CHANTILLY, Va. - The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) has announced that the third edition of theSheet Metal Welding Guideis now available for public review.

According to SMACNA, this edition has been revised to reflect the latest welding technology and methods. Designed to help contractors understand and manage their welding operation more profitably, it includes updated coverage of welding processes, flux cored wire guidelines, and the latest equipment. The safety chapter covers such items as health effects, hazard controls, and safety procedures. Other chapters include guidelines for developing welding procedures, controlling weld quality, estimating, hiring and training welders, and welder certification.

The complete document is available for public review until Friday, May 5, at Click on "Technical Services," then "Technical Papers/Guidelines" to access the document.

Reviewer's comments should reference page, figure, and table numbers, as well as specific paragraphs when dealing with text. All comments should include specific recommendations for improvement.

Send all comments to Bill Navas, project manager, at SMACNA, 4201 Lafayette Center Drive, Chantilly, VA 20151-1209, fax 703-803-3732, or e-mail

Publication date: 03/27/2006