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ASTM D7433-19

(Test Method)

Standard Test Method for Measuring Surface Water Absorption of Overlaid Wood-Based Panels

Standard Test Method for Measuring Surface Water Absorption of Overlaid Wood-Based Panels

SIGNIFICANCE AND USE
3.1 Water absorptiveness through the surface of an overlaid panel is a function of various characteristics of the overlay and substrate, including overlay resin content, thickness of the overlay, porosity, and permeability.  
3.2 This test method is useful in comparing the water absorption characteristics of different overlaid panel products. The results from this test method are influenced by both the performance of the overlay system and the panel substrate. Therefore, the results are appropriate for comparison of the relative performance of an overlay system when tested over similar or matched panel substrates.
Note 1: Panel attributes that may influence water absorption include, but are not limited to, panel type, wood species, face veneer thickness and grade, preoverlay surface treatment such as sanding, particle geometry and compaction ratio.
SCOPE
1.1 This test method covers the determination of the quantity of water absorbed in a specified time through the surface of an overlaid wood-based panel. The test method measures the rate of water gain within a controlled surface area of the overlaid panel surface when exposed to standing water. The method was adapted from the principles of Test Method D5795.  
1.2 This test method is applicable to various overlaid wood-based panels including, but not limited to, plywood (such as MDO grades and HDO grades referenced in PS 1–09), oriented strand board, medium density fiberboard, particleboard, and hardboard.  
1.3 This test method does not address sampling procedures, number of replications nor performance criteria since those details vary depending upon the purpose of the testing and the type of product. The method is specific to the panel surface and does not evaluate water absorption or edge swell that may occur along panel edges. The method does not consider the variables related to in-service moisture conditions and therefore does not claim to directly relate to water absorption that may occur in actual panel use situations.  
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.  
1.5 This test method 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 test method 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.

General Information

Status
Published
Publication Date
31-Mar-2019
ICS
79.060.01 - Wood-based panels in general
Technical Committee
D07 - Wood
Drafting Committee
D07.03 - Panel Products
Current Stage
Ref Project

Relations

Refers
ASTM D4442-15 - Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
Effective Date
01-Jun-2015
Refers
ASTM D5795-16 - Standard Test Method for Determination of Liquid Water Absorption of Coated Wood and Wood Based Products Via “Cobb Ring” Apparatus
Effective Date
15-Jul-2016
Refers
ASTM D4442-16 - Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
Effective Date
15-Nov-2016
Refers
ASTM D4442-20 - Standard Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
Effective Date
01-Mar-2020

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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: D7433 − 19
Standard Test Method for
Measuring Surface Water Absorption of Overlaid Wood-
1
Based Panels
This standard is issued under the fixed designation D7433; 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 mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
1.1 This test method covers the determination of the quan-
tityofwaterabsorbedinaspecifiedtimethroughthesurfaceof
2. Referenced Documents
an overlaid wood-based panel. The test method measures the
2
2.1 ASTM Standards:
rate of water gain within a controlled surface area of the
D5795Test Method for Determination of Liquid Water
overlaid panel surface when exposed to standing water. The
Absorption of Coated Wood and Wood Based Products
method was adapted from the principles of Test Method
Via “Cobb Ring” Apparatus
D5795.
D4442Test Methods for Direct Moisture Content Measure-
1.2 This test method is applicable to various overlaid
ment of Wood and Wood-Based Materials
3
wood-based panels including, but not limited to, plywood
2.2 Other Standards:
(suchasMDOgradesandHDOgradesreferencedinPS1–09),
PS 1–09U.S. Voluntary Product Standard, Structural Ply-
oriented strand board, medium density fiberboard,
wood
particleboard, and hardboard.
3. Significance and Use
1.3 This test method does not address sampling procedures,
3.1 Water absorptiveness through the surface of an overlaid
number of replications nor performance criteria since those
panel is a function of various characteristics of the overlay and
details vary depending upon the purpose of the testing and the
substrate, including overlay resin content, thickness of the
typeofproduct.Themethodisspecifictothepanelsurfaceand
overlay, porosity, and permeability.
does not evaluate water absorption or edge swell that may
occur along panel edges. The method does not consider the
3.2 This test method is useful in comparing the water
variables related to in-service moisture conditions and there-
absorption characteristics of different overlaid panel products.
fore does not claim to directly relate to water absorption that
The results from this test method are influenced by both the
may occur in actual panel use situations.
performance of the overlay system and the panel substrate.
Therefore, the results are appropriate for comparison of the
1.4 The values stated in SI units are to be regarded as
relative performance of an overlay system when tested over
standard. The values given in parentheses are for information
similar or matched panel substrates.
only.
1.5 This test method does not purport to address all of the NOTE 1—Panel attributes that may influence water absorption include,
butarenotlimitedto,paneltype,woodspecies,faceveneerthicknessand
safety concerns, if any, associated with its use. It is the
grade,preoverlaysurfacetreatmentsuchassanding,particlegeometryand
responsibility of the user of this test method to establish
compaction ratio.
appropriate safety, health, and environmental practices and
determine the applicability of regulatory limitations prior to 4. Test Apparatus and Materials
use.
4.1 Rings, formed by cut sections of metal or plastic pipe
1.6 This international standard was developed in accor- withinsidediameterofapproximately108mm(4.25in.)which
dance with internationally recognized principles on standard-
can be sealed to the overlaid panel with silicone or elastomeric
ization established in the Decision on Principles for the sealant.
Development of International Standards, Guides and Recom-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
This test method is under the jurisdiction ofASTM Committee D07 on Wood Standards volume information, refer to the standard’s Document Summary page on
and is the direct responsibility of Subcommittee D07.03 on Panel Products. the ASTM website.
3
Current edition approved April 1, 2019. Published June 2019. Originally Available from National Institute of Standards and Technology (NIST), 100
approved in 2008. Last previous edition approved in 2013 as D7433–13. DOI: Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov/
10.1520/D7433-19. standards
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D74
...

