Chemical Safety

Science Safety Symbols

• Symbols you may find when doing labs that alert you to work carefully.

Safety Symbol Whiteboard Review

Biohazard!

A. BreakageB. Plant SafetyC. BiohazardD. Poison

Safety Goggles!

A. General Safety AwarenessB. Safety GogglesC. BreakageD. Animal Safety

Electric Shock!

A. PoisonB. Corrosive ChemicalsC. Sharp ObjectsD. Electric Shock

Animal Safety!

A. Plant SafetyB. FumesC. Animal SafetyD. Disposal

Breakage!

A. BreakageB. Plastic GlovesC. Physical SafetyD. Disposal

Plastic Gloves!

A. Corrosive ChemicalsB. Heat Resistant GlovesC. DisposalD. Plastic Gloves

Fire Extinguisher Classification Symbols

• Class A – used to extinguish flames on ordinary combustibles (wood, cloth, paper)

• Class B – used to extinguish flames on liquids (liquids, grease, gases)

• Class C – electrical equipment (things you plug in to the wall)

• Class D – fires involving metals (magnesium, titanium)

NFPA Chemical Hazard Labels• The National Fire Protection Association has developed a

color coded, numerical system for indicating hazards of chemicals.

• Diamond symbol is divided into 4 types of hazards:– Health Hazards (blue)– Flammability Hazards (red)– Reactivity Hazards (yellow)– Special Hazards (white)

• Levels of hazard (0-4)– 0 is not hazardous, 4 is extremely

hazardous

MSDS

• Material Safety Data Sheets – provide more detailed information regarding chemical safety– Chemical Composition (what’s it made of?)– Hazards– First Aid & Exposure– Storage