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NFPA
91(04)
Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists,
and Noncombustible Particulate Solids
Approx.
15 pp., 2004
$39.00
Prevent exhaust systems from spreading fire and increasing the risk of explosion!
NFPA 91 provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of exhaust systems for air conveying of vapors, gases, mists, and noncombustible particulate solids except as modified or amplified by other applicable NFPA standards.
Changes to the 2004 edition include:
-
Expanded conditions under which flammable concentrations can exceed 25 percent of the lower flammable limit
-
Revised provisions for duct hanging and bracing design to account for both automatic sprinkler discharge as well as liquid cleaning solutions
-
A new provision allowing ductwork to be wrapped or encased to achieve the intended fire resistance rating.
TABLE OF CONTENTS:
NFPA 91 Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids 2004 Edition
Chapter 1 Administration
Chapter 2 Referenced Publications
Chapter 3 Definitions
Chapter 4 Design and Construction
Chapter 5 Corrosive Materials
Chapter 6 Air-Moving Devices
Chapter 7 Ignition Sources
Chapter 8 Fire Protection
Chapter 9 Testing and Maintenance
Annex A Explanatory Material
Annex B Informational References
Index
