ADOPTS WITH AMENDMENTS:

International Fire Code 2015 (IFC 2015)

Part I — Administrative

Part II — General Safety Provisions

Part III — Building and Equipment Design Features

Part IV — Special Occupancies and Operations

Part V — Hazardous Materials

Part VI — Referenced Standards

Part VII — Appendices

Heads up: There are no amended sections in this chapter.
This chapter shall apply to locations or areas where any of the following activities are conducted:
  1. The application of flammable finishes to articles or materials by means of spray apparatus.
  2. The application of flammable finishes by dipping or immersing articles or materials into the contents of tanks, vats or containers of flammable or combustible liquids for coating, finishing, treatment or similar processes.
  3. The application of flammable finishes by applying combustible powders to articles or materials utilizing powder spray guns, electrostatic powder spray guns, fluidized beds or electrostatic fluidized beds.
  4. Floor surfacing or finishing operations using Class I or II liquids in areas exceeding 350 square feet (32.5 m2).
  5. The application of flammable finishes consisting of dual-component coatings or Class I or II liquids when applied by brush or roller in quantities exceeding 1 gallon (4 L).
This chapter shall not apply to spray finishing utilizing flammable or combustible liquids that do not sustain combustion, including:
  1. Liquids that have no fire point when tested in accordance with ASTM D 92.
  2. Liquids with a flashpoint greater than 95°F (35°C) in a water-miscible solution or dispersion with a water and inert (noncombustible) solids content of more than 80 percent by weight.

2401.3 Permits

AMENDMENT
This section has been amended at the state or city level.
Permits shall be required as set forth in Section 107.2.
Operations covered by this chapter shall be protected as required by Sections 2403.2 through 2403.4.4.
Protection against sources of ignition shall be provided in accordance with Sections 2403.2.1 through 2403.2.8.

2403.2.1 Electrical Wiring and Equipment

AMENDMENT
This section has been amended at the state or city level.
Electrical wiring and equipment shall be maintained in accordance with the applicable building code.

2403.2.1.1 Flammable Vapor Areas

AMENDMENT
This section has been amended at the state or city level.
Electrical wiring and equipment in flammable vapor areas shall be of an explosion proof type approved for use in such hazardous locations and maintained in accordance with the applicable building code.

2403.2.1.2 Areas Subject to Deposits of Residues

AMENDMENT
This section has been amended at the state or city level.
Flammable vapor areas or drying operations that are subject to splashing or dripping of liquids shall be specifically approved for locations containing deposits of readily ignitable residue and explosive vapors.

2403.2.1.3 Areas Adjacent to Spray Booths

AMENDMENT
This section has been amended at the state or city level.
Electrical wiring and equipment located outside of, but within 5 feet (1524 mm) horizontally and 3 feet (914 mm) vertically of, openings in a spray booth or a spray room shall be maintained in accordance with the applicable building code.
Electrical equipment in flammable vapor areas located such that deposits of combustible residues could readily accumulate thereon shall be specifically approved for locations containing deposits of readily ignitable residue and explosive vapors in accordance with NFPA 70.

Exceptions:
  1. Wiring in rigid conduit.
  2. Boxes or fittings not containing taps, splices or terminal connections.
  3. Equipment allowed by Sections 2404 and 2407 and Chapter 30.
Open flames and spark-producing devices shall not be located in flammable vapor areas and shall not be located within 20 feet (6096 mm) of such areas unless separated by a permanent partition.

Exception: Drying and baking apparatus complying with Section 2404.6.1.2.
Heated surfaces having a temperature sufficient to ignite vapors shall not be located in flammable vapor areas. Space-heating appliances, steam pipes or hot surfaces in a flammable vapor area shall be located such that they are not subject to accumulation of deposits of combustible residues.

Exception: Drying apparatus complying with Section 2404.6.1.2.
Equipment or apparatus that is capable of producing sparks or particles of hot metal that would fall into a flammable vapor area shall be totally enclosed.

