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NFPA 91

Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Particulate Solids

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Organization: NFPA
Publication Date: 1 January 2020
Status: active
Page Count: 30
scope:

This standard provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of exhaust systems for air conveying of vapors, gases, mists, and particulate solids as they relate to fire and/or explosion prevention, except as modified or amplified by other applicable NFPA standards.

This standard does not cover exhaust systems for conveying combustible particulate solids that are covered in other NFPA standards (see A.1.1).

Document History

NFPA 91
January 1, 2020
Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Particulate Solids
This standard provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of exhaust systems for air conveying of vapors, gases, mists, and...
January 1, 2015
Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Particulate Solids
This standard provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of exhaust systems for air conveying of vapors, gases, mists, and...
January 1, 2010
Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids
This standard provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of exhaust systems for air conveying of vapors, gases, mists, and...
January 1, 2004
Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids
This standard provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of exhaust systems for air conveying of vapors, gases, mists, and...
January 1, 1999
Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids
(footnote *) This standard provides minimum requirements for the design, construction, installation, operation, testing, and maintenance of exhaust systems for air conveying of materials except as...
January 1, 1995
Standard for Exhaust Systems for Air Conveying of Materials
A description is not available for this item.
February 10, 1992
STANDARD FOR EXHAUST SYSTEMS FOR AIR CONVEYING OF MATERIALS
A description is not available for this item.
February 5, 1990
STANDARD FOR THE INSTALLATION OF BLOWER AND EXHAUST SYSTEMS FOR DUST, STOCK, AND VAPOR REMOVAL OR CONVEYING
A description is not available for this item.
June 29, 1983
STANDARD FOR THE INSTALLATION OF BLOWER AND EXHAUST SYSTEMS FOR DUST, STOCK AND VAPOR REMOVAL OR CONVEYING
A description is not available for this item.

References

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