Lab Safety

Lab Safety 1 General Safety Rules 1. Listen to or read instructions carefully before attempting to do anything. 2. Wear safety goggles to protect your eyes from chemicals, heated materials, or things that might be able to shatter.

3. Notify your teacher if any spills or accidents occur. 2 General Safety Rules 4. After handling chemicals, always wash your hands with soap and water. 5. During lab work, keep your hands away from your face.

6. Tie back long hair. 3 General Safety Rules 7. Roll up loose sleeves. 8. Know the location of the fire extinguisher, fire blanket, eyewash station, and first aid kit. 9. Keep your work area uncluttered. Take to

the lab station only what is necessary. 4 General Safety Rules 10. It is suggested that you wear glasses rather than contact lenses. 11. Never put anything into your mouth during a lab experiment. 12. Clean up your lab area at the

conclusion of the laboratory period. 13. Never horse around or play practical jokes in the laboratory. 5 Glassware Safety 1. Chipped or cracked glassware should not be used. Show it to the teacher. 2. Broken glassware should not be disposed of in a classroom trash can.

There is a special glass disposal container for it. 3. When pouring liquids into glassware, make sure the container you are pouring into is resting on a table at least a hands breadth from the edge. 6 Glassware Safety 4. If a piece of glassware gets broken, do

not try to clean it up by yourself. Notify the teacher. 5. Do not place hot glassware in water. Rapid cooling may make it shatter. 7 Chemical Safety 1. Wear protective goggles whenever heating or pouring hazardous chemicals.

2. Never mix chemicals together unless you are told to do so (and then only in the manner specified). 3. Never taste any chemicals (you should never taste anything in the lab). 8 Chemical Safety 4. If you need to smell the odor of a

chemical, waft the fumes toward your nose with one hand. Do not put your nose over the container and inhale the fumes. 9 Chemical Safety 5. Follow the instructions of your teacher

when disposing of all chemicals. 6. Wash your hands after handling hazardous chemicals. 7. Never pour chemicals back into the original container or down the drain. We have a special bucket to dispose of the chemicals. 10 Heating Safety

1. Use tongs and/or protective gloves to handle hot objects. 2. Never reach across an open flame or burner. 11 Heating Safety 3. Always point the top ends of test tubes that are being heated away from people.

4. When heating a test tube, move it around slowly over the flame to distribute the heat evenly. 12 Heating Safety 5. Only glassware that is thoroughly dry should be heated. 6. Heat glassware by placing it on a wire

gauze platform on a ring stand. Do not hold it in your hand. 13 First Aid Injury: To Do: Burns

Immediately flush with cold water until burning sensation is lessened. 14 First Aid Injury: To Do:

Cuts, bruises Do not touch an open wound without safety gloves. Pressing directly on minor cuts will stop bleeding in a few minutes. Apply cold compress to bruises to reduce swelling. 15 First Aid

Injury: To Do: The eyes Flush eyes immediately with plenty of water for several minutes. If a foreign object is lodged in the eye, do not allow the eye to be rubbed.

16 WHMIS WHMIS stands for Workplace Hazardous Materials Information System The purpose of WHMIS is to reduce injury, illness or disease caused by exposure to

hazardous materials. 17 New to WHMIS 1. Globally Harmonized System of Classification and Labelling of Chemicals (GHS) has been adopted 2. Products previously called controlled are now called hazardous

3. Material Safety Data Sheets (MSDS) are now called Safety Data Sheets (SDS); with no expiry dates 18 New to WHMIS 4. Pictograms on labels and Safety Data Sheets have changed 5. Signal words such as Danger have been added to Supplier

Labels 6. More information have been added to Supplier Labels and Safety Data Sheets 19 Chemicals in your daily life have characteristics that make them useful, hazardous, or both. Some types of matter

that you use everyday can be hazardous Information labels give you information about how to properly handle matter Chemical Safety Around the House

Hazardous Household Products Symbols (HHPS) Each symbol has two types of warnings: Whether the hazard is the container or contents The type of hazard

HHPS: The Borders Dangerous Container Border looks like a traffic yield sign Container is dangerous HHPS: The Borders

Dangerous Product Border looks like a traffic stop sign Contents of the container are dangerous HHPS: The Hazards

Explosive Container can explode If punctured or heater, pieces can cause serious injuries HHPS: The Hazards Corrosive

Product inside the container will burn the throat or stomach if swallowed Burn skin or eyes or contact HHPS: The Hazards

Flammable Product will catch on fire easily if near sparks, flames, or heat HHPS: The Hazards Poisonous Product will cause

illness or death if you eat or drink it Smelling or licking the product may be enough to cause harm HHPS: Household Hazardous Product Symbols

Figure 2.2 Household hazardous product symbols (HHPS). Name two products with HHPS on their containers. Discussion Questions What is the HHPS system? Why is it used? Which HHPS would be on spray paint?

SDS Sheets 1. Identification 2. Hazard(s) identification 3. Composition/information on ingredients 4. First-aid measures 5. Fire-fighting measures 6. Accidental release measures 30

SDS Sheets 7. Handling and Storage 8. Exposure controls/personal protection 9. Physical and chemical properties 10.Stability and reactivity 11.Toxicological information 12.Ecological information 13.Disposal considerations 31

SDS Sheets 14.Transport information 15.Regulatory information 16.Other information 32 Work on the provided worksheet by your teacher.


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