2403.2.5 Grounding

AMENDMENT
This section has been amended at the state or city level.
The grounding of metal parts of spray booths, exhaust ducts, and piping systems conveying Class I or II liquids shall be maintained in accordance with the applicable building code.
Smoking shall be prohibited in flammable vapor areas and hazardous materials storage rooms associated with flammable finish processes. "No Smoking" signs complying with Section 310 shall be conspicuously posted in such areas.
Welding, cutting and similar spark-producing operations shall not be conducted in or adjacent to flammable vapor areas or dipping or coating operations unless precautions have been taken to provide safety. Conspicuous signs with the following warning shall be posted in the vicinity of flammable vapor areas, dipping operations and paint storage rooms:

NO WELDING
THE USE OF WELDING OR CUTTING
EQUIPMENT IN OR NEAR THIS AREA
IS DANGEROUS BECAUSE OF FIRE
AND EXPLOSION HAZARDS. WELDING
AND CUTTING SHALL BE DONE ONLY
UNDER THE SUPERVISION OF THE
PERSON IN CHARGE.
Powered industrial trucks used in electrically classified areas shall be listed for such use.
The storage, use and handling of flammable and combustible liquids shall be in accordance with this section and Chapter 57.
Containers supplying spray nozzles shall be of a closed type or provided with metal covers that are kept closed. Containers not resting on floors shall be on noncombustible supports or suspended by wire cables. Containers supplying spray nozzles by gravity flow shall not exceed 10 gallons (37.9 L) in capacity.
Containers and piping to which a hose or flexible connection is attached shall be provided with a shutoff valve at the connection. Such valves shall be kept shut when hoses are not in use.
Where flammable or combustible liquids are supplied to spray nozzles by positive displacement pumps, pump discharge lines shall be provided with an approved relief valve discharging to pump suction or a safe detached location.
Where a flammable mixture is transferred from one portable container to another, a bond shall be provided between the two containers. Not less than one container shall be grounded. Piping systems for Class I and II liquids shall be permanently grounded.
Class I liquids used as solvents shall be used in spray gun and equipment cleaning machines that have been listed and approved for such purpose or shall be used in spray booths or spray rooms in accordance with Sections 2403.3.5.1 and 2403.3.5.2.
Cleaning machines for spray guns and equipment shall not be located in areas open to the public and shall be separated from ignition sources in accordance with their listings or by a distance of 3 feet (914 mm), whichever is greater. The quantity of solvent used in a machine shall not exceed the design capacity of the machine.
When solvents are used for cleaning spray nozzles and auxiliary equipment within spray booths and spray rooms, the ventilating equipment shall be operated during cleaning.
Solvents used outside of spray booths, spray rooms or listed and approved spray gun and equipment cleaning machines shall be restricted to Class II and III liquids.
Flammable vapor areas, exhaust fan blades and exhaust ducts shall be kept free from the accumulation of deposits of combustible residues. Where excessive residue accumulates in such areas, spraying operations shall be discontinued until conditions are corrected.
Scrapers, spuds and other tools used for cleaning purposes shall be constructed of nonsparking materials.
Residues removed during cleaning and debris contaminated with residue shall be immediately removed from the premises and properly disposed.
Approved metal waste cans equipped with self-closing lids shall be provided wherever rags or waste are impregnated with finishing material. Such rags and waste shall be deposited therein immediately after being utilized. The contents of waste cans shall be properly disposed of not less than once daily and at the end of each shift.
Solvent distillation equipment used to recycle and clean dirty solvents shall comply with Section 5705.4.

2404.1 General

AMENDMENT
This section has been amended at the state or city level.
The application of flammable or combustible liquids by means of spray apparatus in continuous or intermittent processes shall be in accordance with the requirements of Sections 2403 and 2404.

2404.2 Location of Spray-Finishing Operations

AMENDMENT
This section has been amended at the state or city level.

