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NFPA 33: 易燃或可燃材料的喷雾应用

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NFPA 33: 易燃或可燃材料的喷雾应用
NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials
NFPA 33: 易燃或可燃材料的喷雾应用
 
1.1* Scope.
1.1.1 This standard shall apply to the spray application of flammable or combustible materials, as herein defined, either continuously or intermittently by any of the following methods:
(1) Compressed air atomization
(2) Airless or hydraulic atomization
(3) Electrostatic application methods
(4) Other means of atomized application
1.1.2 This standard shall also apply to the application of flammable or combustible materials, as herein defined, either continuously or intermittently by any of the following methods:
(1) Fluidized bed application methods
(2) Electrostatic fluidized bed application methods
(3) Other means of fluidized application
1.1.3 This standard shall also apply to spray application of water-borne, water-based, and water-reducible materials that contain flammable or combustible liquids or that produce combustible deposits or residues.
1.1.4* This standard shall not apply to spray application processes or operations that are conducted outdoors.
1.1.5* This standard shall not apply to the use of small portable spraying equipment that is not used repeatedly in the same location.
1.1.6 This standard shall not apply to the use of aerosol products in containers up to and including 710 mL (24 ounces) capacity that are not used repeatedly in the same location. (See A.1.1.5)
1.1.7 This standard shall not apply to the spray application of noncombustible materials.
1.1.8 This standard shall not apply to the hazards of toxicity or industrial health and hygiene. (See 1.2.2.)
 
 
Reduce fire and explosion hazards for workers with the 2011 NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials.
Boost fire safety on the job with the latest rules for the construction of spray rooms and spray booths, along with their electrical systems, ventilation, and fire protection systems, and for safe spray application of coatings, including handling of flammable liquids, operations, and maintenance. The 2011 edition of NFPA 33 provides requirements for automated and hand-held spray application processes, as well as specific requirements for electrostatic spray systems. NFPA 33 also includes specific requirements for hand lay-up and spraying operations for glass fiber-reinforced plastics.
Revisions in the 2011 edition that improve fire prevention and fire protection include:
·   Addition of exemptions for small quantity operations
·   Inclusion of a decision tree to assist in determining applicability of NFPA 33
·   Revision of the definition of spray area to better describe its extent
·   An improved correlation with the NEC® zone system for classifying hazardous locations
·   A reduction in the extent of hazardous (classified) areas outside spray booths and rooms, based on incident history and risk analysis
·   Incorporation of NFPA 30's concept of maximum allowable quantity (MAQ) and storage quantity limits based on these MAQs
·   Changes to requirements for spray booths and rooms that are also used for drying and curing operations
Don't take chances with flammable or combustible liquids or combustible powders. Put industry best practices to work for you with the 2011 NFPA 33. (Softbound, 44 pp., 2011)
 
 

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