Lab Safety Flashcards
The lab or classroom is to be used for
Serious work
Study your lab assignment
Before you come to the lab
If you are in doubt about a procedure
Ask your teacher for help
Follow all
Oral and written directions and note all cautions given for specific experiments
Lab areas should not be
Cluttered with unnecessary books, articles, clothing or lab-ware
Unauthorized experiments must
Never be performed
Unless directed to do so
Never mix or heat chemicals
Students should not
Attempt any experiments at home without proper instruction and supervision.
(Pg 34/2) no student is to
Remove any equipment and/or especially chemicals from a laboratory
(Pg 34/2) wear the
Safety equipment provided for you
(Pg 34/2) safety goggles or
Non-breakable prescription eye goggles must be worn
Safety glasses are absolutely required when
Working with caustics, heating liquids or solids, hammering solid materials, dissecting or for any similar procedure, which might have a tendency to cause damage to the eyes
Should anything in the eye
Notify the teacher immediately
Know the location of the
Fire extinguisher, fire blanket, eyewash, and nearest emergency shower and health office
Back away from
Bench fires and call the teacher
If clothing should catch on fire
Smother it with fire blanket or extinguisher (directed away from face) or quench it under safety shower
Inspect all glassware for
Cracks or breakage before beginning lab work
Broken glass should be
Swept up immediately with broom and dustpan
A wet was if paper towel can be used to
Pick up splinters
Never throw broken glass in
Waste paper basket
Place broken glass and solid substances in
Designated containers
Keep…. Out of the
Insoluble waste materials out of the sink
Be as careful and clean as possible in the
Use or all laboratory equipment
Students should
Wash up after working in the laboratory
Do not
Eat in the lab
Do not — from
Drink from lab glassware or utensils
Do not put anything
In your mouth in the lab
Learn in general to keep
Hands paper pencils and other objects away from your face and mouth
Know what you are
Doing at all times. Be aware of what neighboring students are doing
Report any
Accident injury or incorrect procedure to your teacher at once
Never be a
Practical joker in the laboratory
Never
Run in the lab
Think before
You act
Handle chemicals
Carefully
Check the
Labels on bottles before removing contents
Do not return
Unused chemicals to reagent bottles unless directed to do so
Liquids are to be
Transferred over a sink
Do not set
Stoppers on the bench
Be sure to
Wipe reagent bottles after use
Follow specific instructions from your teacher for
Piper techniques
Do not pour
Liquids from a wide mouth container to a narrow mouth
Do not
Exchange stoppers of bottles
Never taste any
Chemical substance unless you are directed soecifically by your teacher to do so
Never draw
Poisonous materials into piper with your mouth
Use piper bulb
Whenever possible
When observing the odor of a substance do not
Hold your face directly over the container. Fan a small amount of vapor toward you by sweeping your hand over the top of the container
Only under the direction of your teacher should you handle
Toxic or combustible gasses; use fume hood when handling such materials and be sure room is well ventilated
When a gas is collected by water displacement make certain that
Delivery tubes are not clogged
Upon completing gas collection
Remove delivery tube from collecting tub before removing heat from any generating flask
Never point a test tube being heated or when in which a reaction is occurring
At another person or yourself
Do not hear liquids in
Containers more than 2/3 full. Use next largest container
Handle
Combustible materials carefully
Hearing of flammable materials should
Be done in an electric hot plate or double boiler
Hair of shoulder length is k
Be tied back when flames are being used and loose clothing is to be avoided
Open sandals are
Not to be worn
Place hot items on
Heat resistant material
Burners are to be
Turned off when not in immediate use
Should a bunson burner strike back
Shut off main has valve immediately
Keep burners in the
Center or desk at all times
When lighting burners
Be careful not to let the gas escape too long before lighting
While performing chemical experiments students should
Place their stools under lab tables and stand until they have completed the lab
Know the correct procedure for
Mixing acid solutions
Always add acid
Slowly to water. Never water to acid
Should acid or another corrosive chemical
Spill in hands clothing bench or floor flush immediately with water. Notify teacher immediately
Cut glass should be
Fire polished before use
Observe appropriate procedure when cutting
Cutting glass tube or rod
Allow fire polished glass to
Cool on heat resistant material before using
Before inserting glass tuning in stoppers
Lubricants glass with small amount of water or glycerine. Protect hands with moist paper towel. Observe proper procedure as directed by your teacher. Never use force
When usin electric current
Avoid having both hands on contact with “live” sections of circuit.
Avoid live contact with
Bare metal
Electrical equipment must never be
Handled with wet hands or while user is standing in water
Do not yank
Plugs from outlets by holding water
All electrical circuits must be
Checked by teacher before proceeding with lab work
Never use
Frayed cords
Never handle lab animals without
Specific directions from teacher
Never poke fingers or hands into
Cages fish tanks and or terrariums
Gloves are recommended when handling lab animals to
Prevent bites
Pointed (probes) and:or sharp (scalpel) instruments are to be
Handled with utmost care and only as directed by teacher
Wear gloves when
Dissecting or working with live cultures
Wash all dissecting instruments after
Use and dispose of all solid waste
In case a live culture is spilled
Notify the instructor immediately and disinfect your hands
Always sterilize cultures before
Disposing of them. Your instructor will direct how this is to be done
Dispose of liquid waste and agar only in
The containers provided for this purpose
At the conclusion of the lab periods
Return all equipment to its place and wash desk tops with disinfectant
When lab work is completed
Be sure to turn off water and gas. Clean work area. Use remaining time to work on your lab report
If a cut is slight and bleeding is not profuse
Examine cut for pieces of broken glass
Remove any pieces of glass in cut with
Forceps clean with soap and water and apply an antiseptic bandage
If bleeding is profuse and does not stop within a few minutes
Cover wound with thick sterile pad and apply constant pressure
If poisoned induce vomiting except in
Case of acid or base poisoning) by having a person drink warm salt or soap solution
Make sure you give the suspect poisoning agent bottle to the
School nurse, first aid squad, or doctor to take them to the hospital
For poisoning follow
Antidote on bottle of prescribed and available
In case of electric shock do not
Touch person if they are still in contact with electric circuit. Notify teacher immediately. Call school nurse a doctor and the principal
In case of fainting or collapse give person
Fresh air and recline so that head is lower than body. Notify teacher
In case of shock keep person
Lying down, warm, and elevate feet. Call school nurse a doctor and the principal
Report all accidents or injuries to
Your teacher at once
If heat burn is slight
Apply cold water
If heat burn is serious
Call school nurse or doctor and principal. Apply thick dry sterile dressing. Don’t break any blisters to clean burn
If clothing adheres to burned surface
Don’t attempt to remove it but cut around adhering portion
If acid or base splashes on skin
Wash with plenty of water until help arrives and don’t stop until nurse/doctor takes over
If acid or base splashes in eyes
Wash eye with eyewash until help arrives and don’t stop until nurse/ doctor takes over
