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ASTM announces standard on adhesives symbol for CAD.

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March 16, 2009 - ASTM D7447, Practice for Symbolizing Adhesive Applications, provides way for engineers to represent adhesives on computer-aided design drawing. Symbol described in ASTM D7447 originated with focus group that ASC conducted with engineers, designers, and architects. Results indicated that those questioned would be more apt to specify adhesives if they could be represented on CAD drawing, rather than current method of embedding comments in "notes" section.

ASTM International New Standard on Adhesives Symbol for CAD

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ASTM International
100 Barr Harbor Dr., Box C700
West Conshohocken, PA, 19428-2959

Press release date: March 11, 2009

Adhesives Symbol for CAD Is Released: ASTM and ASC Collaboration Results in New Standard

W. CONSHOHOCKEN, Pa., 11 March 2009-A new ASTM International standard, ASTM D7447, Practice for Symbolizing Adhesive Applications, provides a convenient way for engineers to represent adhesives on a computer-aided design drawing. The standard, a collaborative effort between ASTM and the Adhesive and Sealant Council, is under the jurisdiction of Subcommittee D14.60 on Adhesive Material Classification System, which is part of ASTM International Committee D14 on Adhesives.

Lawrence Sloan, president of the Adhesive and Sealant Council and a D14 member, says that the symbol described in ASTM D7447 originated with a focus group that ASC conducted with engineers, designers and architects to learn about their perceptions of adhesives. The focus group results indicated that those questioned would be more apt to specify adhesives if they could be represented conveniently on a CAD (computer-aided design) drawing, rather than the current method of embedding comments in a "notes" section.

Designers, engineers, architects and anyone else preparing a CAD drawing would benefit from use of ASTM D7447, according to Sloan.

ASC based the methodology of the symbol on the American National Standards Institute/American Welding Society A2.3 standard, Symbols for Welding and Nondestructive Testing and the International Organization for Standardization (ISO) 15785 standard, Technical Drawings-Symbolic Presentation and Indication of Adhesive, Fold and Pressed Joints.

"ASC approached ASTM in 2006 with the idea of creating a new standard in tandem with the symbol, as it was felt that standardization would help build international credibility within the design-engineering community," says Sloan. "Plus, we received grassroots interest from Mercedes and other automotive companies in Germany supporting our decision to work with ASTM International."

ASC has also developed an electronic file based on ASTM D7447 that consists of a series of fields that the designer can populate with information such as adhesive chemistry type and physical form, surface preparation, curing information and more. "The electronic file is a convenient way for the designer to represent an adhesive's many characteristics in one symbol by eliminating the tedious task of manually adding adhesives in the 'notes' section of CAD program," says Sloan.

ASTM International standards are available for purchase from Customer Service (phone: 610-832-9585; or at For technical Information, contact Lawrence Sloan, Adhesive and Sealant Council, Bethesda, Md. (phone: 301-986-9700 ext. 111; Committee D14 meets April 19-21 at the April committee week in Vancouver, British Columbia, Canada.

ASTM International welcomes and encourages participation in the development of its standards. ASTM's open consensus process, using advanced Internet-based standards development tools, ensures worldwide access for all interested individuals. For more information on becoming an ASTM member, please contact Joe Hugo, ASTM International (phone: 610-832-9740;

Established in 1898, ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions around the globe.
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