This 1999 edition of the Rounded Industrial Duct Construction Standards expands the scope of the 1977 version, and updates the original text to incorporate a revised theory of design, new materials and more "user friendly" tables. As alternatives to table use, the publication has a manual calculation procedure using equations and fully developed examples, and offers optional calculation software. The book also includes soft metrics. 642 pp.

Features:

• Offers a standardized, engineered basis for design and construction of industrial ducts of Classes 1 to 5.
  
• Includes a spiral duct chapter for Classes 1 and 2
  
• Covers design pressures ranging from 30" w.g. negative to 50" w.g. positive, plus carbon and galvanized steel tables.
  
• Changes to the manual include expanded tables for stainless steel and aluminum, expanded tables for duct sizes up to 96 inches in diameter, introduction of a new Duct Class 5 for systems handling corrosives, and spiral lockseam pipe.

Now includes tabs!!