220 likes | 337 Views
LAB SAFETY. Rule 1. Wear an apron, gloves, goggles and/or ear protection when needed. Rule 2. Always secure loose hair, clothing or jewelry. Rule 3. Always ask a teacher or lab assistant to check your apparatus before using it. Rule 4.
E N D
Rule 1 • Wear an apron, gloves, goggles and/or ear protection when needed.
Rule 2 • Always secure loose hair, clothing or jewelry.
Rule 3 • Always ask a teacher or lab assistant to check your apparatus before using it.
Rule 4 • Tell a teacher or lab assistant if there are any accidents as soon as they happen, or, as soon as you see them!
Rule 5 • Keep your work area clean and tidy. • Put equipment away when you are done with it.
Rule 6 • NEVER smell or taste chemicals.
Rule 7 • Do not leave any machinery running by itself, or, leave a flame burning unattended.
Rule 8 • Speak quietly and only speak about the work happening in the lab. It is very important to stay focused in the lab while working.
Rule 9 • Always clean equipment when you are done. Wash all test tubes, beakers and cylinders before leaving.
Rule 10 • Always clean your work area and wash your hands thoroughly when the lab is over.
Compressed Gas • Compressed gas is a gas that is in a cylinder that is under a lot of pressure. • A compressed gas cylinder can become like a rocket if the cylinder is damaged or, if the gasexpands due to change in temperature. • Common materialsHeliumPropaneOxygen
Flammable and Combustible Material These materials can easily catch fire. It is very important to keep these materials away from open flames. Common materials: Diesel fuel, gasoline, kerosine
Oxidizing Material • Materials that react and decompose with exposure to oxygen. • Can intensify fires and explosions. • Material could combust. • Common types:ozonenitric acidperoxide
Corrosive Material • Material that can attack metals • Material that can burn and destroyhuman tissues. • Common materialsSulfuric acidAmmoniaHydrochloric Acid
Poisonous • This symbol means very toxic and causes immediate and serious problems if ingested,inhaled or if it comes in contact with skin. • Common materials:Carbon monoxide (gas)Hydrogen sulfide
Poisonous • This sign indicates the material is poisonousand toxic that will cause less immediate effects. The effects may not be immediatebut can still be very serious. • Common materials:leadcadmiummercury
Biohazardous • Organisms or toxins that can cause infection in animals or people. • Common Materials:BacteriaParasitesViruses
Dangerously Reactive • Some materials react aggressively with others. • These types of materials often create uncontrolled reactions and the outcome is uncertain.