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NFPA 33 2024

NFPA 33 2024

$62.08

NFPA 33: Standard for Spray Application Using Flammable or Combustible Materials

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NFPA 2024
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Help ensure safety at facilities where flammable or combustible liquids are sprayed. Follow best practices for fire and electrical safety in your workplace by referencing hazards related to the spray application of flammable or combustible materials. NFPA 33, Standard for Spray Application Using Flammable or Combustible Materials, covers vital rules for the spray application of coatings, the handling of flammable liquids, and the construction of spray rooms, spray booths, and spray areas. These rules pertain to ventilation, electrical installations, and fire protection systems, and more. The 2024 edition includes: Updated terminology to better align with NFPA 30, Flammable and Combustible Liquids Code New definitions for maximum allowable quantity and inflatable finishing workstations New requirements addressing spray finishing Revisions to Chapters 4 and 5 to align with International Fire Code requirements Added test requirements for materials used in wall or ceiling assemblies Simplified requirements and new requirements for total quantities of liquids allowed in mixing rooms Revisions to Chapter 9 to differentiate liquid spray operations from powder spray operations and add hybrid systems (water and inert gas) to the list of available fire protection systems

PDF Catalog

PDF Pages PDF Title
2 Important Notices and Disclaimers
3 Additional Important Notices and Disclaimers
10 Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Application.
1.4 Retroactivity.
11 1.5 Equivalency.
1.6 Units and Formulas.
1.7 Enforcement. (Reserved)
Chapter 2 Referenced Publications
2.1 General.
2.2 NFPA Publications.
2.3 Other Publications.
12 2.4 References for Extracts in Mandatory Sections.
Chapter 3 Definitions
3.1 General.
3.2 NFPA Official Definitions.
3.3 General Definitions.
14 Chapter 4 General Requirements
4.1 Location of Spray Application Operations.
4.2 Separation.
4.3 Basements.
4.4 Fueled Vehicles.
4.5 Noncombustible Material.
4.6 Limited-Combustible Material.
15 4.7 Classification Scheme.
4.8 Determination of Flash Point (FP).
Chapter 5 Construction and Design of Spray Areas, Spray Rooms, and Spray Booths
5.1 Spray Areas.
16 5.2 Spray Rooms.
5.3 Spray Booths.
5.4 Conveyor Openings.
5.5 Separation from Other Operations.
5.6 Illumination and Observation Panels.
5.7 Ventilation.
17 Chapter 6 Electrical and Other Sources of Ignition
6.1 Scope.
6.2 General.
6.3 Electrical Area Classification.
18 6.4 Electrical Devices in Spray Areas.
19 6.5 Electrical Devices in Areas Adjacent to or Connected to Spray Areas.
20 6.6 Illumination.
21 6.7 Static Electricity.
6.8 Flexible Power Cords.
6.9 Portable Electric Luminaires.
6.10 Movement of Powered Vehicles.
22 Chapter 7 Ventilation
7.1 General.
7.2 Performance Requirements.
7.3 Make-Up Air.
7.4 Routing of Exhaust Ducts.
7.5 Recirculation of Exhaust.
7.6 Heating of Recirculated Air.
7.7 Manifolding of Exhaust Ducts.
23 7.8 Materials of Construction.
7.9 Support of Exhaust Ducts.
7.10 Exhaust Duct Access Openings.
7.11 Exhaust Fans and Drives.
7.12 Drying Areas.
Chapter 8 Storage, Handling, and Distribution of Ignitible (Flammable and Combustible) Liquids
8.1 General.
8.2 Storage in Process Areas.
8.3 Handling and Use.
24 8.4 Distribution Systems — Piping.
8.5 Distribution Systems — General.
