WHMIS, Lab Safety, and Lab Equipment Flashcards

WHMIS

• Workplace Hazardous Material Information System

Learning Goals

• Understand the importance of WHMIS and SDS (Safety Data Sheet).
• Know different WHMIS symbols.
• Understand the importance of lab safety and how to handle proper safety protocols.
• Know lab equipment and their purpose.

Purpose of WHMIS

1. Ensure that hazardous products are properly labeled.
2. Prepare workplace labels as needed.
3. Educate and train workers on the hazards and safe use of products.

WHMIS Symbols

• Flame: For fire hazards.
• Flame over circle: For oxidizing hazards.
• Gas cylinder: For gases under pressure.
• Corrosion: For corrosive damage to metals, skin, and eyes.
• Exploding bomb: For explosion or reactivity hazards.
• Skull and crossbones: Can cause death or toxicity with short exposure to small amounts.
• Health hazard: May cause or suspected of causing serious health issues.
• Exclamation mark: May cause less serious health effects or damage the ozone layer.
• Biohazardous infectious materials: For organisms or toxins that can cause diseases in people or animals.
• Environment: May cause damage to the aquatic environment.

WHMIS 2015 Pictograms

• Flammable: Indicates flammable gases, aerosols, liquids, and solids; pyrophoric liquids, gases, and solids; self-heating substances and mixtures; substances and mixtures that produce flammable gases when in contact with water; organic peroxides; and self-reactive substances and mixtures.
• Oxidizing: Flame over a circle indicates oxidizing gases, liquids, and solids.
• Gases under pressure: Indicates the hazard of gases under pressure such as dissolved gas, liquefied gas, compressed gas, and refrigerated liquefied gas.
• Corrosive: Indicates a substance that can irritate the skin and eyes, and damage metals. It is used for hazardous products that are corrosive to metals, cause skin irritation (corrosion), and cause serious eye irritation or damage.
• Acute Toxicity: Indicates hazardous products that can cause death or acute toxicity after exposure to small amounts of the products and warns users of the potential dangers materials with acute oral, dermal and inhalation toxicity. For instance, the pictogram can be used on containers for cleaning chemicals
• Health Hazard: Indicates a product that causes or is suspected of causing serious health effects (respiratory sensitivity, skin toxicity, germ cell mutagenicity, carcinogenicity, reproductive toxicity, aspiration hazard, specific target organ toxicity after single exposure, and specific target organ toxicity after repeated exposure.)
• Irritant: Indicates hazardous products that cause less serious health effects, acute toxicity (oral, dermal or inhalation), skin corrosion (irritation), eye irritation, skin sensitivity, respiratory damage, and specific target organ toxicity on single exposure.
• Biohazardous Infectious Materials: Indicates the presence of organisms or toxins that can cause diseases in humans and animals.
• Exploding Bomb: Indicates explosion or reactivity hazards, self-reactive substances and mixtures, and organic peroxides.
• Environmental Hazards (Not integrated into WHMIS): Indicates environmental hazards.

SDS (Safety Data Sheet)

• Stands for Safety Data Sheet.
• Summary documents that provide information about the hazards of a product and advice about safety precautions.
• SDSs are usually written by the manufacturer or supplier of the product.

LAB SAFETY

• You are responsible for your own safety and for the safety of those around you!
• Failure to act in a safe and responsible manner can result in lab privileges being taken away.

General Lab Precautions

• No horseplay.
• No students should be in the lab room/preparation room unsupervised.
• Always be prepared for your lab! Read the procedure for any safety precautions before starting.
• Do not eat, drink, or chew gum in a lab.
• Never taste or inhale chemicals. If asked to smell, use the waft technique.
• Never sit or stand while doing labs.
• Keep work area clean and free when performing experiments.

Safety Equipment

• Safety goggles must be worn at all times during a lab.
• Know the location of the fire extinguisher, eye wash station, first aid kit, and fire exits.
• If working with more serious chemicals, wear a lab coat and gloves.
• Wear closed toed shoes, no sandals.
• Dress appropriately, don't wear baggy clothes or dangling jewelry.
• Long hair must be tied up.

Electrical Safety

• Do not place a cord where someone can trip.
• Never use electricity around water.
• Unplug a cord by pulling the plug, not the cord itself.
• Unplug all equipment once you're done and wrap the cord appropriately.

Handling Chemicals

• All chemicals are deemed dangerous.
• Do not taste or smell chemicals.
• Do not allow chemicals to come into contact with skin or eyes.
• Measuring or performing labs with chemicals should be at eye level, never above.
• Always check the label before using it to make sure it is the correct chemical you need. Take only as much as you need.
• Never return unused chemicals back into their container.
• Always place chemicals in a waste container or ask your teacher where to put it.

Handling Glassware

• Broken glass must be reported to the teacher, who will give you the instructions for cleanup and disposal protocol.
• Put broken glass in a designated glass disposal container.

Accident and Injuries

• Report all accidents and injuries to the teacher right away, no matter how minor!
• If a chemical is spilled on your skin, run water for as long as the teacher tells you to.
• If chemicals get into your eyes, rinse your eyes at the eye wash station for at least 30 minutes. Hold eyelids open.
• If a chemical is spilled on a surface or the floor, follow teacher's instructions.
• If there is a fire, inform the teacher, use the fire extinguisher.
• If you are on fire, stop, drop, and roll!

When You Finish a Lab

• Put chemicals in the correct waste container, or elsewhere if directed by your teacher.
• Clean all glassware used and put all lab equipment away.
• Wipe lab stations down.
• Return all safety equipment (goggles, lab coats).
• Wash your hands.

If You Are Not Sure About Something

• ALWAYS ASK!!!

Lab Equipment

• Graduated Cylinder
• Beaker
• Erlenmeyer Flask
• Watch Glass
• Volumetric Flasks
• Funnel
• Test tube clamp
• Ring clamp
• Retort Stand
• Crucible and lid
• Test tube
• Test tube rack
• Mortar & pestle
• Spot plate/well plate
• Glass stirring rod
• Thermometer
• Test tube brushes
• Flint striker
• Test tube holder
• Bunsen burner
• Scoopula
• Medicine dropper
• Wire Gauze
• Tweezers
• Evaporation disk
• Beaker tongs
• Crucible tongs