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: D7433 − 13 D7433 − 19
Standard Test Method for
Measuring Surface Water Absorption of Overlaid Wood-
1
Based Panels
This standard is issued under the fixed designation D7433; 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 test method covers the determination of the quantity of water absorbed in a specified time through the surface of an
overlaid wood-based panel. The test method measures the rate of water gain within a controlled surface area of the overlaid panel
surface when exposed to standing water. The method was adapted from the principles of Test Method D5795.
1.2 This test method is applicable to various overlaid wood-based panels including, but not limited to, plywood (such as MDO
grades and HDO grades referenced in PS 1–09), oriented strand board, medium density fiberboard, particleboard, and hardboard.
1.3 This test method does not address sampling procedures, number of replications nor performance criteria since those details
vary depending upon the purpose of the testing and the type of product. The method is specific to the panel surface and does not
evaluate water absorption or edge swell that may occur along panel edges. The method does not consider the variables related to
in-service moisture conditions and therefore does not claim to directly relate to water absorption that may occur in actual panel
use situations.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.5 This test method 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 test method to establish appropriate safety safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D5795 Test Method for Determination of Liquid Water Absorption of Coated Wood and Wood Based Products Via “Cobb Ring”
Apparatus
D4442 Test Methods for Direct Moisture Content Measurement of Wood and Wood-Based Materials
3
2.2 Other Standards:
PS 1–09 U.S. Voluntary Product Standard, Structural Plywood
3. Significance and Use
3.1 Water absorptiveness through the surface of an overlaid panel is a function of various characteristics of the overlay and
substrate, including overlay resin content, thickness of the overlay, porosity, and permeability.
3.2 This test method is useful in comparing the water absorption characteristics of different overlaid panel products. The results
from this test method are influenced by both the performance of the overlay system and the panel substrate. Therefore, the results
are appropriate for comparison of the relative performance of an overlay system when tested over similar or matched panel
substrates.
1
This test method is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.03 on Panel Products.
Current edition approved Aug. 1, 2013April 1, 2019. Published September 2013June 2019. Originally approved in 2008. Last previous edition approved in 20082013 as
D7433D7433 – 13.–08. DOI: 10.1520/D7433-13.10.1520/D7433-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov/standards
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D7433 − 19
NOTE 1—Panel attributes that may influence water absorption include, but are not limited to, panel type, wood species, face veneer thickness and grade,
preoverlay surface treatment such as sanding, p
...

