Safety Symbols

• HHPS

• WHMIS

Safety in the Lab

• Rules

• MSDS

• Hazard Codes Systems

Lab Equipment

• Chemistry based

• Biology based

Safety SymbolsWe will be discussing two types of Information Systems

Hazardous Household Product Symbols (HHPS)

Workplace Hazardous Materials Information System Symbol (WHMIS)

Hazardous Household Product Symbols

(HHPS) Warning symbols that appear on a number of products that commonly

appear in most households

These symbols were developed to indicate exactly why and to what degree a product is dangerous.

CautionFrame

DangerFrame

Workplace Hazardous Information System Symbols(WHMIS)

Developed to standardize the labelling of dangerous materials used in all workplaces, including schools.

Safety in the Laboratory

Certain safety hazards exist in a lab; you should know about them and take the necessary precautions to reduce the risk of an accident.

Being safe in a lab combines common sense and the skill of foresight to consider the worst case scenario

Safety in the Laboratory cont . . .Preventing Accidents - Most accidents occur because of carelessness

Key Concepts to remember:

Apply appropriate pressure to glass equipment

Handle hot equipment carefully

Measure and mix chemicals correctly

Work in a clean organized lab space

Pay attention to instructions and focus only on the work at your station

Safety in the Laboratory cont . . .Before you start - Most accidents occur because of carelessness

Key Concepts to remember:

Learn the location of the safety equipment available to you (ie. First aid kit, Fire blanket/extinguisher, gas safety shut off, fire alarm, eye wash station, etc.)

Inform your teacher of any health and physical impairments you have.

Read procedures and prepare for the lab carefully before lab day.

Clear the lab bench of all materials except those needed for the investigation.

Wear appropriate clothing and protective gear (ie. Goggles, closed toed shoes, tie hair back, no loose clothing, no jewellery, no eye contacts when possible)

Secure supplies and equipment away from bench ledge.

Safety in the Laboratory cont . . .Working with chemicals- Most accidents occur because of carelessness

Key Concepts to remember:

do not taste, touch or smell materials unless directed to do so

No gum, drinks, or food in the laboratory

Know the MSDS information for the chemicals used in the lab

Label all sample containers prior to going to stock bottle station

Double check labels whenever removing chemicals from stock bottles

If skin or eyes come in contact with chemicals immediately wash with copious amounts of water for 15 minutes and have partner inform the teacher.

Never put your nose close to a chemical; wash your hands before and after labs

Handle chemicals carefully; never hold equipment you are pouring into.

Safety in the Laboratory cont . . .Lab Rules: Most accidents occur because of carelessness

1. Never work alone; the lab is a place for strictly serious work

2. Study procedure before lab day; if in doubt of actions ask the teacher

3. Safety goggles must be worn at all times during pre/post and during lab work

4. Contact lenses should not be worn even with goggles

5. Long hair must be tied back

6. Report any accidents, injuries, incorrect procedures, or damaged equipment immediately to the teacher

7. Handle chemicals carefully; check labels of stock bottles several times before removing the contents

8. Do not return unused chemicals to stock bottles

Safety in the Laboratory cont . . .Lab Rules: Most accidents occur because of carelessness

9. Do not take stock bottles to lab bench; take small amounts to limit excessamounts to limit excess

10. Do not insert pipettes into stock bottles; place chemicals in glasswarein glassware

11. Immediately inform the teacher of any spills or accidents while one partner while one partner secures the area.

12. Keep combustible material away from open flames (ie. Chemicals, paper, etc)Chemicals, paper, etc)

13. When heating material in a test tube be sure never to point the opening at your point the opening at your peers or yourself or place your face above the opening of face above the opening of the tube

14. Use caution and proper equipment when handling hot glassware (hot or cool?)

Safety in the Laboratory cont . . .

Lab Rules: Most accidents occur because of carelessness

16. Know the correct procedure for preparing acid solutions. ALWAYS ad the acid slowly to the water (A to W)

17. Keep the balance and scale area clean. Never weigh chemicals directly on the pan of the balance or scale.

18. Do not heat graduated cylinders, burettes, pipettes, or any plastic-ware with a lab/bunsen burner.

19. After completing an experiment, properly clean and put away your lab equipment. Clean your work area of any paper, drying materials, etc. , wipe up your lab station, and clean out your sink. Make sure the gas and water are turned off. Wash your hands with soap and water before you leave the lab.

Safety in the Laboratory cont . . .Material Safety Data Sheets (MSDS):

In Canada, manufacturers of all hazardous products used in workplaces, including schools, must provide information sheets about their products.

WHMIS sheets identify the chemical and physical hazards associated with each substance.

It includes physical data such as melting point and boiling point, toxicity, health effects, first aid, & spill and leak cleanup procedures.

WHMIS regulations require employers to make these sheets available to employees who use hazardous substances in their work.

Safety in the Laboratory cont . . .Material Safety Data Sheets (MSDS):

Acetic Acid MSDS

Hazard Code System:

Red = Flammability

Blue = Health

Yellow = Reactivity

White = Special

4 Severe 3 Serious 2 Dangerous 1 Minor 0 Slight

Safety in the Laboratory cont . . .

Laboratory Equipment: Chemistry based

Beaker tongs Crucible tongs Test-tube holder Pipette

Glass stirring rod Thermometer Test tube Graduated cylinder

Beaker Erlenmeyer flask Overflow can Funnel

Laboratory Equipment: Chemistry based

Watch glass Test tube rack Spot plate Evaporating dish

Crucible Mortar & Pestle Filter paper Rubber stopper

Cork stopper Triple-beam balance Electronic Scale Hot plate

Laboratory Equipment: Chemistry based

Bunsen burner Metal Ring clamp Test tube clamp Metal Gauze

Ceramic triangle Ring stand . Rubber tubing Buret clamp

Buret clamp 2 Buret Wash bottle Volumetric flask

Laboratory Equipment: Chemistry based

pH paper pH paper 2 Clamp holder Safety Goggles

Safety goggles 2 Forceps scoopula Test tube brush

Flask brush Beaker brush Striker

Laboratory Equipment: Biology based

Microscope Petri dish Glass slide Cover slip

scalpel Dissecting scissors Forceps Pipette

Mal probe T pins Dissection pan