2404.3 Design and Construction

AMENDMENT
This section has been amended at the state or city level.

2404.3.1 Spray Rooms

AMENDMENT
This section has been amended at the state or city level.
Spray rooms shall be maintained in accordance with the applicable building code.

2404.3.1.1 Floor

AMENDMENT
This section has been amended at the state or city level.
Combustible floor construction in spray rooms shall be maintained in accordance with the applicable building code.

2404.3.2 Spray Booths

AMENDMENT
This section has been amended at the state or city level.
Spray booths shall be maintained in accordance with the applicable building code.

2404.3.2.1 Construction

AMENDMENT
This section has been amended at the state or city level.

2404.3.2.2 Surfaces

AMENDMENT
This section has been amended at the state or city level.
The interior surfaces of spray booths shall be maintained in accordance with the applicable building code.

2404.3.2.3 Floor

AMENDMENT
This section has been amended at the state or city level.
Combustible floor construction in spray booths shall be maintained in accordance with the applicable building code.

2404.3.2.4 Means of Egress

AMENDMENT
This section has been amended at the state or city level.
Means of egress shall be maintained in accordance with the applicable building code.

2404.3.2.5 Clear Space

AMENDMENT
This section has been amended at the state or city level.
A clear space of not less than 3 feet (914 mm) shall be maintained on all sides of the spray booth. This clear space shall be kept free of any storage or combustible construction.

2404.3.2.6 Size

AMENDMENT
This section has been amended at the state or city level.

2404.3.3 Spraying Spaces

AMENDMENT
This section has been amended at the state or city level.
Spraying spaces shall be maintained in accordance with the applicable building Code.

2404.3.3.1 Floor

AMENDMENT
This section has been amended at the state or city level.
Combustible floor construction in spraying spaces shall be maintained in accordance with the applicable building code.

2404.4 Fire Protection

AMENDMENT
This section has been amended at the state or city level.
Automatic fire-extinguishing systems provided for spray booths shall be maintained in accordance with the applicable building code.
Portable fire extinguishers complying with Section 906 shall be provided for spraying areas in accordance with the requirements for an extra (high) hazard occupancy.
Housekeeping, maintenance, storage and use of hazardous materials shall be in accordance with Sections 2403.3, 2403.4, 2404.5.1 and 2404.5.2.
Spray booths, spray rooms and spraying spaces shall not be alternately utilized for different types of coating materials where the combination of materials is conducive to spontaneous ignition, unless all deposits of one material are removed from the booth, room or space and exhaust ducts prior to spraying with a different material.
Automatic sprinklers installed in flammable vapor areas shall be protected from the accumulation of residue from spraying operations in an approved manner. Bags used as a protective covering shall be 0.003-inch-thick (0.076 mm) polyethylene or cellophane or shall be thin paper. Automatic sprinklers contaminated by overspray particles shall be replaced with new automatic sprinklers.
Control of sources of ignition shall be in accordance with Section 2403.2 and Sections 2404.6.1 through 2404.6.2.4.
Spray booths and spray rooms shall not be alternately used for the purpose of drying by arrangements or methods that could cause an increase in the surface temperature of the spray booth or spray room except in accordance with Sections 2404.6.1.1 and 2404.6.1.2. Except as specifically provided in this section, drying or baking units utilizing a heating system having open flames or that are capable of producing sparks shall not be installed in a flammable vapor areas.
The spraying procedure shall use low-volume spray application.
Fixed drying apparatus shall comply with this chapter and the applicable provisions of Chapter 30. When recirculation ventilation is provided in accordance with Section 2404.7.2, the heating system shall not be within the recirculation air path.
The spraying apparatus, drying apparatus and ventilating system for the spray booth or spray room shall be equipped with interlocks arranged to accomplish all of the following:
  1. Prevent operation of the spraying apparatus while drying operations are in progress.
  2. Where the drying apparatus is located in the spray booth or spray room, prevent operation of the drying apparatus until a timed purge of spray vapors from the spray booth or spray room is complete. This purge time shall be based upon completing at least four air changes of spray booth or spray room volume or for a period of not less than 3 minutes, whichever is greater.
  3. Have the ventilating system maintain a safe atmosphere within the spray booth or spray room during the drying process and automatically shut off drying apparatus in the event of a failure of the ventilating system.
  4. Shut off the drying apparatus automatically if the air temperature within the booth exceeds 200°F (93°C).
Where a portable infrared drying apparatus is used, electrical wiring and portable infrared drying equipment shall comply with NFPA 70. Electrical equipment located within 18 inches (457 mm) of floor level shall be approved for Class I, Division 2 hazardous locations. Metallic parts of drying apparatus shall be electrically bonded and grounded. During spraying operations, portable drying apparatus and electrical connections and wiring thereto shall not be located within spray booths, spray rooms or other areas where spray residue would be deposited thereon.
Where spraying spaces, spray rooms or spray booths are illuminated through glass panels or other transparent materials, only fixed luminaires shall be utilized as a source of illumination.

