Lab Safety and Equipment

Introduction

• Accidents are unforeseen but inevitable in a lab setting.
• Knowledge of lab safety minimizes the likelihood of accidents.
• Safety equipment in the lab can save lives during emergencies.

Identification of Safety Equipment

• First Lab Visit: Identify the location of all safety equipment.

Essential Safety Equipment

Safety Shower

• Purpose: Used for chemical or flame exposure.
• Action:
  • Yell for help.
  • Move immediately to the safety shower.
  • Remove saturated clothing.
  • Drench affected skin thoroughly.
  • For flames, drench entire body and call 911.

Eye Wash Station

• Purpose: Rinse eyes exposed to hazardous chemicals.
• Procedure:
  • Hold eyes open.
  • Drench eyes thoroughly for at least 10 minutes.

Fire Extinguisher

• Types of Fires:
  • Class A: Ordinary combustibles (wood, cloth, paper).
  • Class B: Organic solvents, flammable liquids.
  • Class C: Electrical equipment.
  • Class D: Combustible metals (less common in labs).
• Extinguishing Methods:
  • Class A: Water or general-purpose extinguishers.
  • Class B & C: Chemical foam extinguishers (do not use water).
  • Most labs have dry chemical extinguishers effective against Class A, B, and C.
• Important: Only trained personnel should use extinguishers. Evacuate and call 911 if the fire is too large.

Fire Blanket

• Use: Extinguish small flames on workbenches, floors, or clothing.
• Procedure:
  • Do not wrap a standing person.
  • Help them to the floor, wrap in the blanket, and roll until the fire is out.

First Aid Kit

• Contains bandages and antiseptics for minor injuries.

Evacuation Routes

• Should be posted near exits.
• Know multiple routes in case one is blocked.

Chemical Fume Hood

• Purpose: Protects from toxic vapors.
• Usage:
  • Turn on exhaust fan.
  • Ensure proper venting.
  • Sash should be open 8 to 16 inches during use.
  • Never store chemicals inside.
  • Clean and remove materials after use.

Maintenance

• Regularly test all safety equipment to ensure readiness.

Upcoming Lessons

• The next lesson will focus on behaviors that enhance lab safety for you and coworkers.