs and the end-joints in the studs shall resist the developed elevated temperature environment for the duration of the rating. This practice provides a method for evaluating the elevated temperature performance of an adhesive used in end-jointed lumber as compared with the elevated temperature performance of solid wood.
SCOPE
1.1 This standard practice is to be used to evaluate the elevated temperature performance of adhesives used in end-jointed lumber.  
1.2 A symmetric wall assembly containing end-jointed lumber studs is exposed to a standard fire exposure specified in Test Methods E119.  
1.3 The wall assembly shall sustain the applied load during a standard fire exposure specified in Test Methods E119 for a period of 60 min or more.  
1.4 This practice is used to evaluate the performance of adhesives used in end-jointed lumber to heat and flame under controlled conditions, but it does not by itself incorporate all factors required for fire hazard or fire risk assessment under actual fire conditions.  
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2015
• ICS: 83.180 - Adhesives
• Technical Committee: D07 - Wood
• Drafting Committee: D07.02 - Lumber and Engineered Wood Products

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D7374 − 08 (Reapproved 2015)
Standard Practice for
Evaluating Elevated Temperature Performance of Adhesives
Used in End-Jointed Lumber
This standard is issued under the fixed designation D7374; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Wood-frame Walls for Standard Fire-Resistance Tests
E119Test Methods for Fire Tests of Building Construction
1.1 This standard practice is to be used to evaluate the
and Materials
elevated temperature performance of adhesives used in end-
F1667SpecificationforDrivenFasteners:Nails,Spikes,and
jointed lumber.
Staples
1.2 Asymmetricwallassemblycontainingend-jointedlum-
2.2 Other Standards:
ber studs is exposed to a standard fire exposure specified in
ANSI/AF&PANDSNationalDesignSpecificationforWood
Test Methods E119. 3
Construction
1.3 The wall assembly shall sustain the applied load during
3. Terminology
a standard fire exposure specified in Test Methods E119 for a
period of 60 min or more.
3.1 Definitions of Terms Specific to This Standard:
3.1.1 end-jointed lumber—lumber containing one or more
1.4 This practice is used to evaluate the performance of
end-joints.
adhesives used in end-jointed lumber to heat and flame under
controlled conditions, but it does not by itself incorporate all 3.1.2 end-joints—a joint formed by bonding two pieces of
factors required for fire hazard or fire risk assessment under lumber end-to-end, often by machining a set of interlocking
actual fire conditions. “fingers” (finger-joint) into each end of adjoining pieces, using
an adhesive to form an adhesive bonded joint.
1.5 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. Summary of Practice
conversions to SI units that are provided for information only
4.1 This practice shall be used to evaluate end-jointed
and are not considered standard.
lumberadhesivesintendedforuseinend-jointedlumberbyfire
1.6 This standard does not purport to address all of the
testing a wall assembly under a vertical load associated with
safety concerns, if any, associated with its use. It is the
the highest visual grade for the species group of Douglas
responsibility of the user of this standard to establish appro-
Fir–Larch or Southern Pine.The results are deemed applicable
priate safety and health practices and determine the applica-
to all other species, grades, and joint configurations.
bility of regulatory limitations prior to use.
NOTE 1—In the United States, the visual grade and species with the
highest capacity in theANSI/AF&PANDS are Select Structural Douglas-
2. Referenced Documents
fir Larch and Dense Select Structural Southern Pine.
2.1 ASTM Standards:
C1396/C1396MSpecification for Gypsum Board
5. Significance and Use
D4688Test Method for Evaluating StructuralAdhesives for
5.1 End-jointed lumber studs used in fire resistance-rated
Finger Jointing Lumber
assemblies shall be able to support the superimposed design
D6513Practice for Calculating the Superimposed Load on
load for the specified time under an elevated temperature
exposure, when a wall assembly is exposed to a standard fire
specifiedinTestMethodsE119.Light-weightwoodassemblies
This practice is under the jurisdiction ofASTM Committee D07 on Wood and
is the direct responsibility of Subcommittee D07.02 on Lumber and Engineered utilize gypsum wallboard or other types of membrane protec-
Wood Products.
tion to accomplish a requisite fire resistance rating for the
Current edition approved May 1, 2015. Published June 2015. Originally
assembly. However, wood studs and the end-joints in the studs
approved in 2008. Last previous edition approved in 2008 as D7374 – 08. DOI:
shallresistthedevelopedelevatedtemperatureenvironmentfor
10.1520/D7374-08R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on Available from American Forest and Paper Association (AF&PA), 1111 19th
the ASTM website. St., NW, Suite 800, Washington, DC 20036, http://www.afandpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7374 − 08 (2015)
the duration of the rating. This practice provides a method for common nails or 3-16d box nails. The second top plate is
evaluating the elevated temperature performance of an adhe- attachedtothefirsttopplateusingasinglerowof16dcommon
sive used in end-jointed lumber as compared with the elevated
nails at 16 in. (406 mm) on center or 1-16d box nails at 12 in.
temperature performance of solid wood.
