Division B
Acceptable Solutions
Part 5 — Hazardous Processes and Operations
Section 5.4. Special Processes Involving Flammable and Combustible Liquids and Materials
5.4.1. Baking and Drying Processes
5.4.1.1. Application
1) 
This Subsection applies to baking and drying processes during which flammable vapours are given off by the products being baked
or dried.
This Subsection applies to baking and drying processes during which flammable vapours are given off by the products being baked
or dried.
5.4.1.2. Design, Operation and Maintenance
1) The design, operation and maintenance requirements relating to baking and drying processes shall conform to NFPA 86, “Ovens and Furnaces.”
The design, operation and maintenance requirements relating to baking and drying processes shall conform to NFPA 86, “Ovens and Furnaces.”5.4.2. Dry Cleaning Plants
5.4.2.1. Dry Cleaning Plants
1) Dry cleaning plants shall conform to NFPA 32, “Drycleaning Plants.”
Dry cleaning plants shall conform to NFPA 32, “Drycleaning Plants.”5.4.3. Fumigation and Thermal Insecticidal Fogging
5.4.3.1. Application
1) This Subsection applies to the fumigation or thermal insecticidal fogging of buildings, including the fumigation of equipment or commodities within structures, tanks or bins or under
tarpaulins.
This Subsection applies to the fumigation or thermal insecticidal fogging of buildings, including the fumigation of equipment or commodities within structures, tanks or bins or under
tarpaulins.
5.4.3.2. Notification
1) The fire department shall be notified before any operation described in Article 5.4.3.1. is conducted.
The fire department shall be notified before any operation described in Article 5.4.3.1. is conducted. 2) The occupants of any premises adjacent to that in which fumigation or thermal insecticidal fogging is to take place shall be given prior
notice.
The occupants of any premises adjacent to that in which fumigation or thermal insecticidal fogging is to take place shall be given prior
notice.
5.4.3.3. Ignition Sources
1) All flames and other sources of ignition shall be eliminated in any part of a building undergoing fumigation or thermal insecticidal fogging.
All flames and other sources of ignition shall be eliminated in any part of a building undergoing fumigation or thermal insecticidal fogging.
5.4.3.4. Electric Power
1) Electric power supply shall be shut off to the premises undergoing fumigation or thermal insecticidal fogging.
Electric power supply shall be shut off to the premises undergoing fumigation or thermal insecticidal fogging.
5.4.3.5. Air Temperature
1) The air temperature in the part of a building undergoing fumigation or thermal insecticidal fogging shall be kept sufficiently low to prevent the actuation of any sprinkler or fire
alarm system.
The air temperature in the part of a building undergoing fumigation or thermal insecticidal fogging shall be kept sufficiently low to prevent the actuation of any sprinkler or fire
alarm system.
5.4.3.6. Access to Premises
1) No unauthorized person shall be permitted to enter a premise undergoing fumigation or thermal insecticidal fogging until the premise
has been ventilated and is safe.
No unauthorized person shall be permitted to enter a premise undergoing fumigation or thermal insecticidal fogging until the premise
has been ventilated and is safe.
2) Warning signs shall be posted in a conspicuous location near every entrance to the premises being fumigated.
Warning signs shall be posted in a conspicuous location near every entrance to the premises being fumigated.
3) One person shall be on duty at each entrance to the premises undergoing fumigation or thermal insecticidal fogging to prevent any
unauthorized person from entering until such premises have been ventilated.
One person shall be on duty at each entrance to the premises undergoing fumigation or thermal insecticidal fogging to prevent any
unauthorized person from entering until such premises have been ventilated.
5.4.4. Floor Finishing
5.4.4.1. Application
1) Floor finishing operations involving the use of flammable liquids or combustible liquids shall conform to Part 4 and this Subsection.
Floor finishing operations involving the use of flammable liquids or combustible liquids shall conform to Part 4 and this Subsection. 5.4.4.2. Public Access
1) Any part of a building where floor finishing operations are done shall not be open to the public.
Any part of a building where floor finishing operations are done shall not be open to the public.
5.4.4.3. Ventilation
1) Ventilation shall be provided in areas where floor finishing operations are done to prevent the accumulation of flammable vapours.
Ventilation shall be provided in areas where floor finishing operations are done to prevent the accumulation of flammable vapours.
2) Ventilation required in Sentence (1) is permitted to be provided by mechanical systems if their use does not constitute a source of ignition.
Ventilation required in Sentence (1) is permitted to be provided by mechanical systems if their use does not constitute a source of ignition.
5.4.4.4. Sources of Ignition
1) All mechanical systems, electric motors and other equipment that might be a source of ignition shall be shut down, and smoking
and the use of open flames shall be prohibited during the application
of Class I liquids and for at least 1 h after such application.
All mechanical systems, electric motors and other equipment that might be a source of ignition shall be shut down, and smoking
and the use of open flames shall be prohibited during the application
of Class I liquids and for at least 1 h after such application.
5.4.4.5. Waste Receptacles
1) A receptacle conforming to Article 2.4.1.3. shall be provided for all waste rags and materials used in operations involving flammable liquids or combustible liquids, and the contents shall be removed daily and disposed of in a manner that will not create a fire hazard.
A receptacle conforming to Article 2.4.1.3. shall be provided for all waste rags and materials used in operations involving flammable liquids or combustible liquids, and the contents shall be removed daily and disposed of in a manner that will not create a fire hazard.
5.4.5. Spray Coating Processes
5.4.5.1. Application
1) This Subsection applies to spray coating processes involving the use of combustible dry powders, flammable liquids or combustible liquids.
This Subsection applies to spray coating processes involving the use of combustible dry powders, flammable liquids or combustible liquids. 5.4.5.2. Design, Operation and Maintenance
1) The design, operation and maintenance requirements relating to spray coating processes shall conform to NFPA 33, “Spray Application Using Flammable or Combustible Materials.”
The design, operation and maintenance requirements relating to spray coating processes shall conform to NFPA 33, “Spray Application Using Flammable or Combustible Materials.”5.4.6. Dipping and Coating Processes
5.4.6.1. Application
1) This Subsection applies to
This Subsection applies toa) processes in which products or materials are immersed in a dip tank containing flammable liquids or combustible liquids, and
b) the unatomized application of flammable liquids or combustible liquids, such as by flow coating or roll coating processes.
5.4.6.2. Design, Operation and Maintenance
1) The design, operation and maintenance requirements relating to dipping and coating processes shall conform to NFPA 34, “Dipping and Coating Processes Using Flammable or Combustible Liquids.”
The design, operation and maintenance requirements relating to dipping and coating processes shall conform to NFPA 34, “Dipping and Coating Processes Using Flammable or Combustible Liquids.”