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Fire Prevention for Construction. Four classes of fires. A, B, C, and D. 1a. Class A. Wood, cloth, paper, rubber and plastics Water or dry chemicals. 1b. Class B. Flammable liquids, gases and greases Foam, carbon dioxide and dry chemical. 1c. Class C. Electrical fires
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Four classes of fires • A, B, C, and D 1a
Class A • Wood, cloth, paper, rubber and plastics • Water or dry chemicals 1b
Class B • Flammable liquids, gases and greases • Foam, carbon dioxide and dry chemical 1c
Class C • Electrical fires • Carbon dioxide and dry chemical 1d
Class D • Combustible metals • Specialized techniques 1e
Fire extinguisher • Inspect periodically • Maintain in working order 1f
Fire extinguisher use • When is the use of a fire extinguisher appropriate? 2a
Fire extinguisher use • Fire alarm • Building evacuated • Small and confined • Nonthreatened escape • Trained and confident 2b
Do not use if: • Fire is large • Escape path • Right type 3a
Personal hazards • Smoke • Noxious fumes • Unconscious 4a
"PASS" method • Pull the pin • Aim at the base • Squeeze the handle • Sweep at the base 5a
Appropriate prevention measures • Work areas • Handle and store chemicals • Fire emergency • Professional help • Know your chemicals 6a
Good housekeeping • Fire prevention • Accumulation of clutter • Stored chemicals 7a
Open yard storage • 20 foot pile rule • 15 foot driveway rule • Weeds and grass • Periodic cleanup • Underground fire • Combustible material • Portable extinguishing equipment • Portable fire extinguishers 7b
Indoor storage • Means of exit • Noncompatible materials • Stable piling • Aisle space • Sprinkler deflectors • Lights and heating units • Fire door clearance 7c
Chemical hazards • Know the hazards • Proper storage • Physical (fire or explosion) hazards • Health (burns or poisons) hazards 8a
Hazardous properties • Flammability • Reactivity • Explosivity 8b
Flammable liquid handling and storage • Ignitable vapors • Heavier than air • Accumulate • Travel • Find open flame 9a
Flame (or ignition sources) • Cigarettes • Hand tool • Cutting torch • Operating motor 9b
Eliminate unsafe • Conditions • Practices 9c
Basic safety principles • Storage • Transfer • Use • Disposal 10a
Storage • Reserve storage in drums • Operational storage in small quantities 11a
Transfer • Gravity flow—horizontally • Pump method—vertically 12a
Use • Jobsite operations • Various storage options • Safety cabinets 13a
Disposal • Caution in handling • Oily waste cans 14a
Spill clean-up • Vapor release • Absorbent materials • Large disposal drum 15a
Compressed - liquefied gases • Flash points • Below room temperature 16a
Cylinder storage and transport • Do not roll or drag • Use a special cart • Secure to walls or bench tops • Be careful about fittings or connections • Inspect the cylinder carefully 16b
Pressure relief devices • Do not: • change • modify • repair • tamper with 16c
Safety equipment • Gas detectors • Gas masks • Self-contained breathing apparatus • Protective clothing 16d
Cylinder storage • Dry, cool, and well ventilated • Protected from the weather 16e
Temporary heating devices • Sufficient fresh air • Mechanical ventilation • Proper combustion • Health and safety • Limit temperature rise 17a
Installation of temporary heating devices • Clearance from combustibles • Rest heaters on suitable material • Heaters located away from tarps, coverings 18a