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ASTM D5266-13(2020)

(Practice)

Standard Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded Joints

Standard Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded Joints

SIGNIFICANCE AND USE
4.1 An estimate of wood failure is one of the principal means for determining the quality of an adhesively bonded wood joint.  
4.2 When evaluated after a water soaking, water soaking and drying, or boiling and drying, the percentage of estimated wood failure is an important criterion for qualifying adhesives for use in plywood, laminated structural timber, adhesively bonded wood products and for daily quality control of the processes for manufacturing various adhesively bonded wood products including but not limited to plywood and laminated timbers. Standards that use the percentage of wood failure are included in Section 2.  
4.3 In plywood manufactured from North American softwood species, the percentage of wood failure of Test Method D906 specimens, tested wet after either a vacuum-pressure soak-dry or boil-dry treatment, correlates with the percentage of panels that delaminate in outdoor exposure without protection.7  
4.4 Similar correlations for other products have not been published.
SCOPE
1.1 This practice provides procedures for estimating the percentage of wood failure that occurs in plywood-shear, block-shear, finger joint test specimens, or any other bondline involving wood.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

General Information

Status
Published
Publication Date
31-Mar-2020
ICS
83.180 - Adhesives
Technical Committee
D14 - Adhesives
Drafting Committee
D14.30 - Wood Adhesives
Current Stage
Ref Project

Relations

Referred By
ASTM D907-15(2023) - Standard Terminology of Adhesives
Effective Date
01-Apr-2020
Referred By
ASTM D906-20 - Standard Test Method for Strength Properties of Adhesives in Plywood Type Construction in Shear by Tension Loading
Effective Date
01-Apr-2020
Referred By
ASTM D2339-20 - Standard Test Method for Strength Properties of Adhesives in Two-Ply Wood Construction in Shear by Tension Loading
Effective Date
01-Apr-2020
Referred By
ASTM D4688/D4688M-14(2021)e1 - Standard Test Method for Evaluating Structural Adhesives for Finger Jointing Lumber
Effective Date
01-Apr-2020
Referred By
ASTM D5824-98(2023) - Standard Test Method for Determining Resistance to Delamination of Adhesive Bonds in Overlay-Wood Core Laminates Exposed to Heat and Water
Effective Date
01-Apr-2020
Referred By
ASTM D905-08(2021) - Standard Test Method for Strength Properties of Adhesive Bonds in Shear by Compression Loading
Effective Date
01-Apr-2020

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ASTM D5266-13(2020) - Standard Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded JointsASTM D5266-13(2020) - Standard Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded Joints
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ASTM D5266-13(2020) - Standard Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded Joints
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Standards Content (Sample)

