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Address fire and electrical safety concerns more effectively with the 2018 edition of NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials.

Protect workers by addressing fire, explosion, and electrical hazards in industries that spray flammable and combustible liquids, including waterborne materials that contain flammable or combustible residues. The 2018 edition of NFPA 33 has the latest rules for the construction of spray rooms, spray booths, and spray areas, along with their electrical installations, ventilation, and fire protection systems; and for safe spray application of coatings, including handling of flammable liquids, operations, and maintenance. NFPA 33 requirements address automated and hand-held spray application processes, as well as specific requirements for electrostatic and powder coating spray systems. The Standard also includes specific requirements for hand lay-up and spraying operations for glass fiber-reinforced plastics.

Major changes improve consistency and clarify requirements, making this edition essential for engineers, designers, contractors, and installers.
  • Chapter 1, Administration clarifies document application. For example, Chapter 14 shall apply only to miscellaneous spray operations, and Chapter 18 shall apply only to spray application processes or operations that are conducted in temporary membrane enclosures both inside and outside buildings and structures.
  • Modified Chapter 3: Definitions is parallel with other NFPA® documents placing noncombustible material, limited-combustible material, and classification of liquids and determination of flash points in a General Requirements section. Changes are consistent with NFPA 1: Fire Code, NFPA 30: Flammable and Combustible Liquids Code, and NFPA 5000®: Building Construction and Safety Code®.
  • Updated Chapter 4: General Requirements is applicable to all spray operations. Changes clarify definitions and spraying location, making them consistent with Chapter 5 requirements.
  • Changes in Chapter 5: Construction and Design of Spray Areas, Spray Rooms, and Spray Booths address the confusion between spray rooms and spray booths by providing requirements for each type of spray location.
  • Revised Chapter 6: Electrical and Other Sources of Ignition clarifies movement power vehicles in spray areas. Revised figures improve consistency and clarify electrical classification requirements.
  • Updates in Chapter 7: Ventilation clarify heating of recirculated air and the manifolding of exhaust ducts.
Protect lives in facilities where flammable or combustible liquids or combustible powders are sprayed. Follow the industry best practices with today's NFPA 33.
 

Document History

  1. NFPA (Fire) 33

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    Standard for Spray Application Using Flammable or Combustible Materials, 2018 Edition

    • Most Recent
  2. NFPA (Fire) 33


    Standard for Spray Application Using Flammable or Combustible Materials, 2016 Edition

    • Historical Version
  3. NFPA (Fire) 33


    Standard for Spray Application Using Flammable or Combustible Materials, 2011 Edition

    • Historical Version
  4. NFPA (Fire) 33


    Spray Application Using Flammable and Combustible Materials, 2007 Edition

    • Historical Version