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New Test Method Evaluates Adhesives for Use in Engineered Wood Products Industry
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 September 2006 Tech News

New Test Method Evaluates Adhesives for Use in Engineered Wood Products Industry

A new ASTM International standard, D 7247, Test Method for Evaluating the Shear Strength of Adhesive Bonds in Laminated Wood Products at Elevated Temperature, will be an important new tool for anyone working with engineered wood products. The proposal for D 7247 originated in Committee D07 on Wood and members of both that committee and Committee D14 on Adhesives worked together to develop it. The standard is now under the jurisdiction of Subcommittee D14.30 on Wood Adhesives, which is part of Committee D14.

The new test method can be used to evaluate the comparative shear strength of a planar adhesive bond at both ambient and elevated temperatures relative to the performance of solid wood under the same conditions.

“The engineered wood products industry believes that there is a need to demonstrate that adhesives used to manufacture engineered wood products will perform comparably with the wood substrates at elevated temperatures,” says Borjen Yeh, director, technical services division, APA — The Engineered Wood Association.

Yeh says that the new standard will be referenced in engineered wood product standards such as D 5055, Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists, and D 5456, Specification for Evaluation of Structural Composite Lumber Products. In addition, other product standards may eventually reference D 7247. //

Technical Information: Borjen Yeh, APA — The Engineered Wood Association, Tacoma, Wash.
Phone: 253/620-7467

ASTM Staff: Kevin Shanahan
Phone: 610/832-9737

Upcoming Meeting (D14): Oct. 23-25, Atlanta, Ga., October Committee Week
Upcoming Meeting (D07): Oct. 16-18, Forest Products Laboratory, Madison, Wis.

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