2404.6.2.1 Glass Panels

AMENDMENT
This section has been amended at the state or city level.
Panels for luminaires or for observation shall be maintained in accordance with the applicable building code.

2404.6.2.2 Exterior Luminaires

AMENDMENT
This section has been amended at the state or city level.
Luminaires attached to the walls or ceilings of a flammable vapor area, but outside of any classified area and separated from the flammable vapor areas by vapor-tight glass panels, shall be maintained in accordance with the applicable building code.

2404.6.2.3 Integral Luminaires

AMENDMENT
This section has been amended at the state or city level.
Luminaires that are an integral part of the walls or ceiling of a flammable vapor area are allowed to be separated from the flammable vapor area by glass panels that are an integral part of the luminaire. Such luminaires shall be maintained in accordance with the applicable building code.
Portable electric lamps shall not be used in flammable vapor areas during spraying operations. Portable electric lamps used during cleaning or repairing operations shall be of a type approved for hazardous locations.

2404.7 Ventilation

AMENDMENT
This section has been amended at the state or city level.
Mechanical ventilation of flammable vapor areas shall be maintained in accordance with the applicable building code.

2404.7.1 Operation

AMENDMENT
This section has been amended at the state or city level.
Where provided, mechanical ventilation shall be kept in operation at all times while spraying operations are being conducted and for a sufficient time thereafter to allow vapors from drying coated articles and finishing material residue to be exhausted.

2404.7.2 Recirculation

AMENDMENT
This section has been amended at the state or city level.

2404.7.3 Air Velocity

AMENDMENT
This section has been amended at the state or city level.
The required air velocity for ventilation systems shall be maintained in accordance with the applicable building code.

2404.7.3.1 Open-Face or Open-Front Spray Booth

AMENDMENT
This section has been amended at the state or city level.
For spray application operations conducted in an open-face or open-front spray booth, the ventilation system shall be maintained in accordance with the applicable building code.

2404.7.3.2 Enclosed Spray Booth or Spray Room With Openings for Product Conveyance

AMENDMENT
This section has been amended at the state or city level.
For spray application operations conducted in an enclosed spray booth or spray room with openings for product conveyance, the ventilation system shall be maintained in accordance with the applicable building code.
Articles being sprayed shall be positioned in a manner that does not obstruct collection of overspray.

2404.7.5 Independent Ducts

AMENDMENT
This section has been amended at the state or city level.

2404.7.6 Termination Point

AMENDMENT
This section has been amended at the state or city level.
The termination point for exhaust ducts discharging to the atmosphere shall be maintained in accordance with the applicable building code.

