4.12.10.1. (1) Existing laboratories in basements may store, handle or use flammable liquids and combustible liquids if (a)  the quantity of flammable liquids and combustible liquids that are stored, handled or used does not exceed 300 L, of which not more than 250 L are
flammable liquids, (b)  continuous mechanical ventilation to the outdoors is provided to ensure that flammable vapour concentrations do not exceed 25% of the lower explosive limit, (c)  an audible alarm is provided that will be sounded in an attended area upon shutdown of the mechanical ventilation system, (d)  the building
has a fire safety plan in accordance with Section 2.8, (e)  Class IA liquids are not stored in containers greater than 4 L in capacity, (f)  all sources of ignition within 0.9 m from the floor are eliminated or the room is equipped with a flammable vapour detection system that will alarm in an attended location upon detection of vapour concentrations exceeding 10% of the lower explosive limit, and (g)  the laboratory is designed to prevent critical structural and mechanical damage from an internal explosion in accordance with NFPA 68, “Standard on Explosion Protection by Deflagration Venting”, unless (i)  all dispensing of flammable liquids is carried out in a power-ventilated enclosure in accordance with Articles 4.12.8.3. to 4.12.8.5., and (ii)  Class IA liquids are stored in cabinets in accordance with Article 4.2.10.5. O. Reg. 213/07, Division B, Part 4; O. Reg. 150/13, ss. 13-15; O. Reg. 194/14, s. 7; O. Reg. 256/14, ss. 78-195; O. Reg. 33/19, ss. 14-17. PART 5   HAZARDOUS MATERIALS, PROCESSES AND OPERATIONS TABLE OF CONTENTS SECTION 5.1   GENERAL 

  Subsection 5.1.1.   Application 

  Subsection 5.1.2.   Means of Egress 

  Subsection 5.1.3.   Electrical Installations 

  Subsection 5.1.4.   Ventilation 

        

  SECTION 5.2   EXPLOSIVES, FIREWORKS AND PYROTECHNICS 

  Subsection 5.2.1.   General 

        

  SECTION 5.3   RESERVED 

        

  SECTION 5.4   CELLULOSE NITRATE PLASTICS 

  Subsection 5.4.1.   Displays 

  Subsection 5.4.2.   Manufacture 

  Subsection 5.4.3.   Storage of Finished Products 

  Subsection 5.4.4.   Cellulose Nitrate Motion Picture Film 

  Subsection 5.4.5.   Fire Protection 

        

  SECTION 5.5   RESERVED 

        

  SECTION 5.6   COMPRESSED GAS CYLINDERS 

  Subsection 5.6.1.   General 

  Subsection 5.6.2.   Storage 

        

  SECTION 5.7   RESERVED 

        

  SECTION 5.8   RESERVED 

        

  SECTION 5.9   RESERVED 

        

  SECTION 5.10   COMBUSTIBLE DUST PRODUCING PROCESSES 

  Subsection 5.10.1.   Dust Collection 

  Subsection 5.10.2.   Woodworking Operations 

        

  SECTION 5.11   HOT SURFACE APPLICATIONS 

  Subsection 5.11.1.   Application 

  Subsection 5.11.2.   General 

        

  SECTION 5.12   SPRAY APPLICATIONS USING FLAMMABLE AND COMBUSTIBLE MATERIALS 

  Subsection 5.12.1.   Application and Separation 

  Subsection 5.12.2.   Construction 

  Subsection 5.12.3.   Ventilation 

  Subsection 5.12.4.   Exhaust Ducts 

  Subsection 5.12.5.   Electrical Equipment 

  Subsection 5.12.6.   Flammable Liquids and Combustible Liquids 

  Subsection 5.12.7.   Control of Fire Hazards 

  Subsection 5.12.8.   Fire Protection Equipment 

  Subsection 5.12.9.   Drying Operations 

  Subsection 5.12.10.   Electrostatic Spraying 

  Subsection 5.12.11.   Dry Powder-Coating Using Spray Guns 

        

  SECTION 5.13   DIP TANKS 

  Subsection 5.13.1.   Location 

  Subsection 5.13.2.   Construction 

  Subsection 5.13.3.   Overflow and Drain Pipes 

  Subsection 5.13.4.   Salvage Tanks 

  Subsection 5.13.5.   Control of Fire Hazards 

  Subsection 5.13.6.   Fire Protection 

        

  SECTION 5.14   SPECIAL PROCESSES INVOLVING FLAMMABLE AND COMBUSTIBLE MATERIALS 

  Subsection 5.14.1.   Quench Tanks 

  Subsection 5.14.2.   Flow-Coating Operations 

  Subsection 5.14.3.   Roll Coating Processes 

  Subsection 5.14.4.   Electrostatic Detearing Processes 

  Subsection 5.14.5.   Automobile Undercoating 

  Subsection 5.14.6.   Dry Powder-Coating Using Fluidized Beds 

  Subsection 5.14.7.   Organic Peroxides and Dual Component Coatings 

  Subsection 5.14.8.   Floor Finishing 

  Subsection 5.14.9.   Bowling Alleys 

  Subsection 5.14.10.   Drycleaning and Dyeing Plants 

  Subsection 5.14.11.   Hazardous Extraction Operations 

        

  SECTION 5.15   RADIOACTIVE NUCLEAR SUBSTANCES 

  Subsection 5.15.1.   Application 

  Subsection 5.15.2.   Storage 

  Subsection 5.15.3.   Emergency Procedures 

        

  SECTION 5.16   FUMIGATION AND THERMAL INSECTICIDAL FOGGING 

  Subsection 5.16.1.   Application 

  Subsection 5.16.2.   Safety Precautions 

        

  SECTION 5.17   HOT WORKS 

  Subsection 5.17.1.   Application 

  Subsection 5.17.2.   Use and Maintenance of Equipment 

  Subsection 5.17.3.   Prevention of Fires 

        

  SECTION 5.18   INDUSTRIAL OVENS FOR BAKING AND DRYING PROCESSES 

  Subsection 5.18.1.   Application 

  Subsection 5.18.2.   Location 

  Subsection 5.18.3.   Construction 

  Subsection 5.18.4.   Ventilation 

  Subsection 5.18.5.   Maintenance 

  Subsection 5.18.6.   Fire Protection SECTION 5.1 GENERAL Subsection 5.1.1. Application Application