Lesson: Chapter - 11

Rules for Basic Laboratory Safety

• Safety goggles must be worn at all times in the laboratory.
• No eating or drinking in the laboratory.
• Never taste or touch the laboratory chemicals.

• Always wash your hands before leaving the laboratory.
• Wear proper clothing—safety glasses, closed-toed shoes, and an apron; tie long hair back and remove all jewelry.
• Always follow the written directions, and never perform an unauthorized experiment.

• Always add acid to water. This prevents the acid from spattering.
• Point heating test tubes away from others and yourself, and heat them slowly.
• Never return unused chemicals to their original containers. This prevents contamination.
• Always use a pipette bulb or a pipetter to transfer when using a pipette. Never use your mouth.
• Always use a fume hood when working with toxic substances. Never inhale fumes directly.
• Never use an open flame near flammable liquids.
• Dispose of chemicals in the designated disposal site—not in the sink or trash can.

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