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.
Designation: D5266 − 13 (Reapproved 2020)
Standard Practice for
Estimating the Percentage of Wood Failure in Adhesive
1
Bonded Joints
This standard is issued under the fixed designation D5266; 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 D5751SpecificationforAdhesivesUsedforLaminateJoints
in Nonstructural Lumber Products
1.1 This practice provides procedures for estimating the
2.2 American National Standards:
percentage of wood failure that occurs in plywood-shear,
ANSI/HPVA HP-1-2009American National Standard for
block-shear, finger joint test specimens, or any other bondline
3
Hardwood and Decorative Plywood
involving wood.
ANSI A190.1-2012American National Standard for Wood
1.2 The values stated in SI units are to be regarded as the 3
Products—Structural Glued, Laminated Timber
standard. The values in parentheses are provided for informa-
2.3 Other Documents:
tion only.
American Plywood Association Proposed Standard Method
1.3 This standard does not purport to address all of the for Estimating Percentage Wood Failure on Plywood
4
safety concerns, if any, associated with its use. It is the
Shear Specimens
responsibility of the user of this standard to establish appro- PS 1U.S. Product Standard for Construction and Industrial
4
priate safety, health, and environmental practices and deter-
Plywood
mine the applicability of regulatory limitations prior to use. CSA O112.9Evaluation of Adhesives for Structural Wood
4
1.4 This international standard was developed in accor-
Products (Exterior Exposure)
5
dance with internationally recognized principles on standard- General Technical Report FPL-GTR-190
ization established in the Decision on Principles for the
Inspection Bureau Memorandum No. 1Interpretation of
4
Development of International Standards, Guides and Recom- Wood Failure
mendations issued by the World Trade Organization Technical
2.4 ASTM Adjunct:
Barriers to Trade (TBT) Committee. PhotographsforVisuallyEstimatingthePercentageofWood
6
Failure in Standard Adhesively Bonded Specimens
2. Referenced Documents
3. Terminology
2
2.1 ASTM Standards:
3.1 Definitions:
D905Test Method for Strength Properties of Adhesive
3.1.1 deep wood failure, n—failurethatisinvariablyseveral
Bonds in Shear by Compression Loading
to many cells away from the adhesive layer, in which the
D906Test Method for Strength Properties of Adhesives in
fracture path is strongly influenced by the grain angle and
Plywood Type Construction in Shear by Tension Loading
growth–ring structure.
D2559Specification for Adhesives for Bonded Structural
Wood Products for Use Under Exterior Exposure Condi-
3.1.2 shallow wood failure, n—failure that is invariably
tions
within the first one or two layers of cells beyond the adhesive
D4688Test Method for Evaluating StructuralAdhesives for
layer in which the fracture path is not influenced by the
Finger Jointing Lumber
wood–grain angle or growth-ring structure (see 7.7 and 8.1).
D5572SpecificationforAdhesivesUsedforFingerJointsin
3.1.3 wood failure, n—the rupturing of wood fibers in
Nonstructural Lumber Products
strength tests on bonded specimens, usually expressed as the
percentageofthetotalareainvolvedwhichshowssuchfailure.
1
This practice is under the jurisdiction ofASTM Committee D14 on Adhesives
3
and is the direct responsibility of Subcommittee D14.30 on Wood Adhesives. Available from Hardwood Plywood & Veneer Association, 1825 Michael
Current edition approved April 1, 2020. Published April 2020. Originally Faraday Drive, P.O. Box 2789, Reston, VA 20190, www.hpva.org.
4
approved in 1992. Last previous edition approved in 2013 as D5266–13. DOI: Available fromAPA–The EngineeredWoodAssociation, 7011 South 19th St.,
10.1520/D5266-13R20. Tacoma, WA 98466, www.apawood.org.
2 5
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Wood Handbook: Wood as an Engineering Material, Madison, WI: U. S.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM DepartmentofAgriculture,ForestService,ForestProductsLaboratory,508p.2010.
6
Standards volume information, refer to the standard’s Document Summary page on Available from ASTM International Headquarters. Request Adjunct No.
the ASTM website. ADJD5266. Original adjunct produced in 1991.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D5266
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SCOPE
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This specification provides the means to measure and evaluate the performance of adhesives for structural or semistructural bonding of wood-to-wood in manufactured homes. Wood as used in this specification includes lumber, plywood, particleboard, gypsum board, and all materials having woodbased surfaces at the bondline. The adhesives can be classified according to resistance to deformation: Group A or structural, and Group B or semistructural. Also, the adhesives may be designated into three types, according to their recommended use based on their resistance to water and water vapor: Type 1 for interior and exterior use, Type 2 for weather-protected interior use, and Type 3 for interior use only. Different tests shall be performed in order to determine the following properties of adhesives: shear strength, gap-filling ability, total deformation resistance, moisture and temperature limitation during fabrication, high-temperature resistance, low-temperature resistance, moisture resistance, aging, oxidation resistance, and mold resistance.
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1.1 This specification provides the means to measure and evaluate the performance of adhesives for structural or semi-structural bonding of wood-to-wood in manufactured homes. Wood as used in this specification includes lumber, plywood, particleboard, gypsum board, and all materials having wood-based surfaces at the bondline. This specification does not cover other adhesives used in manufactured homes such as adhesives for carpet, floor tile, ceramic fixtures, plastic laminates, trim and millwork, and similar nonstructural applications.  
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SCOPE
1.1 This test method covers the determination of time-dependent properties of structural adhesives in wood-to-wood bonds when specimens are subjected to shearing stresses at various levels of static load, constant temperature, and relative humidity. Apparatus and procedures are provided for direct measurement of time-dependent shear deformation (creep) and time to failure of adhesive bonds under static load. Guidelines for selecting test conditions, methods for calculating creep rate, creep strain, creep modulus, and extrapolation of time to failure, are given along with methods of presenting these data.  
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1.1 This specification covers liquid optical adhesive for use in bonding glass to glass or other transparent adherends.  
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This test method covers the determination of nonvolatile content or total solids of liquid phenol, resorcinol, and melamine adhesives with or without hardener added and containing high-boiling and low-boiling volatile organic solvents or water, or both. The equipments to be used in the test shall include a petri dish, circulating-air oven, desiccator, and analytical balance. In determining the nonvolatile content of the liquid adhesives without hardener, the procedure shall include oven-drying, cooling in a desiccator, and weighing of adhesive and quartz sand . The percent nonvolatile content shall be calculated based on the amount remaining. On the other hand, the procedure for the liquid adhesives with hardener shall include oven-drying, cooling in a desiccator, and weighing of mixed adhesives. Also, the percent nonvolatile content shall be calculated based on the amount remaining.
SCOPE
1.1 This test method covers the determination of nonvolatile content or total solids of liquid phenol, resorcinol, and melamine adhesives with or without hardener (Note 1) added and containing high-boiling and low-boiling volatile organic solvents or water, or both.  
Note 1: Some low molecular weight materials in the adhesive may be lost if hardener is not used. When a hardener is used, it must be mixed in accordance with the manufacturer's instructions.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precautions, see 5.2.  
1.4 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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