2404.7.7 Fan Motors and Belts

AMENDMENT
This section has been amended at the state or city level.
Electric motors driving exhaust fans shall not be placed inside booths or ducts, unless approved. Fan rotating elements shall be nonferrous or nonsparking or the casing shall consist of, or be lined with, such material. Belts shall not enter the duct or booth unless the belt and pulley within the duct are tightly enclosed.

2404.7.8 Filters

AMENDMENT
This section has been amended at the state or city level.
Air intake filters that are part of a wall or ceiling assembly shall be maintained.

2404.7.8.1 Supports

AMENDMENT
This section has been amended at the state or city level.
Supports and holders for filters shall be maintained.
Overspray collection filters shall be readily removable and accessible for cleaning or replacement.

2404.7.8.3 Maintaining Air Velocity

AMENDMENT
This section has been amended at the state or city level.
The required air velocity shall be maintained in accordance with the applicable building code.

2404.7.8.4 Filter Rolls

AMENDMENT
This section has been amended at the state or city level.
Filter rolls for spray booths shall be maintained in accordance with applicable building code.
Discarded filter pads shall be immediately removed to a safe, detached location or placed in a noncombustible container with a tight-fitting lid and disposed of properly.
Spray booths using dry filters shall not be used for spraying materials that are highly susceptible to spontaneous heating and ignition. Filters shall be changed prior to spraying materials that could react with other materials previously collected. An example of a potentially reactive combination includes lacquer when combined with varnishes, stains or primers.

2404.7.8.7 Waterwash Spray Booths

AMENDMENT
This section has been amended at the state or city level.
Waterwash spray booths shall be maintained in accordance with the applicable building code.

2404.8 Interlocks

AMENDMENT
This section has been amended at the state or city level.
Interlocks for spray application finishes shall be maintained in accordance with the applicable building code.

2404.8.1 Automated Spray Application Operations

AMENDMENT
This section has been amended at the state or city level.

2404.8.1.1 Alarm Station

AMENDMENT
This section has been amended at the state or city level.
Where required, a manual fire alarm and emergency system shutdown station shall be maintained in accordance with the applicable building code.

2404.8.1.2 Alarm Station Location

AMENDMENT
This section has been amended at the state or city level.

2404.8.2 Ventilation Interlock Prohibited

AMENDMENT
This section has been amended at the state or city level.
The aggregate surface area to be sprayed shall not exceed 9 square feet (0.84 m2).
Spraying operations shall not be of a continuous nature.

2404.9.3 Ventilation

AMENDMENT
This section has been amended at the state or city level.
Positive mechanical ventilation providing a minimum of six complete air changes per hour shall be maintained in accordance with the applicable building code.

2404.9.4 Electrical Wiring

AMENDMENT
This section has been amended at the state or city level.
Electrical wiring within 10 feet (3048 mm) of the floor and 20 feet (6096 mm) horizontally of the limited spraying space shall be designed for Class I, Division 2 locations in accordance with the applicable building code.
Dip-tank operations shall comply with the requirements of Section 2403 and Sections 2405.2 through 2405.11.

2405.2 Location of Dip-Tank Operations

AMENDMENT
This section has been amended at the state or city level.

2405.3 Construction of Dip Tanks

AMENDMENT
This section has been amended at the state or city level.

2405.3.1 Overflow

AMENDMENT
This section has been amended at the state or city level.
Overflow piping required for dip tanks shall be maintained in accordance with the applicable building code.

2405.3.2 Bottom Drains

AMENDMENT
This section has been amended at the state or city level.
Bottom drains required for dip tanks shall be maintained in accordance with the applicable building code. Manual operation shall be from a safe, accessible location. Where gravity flow is not practicable, automatic pumps shall be provided.
Protection against the accumulation of vapors, self-ignition and excessively high temperatures shall be provided for dipping liquids that are heated directly or heated by the surfaces of the object being dipped.
Dip-tank covers allowed by Section 2405.4.1 shall be capable of manual operation and shall be automatic closing by approved automatic-closing devices designed to operate in the event of a fire.
Covers shall be constructed of noncombustible material or be of a tin-clad type with enclosing metal applied with locked joints.
Chain or wire rope shall be utilized for cover supports or operating mechanisms.
Covers shall be kept closed when tanks are not in use.