(305 mm) on center. Nails shall be in accordance with
Specification F1667.
6. Wall Assembly
NOTE 3—In Fig. 1, double top plates are located at the bottom of test
6.1 A load-bearing wall meeting the following assembly
wall to be adjacent to the movable load beam. Double top plates are
description shall be used.
located at the top of the test wall when the load beam is along the top.
6.1.1
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D7374 − 08 D7374 − 08 (Reapproved 2015)
Standard Practice for
Evaluating Elevated Temperature Performance of Adhesives
Used in End-Jointed Lumber
This standard is issued under the fixed designation D7374; 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.
1. Scope
1.1 This standard practice is to be used to evaluate the elevated temperature performance of adhesives used in end-jointed
lumber.
1.2 A symmetric wall assembly containing end-jointed lumber studs is exposed to a standard fire exposure specified in Test
Methods E119.
1.3 The wall assembly shall sustain the applied load during a standard fire exposure specified in Test Methods E119 for a period
of 60 min or more.
1.4 This practice is used to evaluate the performance of adhesives used in end-jointed lumber to heat and flame under controlled
conditions, but it does not by itself incorporate all factors required for fire hazard or fire risk assessment under actual fire
conditions.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
C1396/C1396M Specification for Gypsum Board
D4688 Test Method for Evaluating Structural Adhesives for Finger Jointing Lumber
D6513 Practice for Calculating the Superimposed Load on Wood-frame Walls for Standard Fire-Resistance Tests
E119 Test Methods for Fire Tests of Building Construction and Materials
F1667 Specification for Driven Fasteners: Nails, Spikes, and Staples
2.2 Other Standards:
ANSI/AF&PA NDS National Design Specification for Wood Construction
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 end-jointed lumber—lumber containing one or more end-joints.
3.1.2 end-joints—a joint formed by bonding two pieces of lumber end-to-end, often by machining a set of interlocking “fingers”
(finger-joint) into each end of adjoining pieces, using an adhesive to form an adhesive bonded joint.
This practice is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.02 on Lumber and Engineered Wood
Products.
Current edition approved Oct. 15, 2008May 1, 2015. Published November 2008June 2015. Originally approved in 2008. Last previous edition approved in 2008 as D7374
– 08. DOI: 10.1520/D7374-08.10.1520/D7374-08R15.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from American Forest and Paper Association (AF&PA), 1111 19th St., NW, Suite 800, Washington, DC 20036, http://www.afandpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7374 − 08 (2015)
4. Summary of Practice
4.1 This practice shall be used to evaluate end-jointed lumber adhesives intended for use in end-jointed lumber by fire testing
a wall assembly under a vertical load associated with the highest visual grade for the species group of Douglas Fir–Larch or
Southern Pine. The results are deemed applicable to all other species, grades, and joint configurations.
NOTE 1—In the United States, the visual grade and species with the highest capacity in the ANSI/AF&PA NDS are Select Structural Douglas-fir Larch
and Dense Select Structural Southern Pine.
5. Significance and Use
5.1 End-jointed lumber studs used in fire resistance-rated assemblies shall be able to support the superimposed design load for
the specified time under an elevated temperature exposure, when a wall assembly is exposed to a standard fire specified in Test
Methods E119. Light-weight wood assemblies utilize gypsum wallboard or other types of membrane protection to accomplish a
requisite fire resistance rating for the assembly. However, wood studs and the end-joints in the studs shall resist the developed
elevated temperature environment for the duration of the rating. This practice provides a method for evaluating the elevated
temperature performance of an adhesive used in end-jointed lumber as compared with the elevated temperature performance of
solid wood.
6. Wall Assembly
6.1 A load-bearing wall meeting the following assembly description shall be used.
6.1.1 Framing Elements:
6.1.1.1 Studs—Nine pieces of 2 × 4 (nominal) end-jointed lumber shall be used for wall studs. Each piece of end-jointed lumber
shall be 115.5 in. (2934 mm) long and have at least one end-joint within the middle third of the length. Studs shall be symmetrically
placed within the 10-ft (3.05-m) long by 10-ft (3.05-m) high wall assembly with int
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