Safety
Procedures and
Equipment
General Safety
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Know the location and proper use of all safety
equipment
Listen to/Read the directions
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Follow them carefully
Only change the procedure if asked to do so
Be sure you understand the directions, STOP and
ASK if you are unsure.
Begin the activity when asked (not before)
Keep work area neat and clean
Do NOT eat or drink in lab
General Safety cont.
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Tell me if something is going wrong
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Examples: broken glass, spill, fire, injury
Focus on what you are doing
Clean up all materials and equipment after you have
finished
Wash your hands with soap and water after each lab
When everyone is finish everything then you may
remove safety equipment
PERSONAL PROTECTIVE EQUIPMENT
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Wear safety goggles during entire lab
Do NOT wear contact lenses
Roll up long sleeves and tie back long hair
Wear long pants and closed toed shoes
Wear gloves if applicable
Heat, Fire & Electrical Safety
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Only heat when it is part of the procedure
Never reach across a flame
Never leave a flame unattended
If heating a test tube, point the end away from
people
Use tongs or gloves to pick up hot objects
Know where the fire extinguisher and fire blanket are
(know how to use them)
Keep water away from electricity
CLASSES OF FIRES
Class A fires are those fueled by materials that, when they burn, leave
a residue in the form of ash, such as paper, wood, cloth, and certain
plastics.
Class B fires involve flammable liquids and gasses, such as gasoline,
paint thinner, kitchen grease, propane, and acetylene.
Class C fires are those that involve energized electrical wiring or
equipment (motors, computers, panel boxes)
Note: if the electricity to the equipment is cut, a Class C fire becomes one of the other three types of fires.
Class D fires involve exotic metals, such as magnesium, sodium,
titanium.
FIRE EXTINGUISHERS
To remember how to use a fire extinguisher, think of PASS.
P Pull the locking pin.
A Aim the nozzle at the base of the fire.
S Squeeze the trigger all the way closed.
S
Sweep the extinguisher discharge side to side over the area
of the fire.
Do not aim the fire extinguisher at a person! It removes oxygen to stop
the fire, but removing oxygen from a person is bad!
If Disaster Strikes
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If you are burned:
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If you do catch on fire:
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Rinse the area under cold water and let me know.
Stop, drop and roll while someone grabs the fireblanket and
smothers you with it.
If something else or someone else catches on fire:
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DO NOT panic.
If someone is on fire grab the fireblanket get them to do as above.
Let me know.
If something is on fire, let me know.
Shut off gas valves if using them.
Chemicals
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Never taste, smell, touch or mix chemicals unless is part
of procedure
– Use wafting when instructed to smell
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Keep all lids closed tightly on chemicals
Wash your hands after handling chemicals
Dispose of chemicals as instructed, DO NOT pour
chemicals down sinks unless told. Do NOT pour extra
back into stock containers ever.
Wash any area of your body that comes into contact with
a chemical.
If Disaster Strikes
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If something spills:
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If you spill something on yourself:
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Immediately rinse it with water and let me know.
If you spill a lot on yourself:
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Tell me FIRST then we will clean it up together.
Go directly to the emergency shower located in the science
storeroom.
Pull down the handle and rinse yourself off for 10 minutes.
If chemicals get in your eyes rinse with eye wash for
15 minutes
Glass & Sharp Objects
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Handle glassware, knives and other sharp
instruments with care (cut away from self and
others)
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DO NOT work with cracked or chipped glass
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It can explode and shatter
If Disaster Strikes
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If you cut yourself:
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Apply pressure and/or Rinse the wound with
water and let me know.
If you break some glass:
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Let me know, do not attempt to pick up the pieces
We will get the broken glass container and clean
up the mess.
WHMIS
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WHMIS stands for Workplace Hazardous
Materials Information Sheet
Any potentially dangerous substance is
labeled to warn users of possible danger
Class A
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Compressed Gas
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Including compressed gas, dissolved gas, or
liquefied gas
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CO2 cartridges, Oxygen tanks, Liquid Nitrogen tanks
Class B
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Flammable and Combustible Material
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Flammable Gases
Flammable and Combustible Liquids
Flammable Solids
Flammable Aerosols
Class C
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Oxidizing Material
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Any Hazardous Material which causes or
contributes to the combustion of another material.
Class D1
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Poisonous & Infectious Materials
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Material causing immediate and serious toxic
effects
Materials which are potentially fatal or may cause
permanent damage
Class D2
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Poisonous &
Infectious Materials
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Material causing other chronic or long term effects
Material which may cause death or permanent damage as a
result of repeated exposure over an extended period of time
May be an irritant to the skin, eyes, or respiratory system
May cause cancer, birth defects, or sterility.
Class D3
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Poisonous & Infectious Materials
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Biohazardous and Infectious Materials
Materials which may cause disease in humans
and animals, such as viruses, bacteria, and fungi
May also include cultures and diagnostic
specimens such as blood, urine, and body tissue.
Class E
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Corrosive Material
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Material which may corrode aluminum and steel
or human flesh
Class F
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Dangerously
Reactive Material
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Materials which undergo vigorous reactions
Materials which become self-reactive under
conditions of shock, or increased temperature or
pressure
Other Symbols
Caution
Warning
Danger
Explosive
Flammable
Poisonous
Corrosive
HIS Hazard Classifications
SAFETY EQUIPMENT
Know the location and use of all the science lab
safety equipment, including:
Sinks, Safety Shower
Eye Wash
Fire Blankets
Fire Extinguishers, Fire sand
Fire Exits
Gas shut off valve
First Aid Kit
Broken glass bucket