2405.4 Fire Protection

AMENDMENT
This section has been amended at the state or city level.
Dip tank operations shall be protected in accordance with the applicable building code.

2405.4.1 Fixed Fire-Extinguishing Equipment

AMENDMENT
This section has been amended at the state or city level.
Fixed fire-extinguishing equipment required for dip tanks shall be maintained in accordance with the applicable building code.

2405.4.1.1 Fire-Extinguishing System

AMENDMENT
This section has been amended at the state or city level.
Fire-extinguishing systems provided for dip tanks maintained in accordance with the applicable building code.
Areas in the vicinity of dip tanks shall be provided with portable fire extinguishers complying with Section 906 and suitable for flammable and combustible liquid fires as specified for extra (high) hazard occupancies.
Housekeeping, maintenance, storage and use of hazardous materials shall be in accordance with Sections 2403.3 and 2403.4.
Control of sources of ignition shall be in accordance with Section 2403.2.

2405.7 Ventilation of Flammable Vapor Areas

AMENDMENT
This section has been amended at the state or city level.
Ventilation provided for flammable vapor areas shall be maintained in accordance with the applicable building code.
Dip tanks utilizing a conveyor system shall be arranged such that in the event of a fire, the conveyor system shall automatically cease motion and the required tank bottom drains shall open.
Hardening and tempering tanks shall comply with Sections 2405.3 through 2405.3.3, 2405.4.2 and 2405.8, but shall be exempt from other provisions of Section 2405.

2405.9.1 Location

AMENDMENT
This section has been amended at the state or city level.

2405.9.2 Hoods

AMENDMENT
This section has been amended at the state or city level.
Hoods provided for tanks shall be maintained in accordance with the applicable building code.

2405.9.3 Alarms

AMENDMENT
This section has been amended at the state or city level.

2405.9.4 Fire Protection

AMENDMENT
This section has been amended at the state or city level.
Fire protection provided hardening and tempering tanks shall be maintained in accordance with the applicable building code.
Air under pressure shall not be used to fill or agitate oil in tanks.
Flow-coating operations shall comply with the requirements for dip tanks. The area of the sump and any areas on which paint flows shall be considered to be the area of a dip tank.

2405.10.1 Paint Supply

AMENDMENT
This section has been amended at the state or city level.

2405.11 Roll-Coating Operations

AMENDMENT
This section has been amended at the state or city level.
Roll-coating operations shall be maintained in accordance with the applicable building code.
Operations using finely ground particles of protective finishing material applied in dry powder form by a fluidized bed, an electrostatic fluidized bed, powder spray guns or electrostatic powder spray guns shall comply with Sections 2406.2 through 2406.7. In addition, Section 2407 shall apply to fixed electrostatic equipment used in powder coating operations.

2406.2 Location

AMENDMENT
This section has been amended at the state or city level.
Powder coating operations shall be conducted in enclosed powder coating rooms, enclosed powder coating facilities that are ventilated, or ventilated spray booths and in accordance with applicable building code.

2406.3 Construction of Powder Coating Rooms and Booths

AMENDMENT
This section has been amended at the state or city level.

2406.4 Fire Protection

AMENDMENT
This section has been amended at the state or city level.
Fire-extinguishing systems provided for areas used for powder coating shall be maintained in accordance with the applicable building code.