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SCOPE
1.1 This practice sets forth minimum criteria and evaluation requirements for products employing the use of different systems to trace wood fiber to sources operating under different forest management or forest certification systems.  
1.2 The purpose of this practice is to provide wood products manufacturers, distributors, and retailers with a system to provide clear, objective information to communicate to consumers regarding product conformance to different wood fiber tracing systems within specific forest management or forest certification programs. It provides a structure that segregates the different types of labels and tracing systems in use among major forest certification standards and other voluntary and regulatory standards governing the production of forest products.
Note 1: The principles in this practice apply internationally, provided that the required information is available to support categorization. For example, products certified to the globally recognized forest certification standards will meet the “Certified Sources” category regardless of their origin, and documented risk assessments (noted in Appendix X5) provide the basis upon which raw materials sourced from Canada and the United States can be deemed to meet the “Legal Sources” category. To categorize raw materials sourced outside of Canada and the United States as “Legal Sources,” it is recommended that the adopting entity develop supplemental provisions to address country-specific issues as needed.  
1.2.1 This practice provides an objective basis to differentiate among:
1.2.1.1 Non-controversial (that is, legal) sources of forest products,
1.2.1.2 Responsible sources of forest products (that is, non-controversial sources together with certified procurement systems or from forests managed using responsible practices), and
1.2.1.3 Certified sources of forest products (that is, non-controversial sources together with certified chain of custody).  
1.2.2 This practice is intended to provide a framework to help wood product vendors identify the competent and reliable evidence needed to substantiate product claims as required by the U.S. Federal Trade Commission’s Guides for ...

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ASTM
ASTM D1166-21(Test Method)
Standard Test Method for Methoxyl Groups in Wood and Related Materials

SIGNIFICANCE AND USE
3.1 Most of the methoxyl in wood is attributable to the lignin. This test method is used extensively in the study of lignin.
SCOPE
1.1 This test method covers the determination of methoxyl groups in wood and related materials (1-7).2 The test method is applicable to milled wood or sawdust, or by suitable adjustment in size of the test specimen, to fractions isolated from wood and lignin.  
1.2 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. Specific precautionary statements are given in Section 6.  
1.3 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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ASTM
ASTM D5456-21e1(Specification)
Standard Specification for Evaluation of Structural Composite Lumber Products

ABSTRACT
This specification recognizes the complexity of structural glued products. This specification, or parts thereof, shall be applicable to structural composite lumber portions of manufactured structural components. Tests shall be performed to determine the properties of the material in accordance to the following test methods: moisture content measurement; bending; tension parallel to grain; compression parallel to grain; compression perpendicular to grain; longitudinal shear; connections; bond quality; product durability; edgewise bending durability; lateral edge nail durability; thickness swell; and density gradient through the thickness.
SCOPE
1.1 This specification recognizes the complexity of structural glued products. Consequently, this specification covers both specific procedures and statements of intent that sampling and analysis must relate to the specific product.  
1.2 This specification was developed in the light of currently manufactured products as defined in 3.2. Materials that do not conform to the definitions are beyond the scope of this specification. A brief discussion is found in Appendix X2.  
1.3 Details of manufacturing procedures are beyond the scope of this specification.  
Note 1: There is some potential for manufacturing variables to affect the properties of members that are loaded for sustained periods of time. Users of this specification are advised to consider the commentary on this topic in Appendix X2.  
1.4 This specification primarily considers end use in dry service conditions defined in the governing code-referenced design standards, such as in most covered structures. The conditioning environment of 6.3 is considered representative of such uses.  
1.5 The performance of structural composite lumber is affected by wood species, wood element size and shape, and adhesive and production parameters. Therefore, products produced by each individual manufacturer shall be evaluated to determine their product properties, regardless of the similarity in characteristics to products produced by other manufacturers. Where a manufacturer produces product in more than one facility, each production facility shall be evaluated independently. For additional production facilities, any revisions to the full qualification program in accordance with this specification shall be approved by the independent qualifying agency.  
1.6 This specification is intended to provide manufacturers, regulatory agencies, and end users with a means to evaluate a composite lumber product intended for use as a structural material.  
1.7 This specification covers initial qualification sampling, mechanical and physical tests, analysis, and design value assignments. Requirements for a quality-control program and cumulative evaluations are included to ensure maintenance of allowable design values for the product.  
1.8 This specification, or parts thereof, shall be applicable to structural composite lumber portions of manufactured structural components.  
1.9 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.  
1.10 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.  
1.11 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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