Biology: lab safety review

What does GHS stand for?

Globally Harmonized System

What is GHS?

• an international approach to chemical labels and safety data sheets (SDS).

• to improve safety and health of workers

What are the 2 categories of chemical hazards?

1. Health Hazard

2. Physical Hazrd

Routes of entry for / sign of health hazard?

• Inhalation

• Ingestion

• Injection

• Skin Contact or Absorption

• There are 4 hazard pictograms

What are 2 types of health hazard?

1. Acute Health Problems: symptoms show up right after exposure

2. Chronic Health Problems: problems develop slowly from extended or repeated

   exposure

Signs of physical hazard?

Sudden release of pressure (explosion)

Flammable (catches fire easily)

Reactive (unstable chemicals)

• There are 5 physical hazard pictogram

What are the Requirements of a GHS Label?

1. Product Identifier: should match the product identifier on the Safety Data Sheet

2. Signal World: Uses either “Danger” or “Warning”

3. Hazard Statements: Describes the nature of the product’s hazard

4. Precautionary Statements: Describes recommended measures to minimize or prevent adverse effects resulting from exposure

5. Supplier Identification: Name, address, and telephone number of manufacturer or supplier

6. Pictograms: A symbol intended to have specific information about the hazard of chemical

What is this and what are the causes?

Health Hazard: Corrosion

Causes:

• Skin burns

• Eye damage

What is this and what are the causes?

Health Hazard: Exclamation Mark

Causes:

• Irritates your respiratory system

• Skin Sensitizer

• Acute Toxicity

What is this and what are the causes?

Health Hazard: Health Hazard

Causes:

• Can cause cancer( Carcinogen)

• Damage DNA( Mytagen)

• Can harm reproduction

• Breathing problems( Respiratory Sensitizer)

What is this and what are the causes?

Health Hazard: Skull & Crossbones

Cause:

• Acute Toxicity

What is this and what are the causes?

Physical Hazard: Flame

Causes:

• Catches fire easily (Flammable)

• Gets hot by itself (Self-Heating)

• Catches fire on its own in air(Pyrophorics)

• Emits flammable gas

What is this and what are the causes?

Physical Hazard: Flame Over Circle

Cause:

• Oxidizer: Can cause or help other materials to burn if provided with oxygen

What is this and what are the causes?

Physical Hazard: Gas Cylinder

Cause:

• Gases under pressure

What is this and what are the causes?

Physical Hazard: Exploding Bomb

Causes:

• Explosive

• Self-Reactives

• Can catch fire/react easily (Organic Peroxides)

What is this and what are the causes?

Physical Hazard: Corrosion

Cause:

• Corrosive to Metals

What is this and what are the causes?

Non-mandatory: Environment/ Aquatic Toxicity

What are the 16 Section SDS Format

Identification

Hazard(s) Identification

Composition/Information on Ingredients

First-Aid Measures

Fire-Fighting Measures

Accidental Release Measures

Handling and Storage

Exposure Controls/Personal Protection

Physical and Chemical Properties

Stability and Reactivity

Toxicological Information

Ecological Information

Disposal Considerations

Transport Information

Regulatory Information

Other Information

What does HHPS mean?

Hazardous Household Product Symbols. Ex: Hairspray, cleaners, bleach

What does WHMIS mean?

Workplace Hazardous Materials Information System

What do the symbol shapes mean?

Hexagon: Danger

Dimond: Warning

Upside down triangle: Caution

What is this called?

Beaker Tongs

• Used to hold and move hot beakers safely

What is this called?

Glass Plate/Slide

• Used to hold small samples for viewing under a microscope.

What is this called?

Tweezers

• Used for picking up small items in lab

What is this called?

Test Tube Rack

• Used for holding and organizing test tubes

What is this called?

Crucible and Cover

• used in a lab to heat solid substances to very high temperatures.

• Crucible = holds the substance. Cover = covers it while heating.

What is this called?

Beaker

• is used to hold, mix, and heat liquids in a lab.

What is this called?

Support/Report Stand

• used to hold or support materials/equipment

What is this called?

Medicine Dropper

• Used to measure and transfer small amounts of liquid

What is this called?

Flask Tongs

• Used to hold and move flasks

What is this called?

Erlenmeyer Flask

• Used to hold, mix, and heat liquids.

What is this called?

Rubber Stoppers

• Used to seal containers and prevent spills, gas escape

What is this called?

Ring Clamp

• used to hold and support equipment on a lab stand.

What is this called?

Wire Gauze

• Used to support containers and spread heat evenly when heating.

What is this called?

Watch Glass

• used to hold, evaporate, or cover substances in a lab.

What is this called?

Stirring Rod

• used to mix or stir liquids and solutions

What is this called?

Test Tube

• Used to hold, mix, and heat small amounts of substances

What is this called?

Test Tube Holder

• Used to hold test tubes

What is this called?

Test Tube Brush

• Used to clean test tubes

What is this called?

Gas Bottle/Fleaker

• Used to store and transport gases under pressure.

What is this called?

Clay Triangle

• s used to support a crucible when heating it over a Bunsen burner.

What is this called?

Crucible Tongs

• Used to hold and move hot crucibles or other hot objects

What is this called?

Clamp

• Used to hold or secure objects in place

What is this called?

Funnel

• used to pour liquids or small materials into containers without spilling

What is this called?

Thistle Tube

• Used to add a liquid without opening the container.

What is this called?

Deflagrating Spoon

• used to hold and burn small amounts of substances

What is this called?

Bunsen Burner

• Used to heat up substances

What is this called?

Graduated Cylinder

• used to measure the volume of liquids correctly

What is this called?

Florence Flask

• used to hold, mix, and heat liquids in a laboratory.

What is this called?

Evaporating Dish

• used to evaporate a liquid and leave behind the solid dissolved in it.

What is this called?

Mortar and Pestle

• Used for crushing and grinding solid substances into powder.

What is this called?

Gas Lighter/Flint

• Used to create a spark to light gas

What is this called?

Scoopula

• Used to transfer solid chemicals