2406.4.1 Additional Protection for Fixed Systems

AMENDMENT
This section has been amended at the state or city level.
Portable fire extinguishers complying with Section 906 shall be provided for areas used for powder coating in accordance with the requirements for an extra-hazard occupancy.
Powder coating areas shall be kept free from the accumulation of powder coating dusts, including horizontal surfaces such as ledges, beams, pipes, hoods, booths and floors.
Surfaces shall be cleaned in such a manner so as to avoid scattering dusts to other places or creating dust clouds. Vacuum sweeping equipment shall be of a type approved for use in hazardous locations.
Control of sources of ignition shall be in accordance with Section 2403.2 and Sections 2406.6.1 through 2406.6.4.
Drying, curing and fusion equipment shall comply with Chapter 30.
Iron or spark-producing metals shall be prevented from being introduced into the powders being applied by magnetic separators, filter-type separators or by other approved means.
When parts are heated prior to coating, the temperature of the parts shall not exceed the ignition temperature of the powder to be used.

2406.6.4 Grounding and Bonding

AMENDMENT
This section has been amended at the state or city level.
Grounding and bonding provided for powder coating operations shall be maintained in accordance with the applicable building code.

2406.7 Ventilation

AMENDMENT
This section has been amended at the state or city level.
Exhaust ventilation shall be maintained in accordance with the applicable building code.
Electrostatic apparatus and devices used in connection with paint-spraying and paint-detearing operations shall be of an approved type.

2407.2 Location and Clear Space

AMENDMENT
This section has been amended at the state or city level.
A sign stating the sparking distance shall be conspicuously posted near the assembly. The location and clear space required for electrostatic apparatus and devices shall be maintained in accordance with the applicable building code and manufacturer's instructions.

2407.3 Construction of Equipment

AMENDMENT
This section has been amended at the state or city level.

2407.3.1 Barriers

AMENDMENT
This section has been amended at the state or city level.
Booths, fencing, railings or guards shall be in accordance with the applicable building code.

2407.4 Fire Protection

AMENDMENT
This section has been amended at the state or city level.
Fire-extinguishing systems provided for areas used for electrostatic spray finishing with fixed equipment shall be maintained in accordance with the applicable building code.

2407.4.1 Protection for Automated Liquid Electrostatic Spray Application Equipment

AMENDMENT
This section has been amended at the state or city level.
Flame detection apparatus required for automated liquid electrostatic spray application equipment shall be maintained in accordance with the applicable building code.
Housekeeping, maintenance, storage and use of hazardous materials shall be in accordance with Sections 2403.3, 2403.4 and Sections 2407.5.1 and 2407.5.2.
Insulators shall be kept clean and dry. Drip plates and screens subject to paint deposits shall be removable and taken to a safe place for cleaning. Grounds and bonding means for the paint-spraying apparatus and all associated equipment shall be periodically cleaned and maintained free of overspray.
Signs shall be posted to provide the following information:
  1. Designate the process zone as dangerous with respect to fire and accident.
  2. Identify the grounding requirements for all electrically conductive objects in the flammable vapor area, including persons.
  3. Restrict access to qualified personnel only.
Transformers, power packs, control apparatus and all other electrical portions of the equipment, except high-voltage grids and electrostatic atomizing heads and connections, shall be located outside of the flammable vapor areas or shall comply with Section 2403.2.

2407.7 Ventilation

AMENDMENT
This section has been amended at the state or city level.
Ventilation provided for flammable vapor areas shall be maintained in accordance with the applicable building code.

2407.8 Emergency Shutdown

AMENDMENT
This section has been amended at the state or city level.
Emergency shutdown controls shall be maintained in accordance with the applicable building code.

2407.9 Ventilation Interlock

AMENDMENT
This section has been amended at the state or city level.
Ventilation interlock required for electrostatic equipment shall be maintained in accordance with the applicable building code.
Spraying operations involving the use of organic peroxides and other dual-component coatings shall be in accordance with the requirements of Section 2403 and Sections 2408.2 through 2408.5.