25 Chapter 9 Protection
9.1 General.
9.2 Ventilation Systems.
9.3 Coating Material Delivery Systems.
9.4 Conveyors.
9.5 Protection Systems.
26 9.6 Specific Process Protection.
27 9.7 Protection for Electrostatic Precipitator Scrubber.
9.8 Protection for High-Capacity Dry Paint Arrestor.
28 Chapter 10 Operations and Maintenance
10.1 General.
10.2 Inspection, Testing, and Maintenance.
10.3 Combustible DepositsResidues.
10.4 High-Pressure Hose Lines.
10.5 Maintenance Procedures.
10.6 Waste Containers.
10.7 Clothing.
10.8 Cleaning Operations.
29 10.9 Solvent Distillation Units (Solvent Recyclers).
10.10 Spontaneous Ignition Hazards.
10.11 Chlorinated Solvents.
10.12 Smoking.
10.13 Hot Work.
Chapter 11 Automated Electrostatic Spray Equipment
11.1 Scope.
11.2 General.
11.3 Automated Electrostatic Systems.
30 11.4 Incendive Equipment.
11.5 Listing and Approval of Equipment.
Chapter 12 Handheld Electrostatic Spray Equipment
12.1 Scope.
12.2 General.
12.3 Handheld Apparatus.
12.4 Electrical Components.
12.5 Grounding.
31 Chapter 13 Drying, Curing, and Fusion Processes
13.1 General.
13.2 Spray Booths and Spray Rooms Used for Ambient Air Drying.
13.3 Spray Booths and Spray Rooms Used for Drying at Elevated Temperatures.
13.4 Liquefied-Petroleum-Gas, Compressed-Natural-Gas, or Hydrogen-Fueled Vehicles.
13.5 Radiant Drying Apparatus.
32 13.6 Flash-Off Areas.
13.7 Spray Booths or Spray Rooms Adjacent to or Connected to Rooms or Equipment Used for Drying, Curing, or Fusing.
13.8 Ventilation.
13.9 Warning Signs.
Chapter 14 Miscellaneous Spray Operations
14.1 Vehicle Undercoating and Body Lining.
14.2 Preparation Workstations.
14.3 Limited Finishing Workstations.
33 14.4 Inflatable Finishing Workstations.
36 Chapter 15 Powder Coating
15.1 Scope.
15.2 General.
15.3 Applicability.
15.4 Location.
15.5 EnclosuresConstruction and Design of Spray Booths and Spray Rooms.
15.6 Electrical and Other Sources of Ignition.
15.7 Ventilation, and Dust Collection, and Explosion Protection.
37 15.8 Storage and Handling.
15.9 Protection.
39 15.10 Operation and Maintenance.
15.11 Automated Electrostatic Powder Spraying Equipment.
15.12 Handheld Electrostatic Powder Spraying Equipment.
15.13 Drying, Curing, and Fusing Equipment.
15.14 Electrostatic Fluid Beds.
15.15 Hot Flocking.
15.16 Fluid Bed Coating.
40 Chapter 16 Organic Peroxides and Plural Component Coatings
16.1 Scope.
16.2 General.
16.3 Prevention of Contamination.
16.4 Storage of Organic Peroxides.
16.5 Handling of Organic Peroxides.
16.6 Mixing of Organic Peroxides with Promoters.
16.7 Smoking.
16.8 Trained Personnel.
16.9 Material Safety Data Sheets.
Chapter 17 Styrene Cross-Linked Composites Manufacturing (Glass Fiber–Reinforced Plastics)
17.1 Scope.
17.2 Resin Application Equipment.
17.3 Fire Protection.
17.4 Resin Storage.
17.5 Electrical and Other Hazards.
17.6 Ventilation.
41 17.7 Use and Handling.
Chapter 18 Spray Application Operations in Membrane Enclosures
18.1 Scope.
18.2 Limitations.
18.3 Membrane Material.
18.4 Protection.
42 18.5 Personnel Inside the Enclosure.
18.6 Electrical and Other Sources of Ignition.
43 18.7 Ventilation.
18.8 Recordkeeping.
18.9 Storage and Handling of Ignitible (Flammable and Combustible) Liquids.
44 18.10 Facilities Compliance Permitting.
Chapter 19 Training
19.1 General.
Annex A Explanatory Material
62 Annex B Determining Lower Flammable Limits
Annex C Determining Ventilation Airflow for Powder Application Systems
63 Annex D Fire Record
64 Annex E Informational References

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