Historical
CSA O112.9-2010 (2014)
O112.9-10 - Evaluation of adhesives for structural wood products (exterior exposure)
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Intended Use
CSA O112.9 specifies requirements for evaluating adhesives used to bond solid wood materials in
structural wood products designed for exterior applications. This Standard has been developed for untreated wood only, and the responsibility of the user to decide whether they wish to apply its requirements to treated wood. In addition, CSA O112.9 does not apply to adhesives intended for below-ground, ground-contact, or marine service applications.
Unlike adhesive standards CSA O112.0 through O112.8 (recently withdrawn), which relied on CSA O112.0 for their test procedures, this Standard is not restricted to a specific class of adhesives, and its test procedures are self-contained. It is also one of the few Standards that evaluate the performance of adhesives under thermal conditions corresponding to those that would be encountered during a fire by a structural wood product used in a fire-protected wood assembly. Although the motivation for developing this Standard was to deal with the types of wood adhesives not covered by the original CSA O112 Series-1977, this Standard may be applied to all types of adhesives.
Preface
This is the second edition of CSA O112.9, Evaluation of adhesives for structural wood products (exterior exposure). It supersedes the previous edition, published in 2004.Scope
1.1 This Standard specifies requirements for evaluating adhesives used to bond solid wood materials in structural wood products designed for exterior applications. Note: See Annex C for additional information on exterior exposure and other moisture exposure categories for structural wood adhesives.1.2 This Standard specifies requirements for evaluating the resistance of adhesives to (a) shear caused by compression loading, under both wet and dry conditions; (b) delamination during accelerated exposure to wetting and drying; and (c) deformation under static shear loading during exposure to heat, high humidity, or combined heat and high humidity.
1.3 This Standard does not apply to adhesives intended for below-ground, ground-contact, or marine service applications.
1.4 This Standard is not intended for the assessment of the effects of chemical treatments of wood on adhesive performance.
1.5 In CSA Standards, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; may is used to express an option or that which is permissible within the limits of the standard; and can is used to express possibility or capability. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
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