Transcript Lab Safety PPT

Safety and
Rules of
the Lab
Safety Symbols
• Know safety symbols
• They appear in your
laboratory activities
• They will alert you
to possible dangers
• They will remind you
to work carefully
Use Your Head
• Exercise Caution and
Good Judgment
• Follow all instructions
given by the teacher
• Notify the teacher
immediately regarding
any accident or unsafe
areas
Use Your Head
• Read lab instructions ahead of time
• Always follow lab procedures exactly
• Never do an unauthorized experiment
Protect Yourself
Eye Safety
• Wear safety goggles when
working with chemicals, flames,
or heating devices
• or if possibility of flying debris
• If you wear contact
lenses let your teacher
know
• Glasses, sunglasses, etc.
are NOT considered
safety goggles!
Protect Yourself
Eye Safety
• In case of emergency
in which a chemical
goes into one’s eye,
use the eyewash
station
• Flush in water for 15
mins. and notify the
teacher
Protect Yourself
Proper Attire
• Keep all long hair
tied back
• Do not wear loose
clothing that could
catch on fire
• Foot wear that
completely covers the
foot is required
Protect Yourself
Hand Safety
• If a chemical spills on your skin, notify the
teacher and rinse with water for 15 minutes
• Wash hands after every lab
• Handle
glassware,
sharp tools
and heated
containers
carefully
Protect Yourself
Hand Safety
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Sharp Objects
• Always cut away from fingers
and body
• Always carry sharp objects
with points and tips facing
down and away
• Never try to catch falling
sharp instruments
• Grasp sharp instruments
only by the handles
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Sharp Objects
• Notify teacher if you get cut
• Broken glass and sharp objects
do not go in trash cans
• Teacher will clean up
broken glass
Electrical Safety
• Only electrical plugs
are to be placed into
an electrical outlet
• Unplug electrical
equipment after use
• Keep all electrical
cords, wires, and
appliances
away from
water
Physical Safety
• Handle all equipment carefully
• Do not place a cord where
someone can trip over it
• Push all stools in out of the
way
• Keep books picked up out
of walking isles
Heating Safety
• Tie back hair and loose
clothes when working
with open flames
• Never look into a
container as you
are heating it
• Never point the end of
a test tube being heated
at yourself or others
• Never heat in a closed container
Heating Safety
• Never leave a heat source unattended
• Heated metal and glass looks
cool, use tongs or gloves
before handling
• Do not place hot glassware
directly on lab desk or in
cold water
Chemical Safety
• Read all labels twice before removing
a chemical from the container
• Only use the type and
amount of chemical
instructed to use
• Never touch, taste, or
smell a chemical unless instructed
by the teacher.
• To smell a chemical, use
the wafting technique
• Never mix chemicals
unless instructed to do so
Chemical Safety
• Transfer chemicals carefully!
• Keep lids on chemical
containers when not in use
• When diluting an acid, pour the
acid into water
• Consider all chemicals
dangerous
Animal Safety
• Only handle living organisms with
teacher permission
• Always treat living
organisms humanely
• Wash your hands
after handling
animals
Treatment of Specimen
• Respect the life of all
laboratory specimen
• They gave their life for
your education
Plant Safety
• Do not eat any plants in lab
• Wash your hands after
handling plants
• Tell your teacher of any
plant allergies
• Like any
organism, plants
should be
considered
possibly harmful
You Should Never…
• Enter store room
unless given
permission
• Take any chemicals
from lab or store
room
• Touch any equipment,
chemicals, or other
materials until
instructed to do so
You Should Never…
• Eat or drink in the lab
• Use lab glass-ware to
eat or drink out of
You Should Never…
• Engage in….
– practical jokes
– horse play
– rough house
In case of an emergency…
• Know the locations of:
–
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fire extinguisher
fire blanket
body shower
eyewash
station
– first aid kit
• If you spill a harmful
chemical on yourself or in
your eyes, start rinsing
immediately and send your
partner to get teacher’s help
Remember to…
•
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Stay at your work station
Maintain a clean work area
Read and follow all directions
Report any spills, accidents,
or injury to the teacher
immediately
• Clean and put away all equipment
at the end of the
lab period
• Dispose of waste products
according to instruction
Activity
• Safety Scenarios:
Take out a sheet of paper and a writing
utensil. A lab scenario will be displayed on
the board. You have 30 seconds to write
down anything that could have been done
differently according to Lab Safety before
the next scenario will appear. There will be
9 scenarios.
Scenario #1
• The teacher was not in the room yet.
Jake began weighing chemicals,
touching them with his hands. His
nose itched, so he rubbed it.
Scenario #2
• Heather and Jennifer were absent the
day before when the investigation was
discussed. While they shared a
muffin, they gathered their lab
materials and watched their
classmates to see what to do, and then
they began the investigation.
Scenario #3
• Sam was heating a test tube. He didn’t
put on his safety goggles since he was
wearing scratch resistant glasses. He
slanted the tube away from his work
area, but toward students on the
opposite side of the lab bench.
Scenario #4
• Cindy broke a test tube. She carefully
picked up the broken pieces and
placed them gently into the garbage
can.
Scenario #5
• Jim and Jane were going to be late for
their next class so they just left their
lab station with spilled solution on the
counter, and they did not put away
their materials.
Scenario #6
• Gina did not pay attention when the
teacher was explaining were the lab
safety equipment was. She thought to
herself, “Oh, I’ll never need that.”
Scenario #7
• Tim and Tina did not label their
beakers of solution. Tim suggested to
Tina that they start sniffing them and
try to match with someone who had
labeled their beakers of solutions.
Scenario #8
• Henry asked a classmate across the
lab bench if he could borrow a writing
utensil. His classmate threw the
utensil, knocking over a beaker of
chemical. Henry cleaned the spilled
material with paper towel.
Scenario #9
• John made a weak solution of sulfuric acid for
his acid rain project. He did not tighten the lid on
the concentrated sulfuric acid jar because he
knew Sara was going to use it, as well. When
Sara grabbed the jar, the lid came off, and acid
spill all over her hands and arms. While she
cried, “I’m melting, I’m melting,” the majority of
her classmates either laughed or ran out of the
room. John, being a quick and smart thinker,
found a corresponding jar of concentrated base
and threw it on Sara.
Take out a sheet
of paper and write
down the lab
safety violations
that are illustrated
in the picture and
by whom.