Chemistry Lab Safety Rules

I. Safety Rules Safety goggles must be worn during experiments at all times. Wear sensible clothing (long pants, enclosed shoes, and no fuzzy clothing). Also tie back long hair.

Safety Rules 2. Know the locations for the fire extinguishers, fire alarms, first aid kit, eye washes and showers. Wash eyes for at least 15 minutes.

Safety Rules When heating liquids in test tubes, never point the tube toward yourself or anyone else. Rotate test tubes over the flame.

Safety Rules 5. Do not perform unauthorized experiments. Only work in the laboratory when supervised by your teacher.

Safety Rules 6. Keep lab stations clean.

Safety Rules Report all accidents to your teacher.

Safety Rules 8. Never return chemicals to bottles of their origin. Check labels on containers twice to make sure you use the right chemical and of the correct amount.

 waffing Safety Rules Always add acids or bases to water. Use fume hoods when noxious fumes may be present in an experiment or use waffing.

Safety Rules 10. In case of an emergency proceed out the nearest exit and stand away from the building.

Safety Rules 11. Never put anything in your mouth while in the lab (including chemicals, solutions, equipment, food, drink, or gum). Put all food and drinks in your bag.

II. Safety Symbols and warnings Toxic (Health Hazard) Oxidizer Gloves Required Corrosive Flammable

III. NFPA Diamond Visual representation of chemical hazards Each diamond is a different hazard Numbers represent severity from 4 - severe hazard to 0 – little to no hazard Letters are used only for special hazards Health Hazard Flammability Hazard Reactivity Hazard Special Hazard

III. NFPA Diamond Ex.: Natural Gas - Odorized Natural Gas – Odorized 4 Southwest Gas Corporation P.O. Box 95890, Las Vegas, NV 89150 Refer to MSDS for more details 4 3

REVIEW Identify what each symbol represents: ___________ ___________