2408.2 Use of Organic Peroxide Coatings

AMENDMENT
This section has been amended at the state or city level.
Spray guns and related handling equipment used with organic peroxides shall be of a type manufactured for such use.
Separate pressure vessels and inserts specifically for the application shall be used for the resin and for the organic peroxide, and shall not be interchanged. Organic peroxide pressure tank inserts shall be constructed of stainless steel or polyethylene.
Housekeeping, maintenance, storage and use of hazardous materials shall be in accordance with Sections 2403.3 and 2403.4 and Sections 2408.4.1 through 2408.4.7.
Organic peroxide initiators shall not be contaminated with foreign substances.
Spilled organic peroxides shall be promptly removed so there are no residues. Spilled material absorbed by using a noncombustible absorbent shall be promptly disposed of in accordance with the manufacturer's recommendation.
Materials shall not be contaminated by dusts and overspray residues resulting from the sanding or spraying of finishing materials containing organic peroxides.
Handling of organic peroxides shall be conducted in a manner that avoids shock and friction that produces decomposition and violent reaction hazards.
Organic peroxides shall not be mixed directly with accelerators or promoters.
Personnel working with organic peroxides and dual-component coatings shall be specifically trained to work with these materials.
The storage of organic peroxides shall comply with Chapter 62.
Only nonsparking tools shall be used in areas where organic peroxides are stored, mixed or applied.
Indoor manufacturing processes involving spray or hand application of reinforced plastics and using more than 5 gallons (19 L) of resin in a 24-hour period shall be in accordance with Sections 2409.2 through 2409.6.1.
Equipment used for spray application of resin shall be installed and used in accordance with Section 2408 and Sections 2409.3 through 2409.6.1.

2409.3 Fire Protection

AMENDMENT
This section has been amended at the state or city level.
Automatic sprinkler systems provided for resin application areas shall be maintained in accordance with the applicable building code.
Housekeeping, maintenance, storage and use of hazardous materials shall be in accordance with Sections 2403.3 and 2403.4 and Sections 2409.4.1 through 2409.4.3.
A noncombustible, open-top container shall be provided for disposal of excess catalyzed resin. Excess catalyzed resin shall be drained into the container while still in the liquid state. Enough water shall be provided in the container to maintain a minimum 2-inch (51 mm) water layer over the contained resin.
In areas where chopper guns are used, exposed wall and floor surfaces shall be covered with paper, polyethylene film or other approved material to allow for removal of overchop. Overchop shall be allowed to cure for not less than 4 hours prior to removal.
Following removal, used wall and floor covering materials required by Section 2409.4.2 shall be placed in a noncombustible container and removed from the facility.
Storage and use of organic peroxides shall be in accordance with Section 2408 and Chapter 62. Storage and use of flammable and combustible liquids shall be in accordance with Chapter 57. Storage and use of unstable (reactive) materials shall be in accordance with Chapter 66.

2409.6 Ventilation

AMENDMENT
This section has been amended at the state or city level.
Mechanical ventilation shall be maintained in accordance with the applicable building code.

2409.6.1 Local Ventilation

AMENDMENT
This section has been amended at the state or city level.
Local ventilation shall be maintained in accordance with the applicable building code.
Floor surfacing and finishing operations exceeding 350 square feet (33 m2) and using Class I or II liquids shall comply with Sections 2410.2 through 2410.5.
Heating, ventilation and air-conditioning systems shall not be operated during resurfacing or refinishing operations or within 4 hours of the application of flammable or combustible liquids.
Floor surfacing and finishing operations shall not be conducted while an establishment is open to the public.
The power shall be shut down to all electrical sources of ignition within the flammable vapor area, unless those devices are classified for use in Class I, Division 1 hazardous locations.
To prevent the accumulation of flammable vapors, mechanical ventilation at a minimum rate of 1 cubic foot per minute per square foot [0.00508 m3 /(s • m2)] of area being finished shall be provided. Such exhaust shall be by approved temporary or portable means. Vapors shall be exhausted to the exterior of the building.
UpCodes Premium
Leverage the most sophisticated code compliance platform.
TRY FREE FOR TWO WEEKS VISIT PRICING