Introduction Credits. Introduction This assignment will familiarize you with the lab safety required...
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Transcript of Introduction Credits. Introduction This assignment will familiarize you with the lab safety required...
Introduction
• This assignment will familiarize you with the lab safety required to ensure that you will be safe and have fun while doing the lab. Please take everything you learn with the information seriously.
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Main Menu
Proper Attire and Behavior
Handling Chemicals
Handling Heat and
Fire
Handling Glassware & Electrical
Quiz
Credits
Hazard Signs
Proper Attire
• Always wear closed-toe shoes. – Sandals are not allowed.
• Long hair should be tied back, along with clothes that have baggy sleeves.
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Proper Attire
• Lab coats/aprons and goggles will be provided if necessary for the experiment and should be worn at all times during the experiment.
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Proper Behavior
• Do not push within the lab, or run around the lab.
• Never play with lab equipment or materials.
• Always follow instructions (verbal and written) and wait until you are told to begin before starting the investigation.
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Proper Behavior
• Only carry out experiments assigned.• Never eat or taste anything in the
laboratory. – This includes food, drink, gum, as well as
chemicals found in the lab.
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Proper Behavior
• Keep your work area clean. – Keep books and other nonessential items away
from the work area.
• Keep all equipment well away from the edge of the table.
• Dispose of waste materials in the appropriate containers as directed by the teacher.
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Proper Behavior
• Be familiar with procedures to be used in the event of a lab emergency. – Fire, tornado, etc.
• Turn off all equipment used during the experiment after the experiment has concluded.
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Proper Behavior
• Wash your hands before and after every experiment, even if you did not handle chemicals.
• MOST IMPORTANT: Report all injuries or accidents to your teacher
immediately no matter how small
they seem! MENUBACK
Handling Chemicals
• When labeling the contents of a container, label the empty container first; then add the corresponding material to the labeled container. – This procedure avoids the chance of a spill
occuring and/or cross-contamination.
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Handling Chemicals
• When mixing an acid to water, always add the acid to the water.
• Avoid touching chemicals with your hands. – If chemicals do come in contact with your
skin, notify your teacher and wash the affected area immediately.
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Handling Chemicals
• Keep chemical containers firmly closed when not in use.
• Do not take more chemical than needed from its container, and do not return unused chemicals to the stock bottles.– Dispose of excess chemicals as directed by
the teacher.
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Handling Heat and Fire
• Never heat anything unless instructed to do so.– Some chemicals may
explode or catch fireif heated.
• Never heat a liquid in a closed container.– Could cause the pressure to become too
great within the container and cause an explosion.
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Handling Heat and Fire
• Whenever possible, use a hot plate for heating. – Use a gas burner only when specifically
told to do so.
• When heating materials, be sure the containers are made of heat-proof glass.
• Never point a test tube or container at anyone. – Be especially careful with heated test tubes.
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Handling Heat and Fire
• Use test tube holders or tongs to handle hot items.
• Do not put your hands or face over any substance being heated.
• Never leave anything unattended that is being heated.
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Handling Glassware
• Do not use cracked or badly chipped glassware.– Chemicals could leak or heating
the glass could cause it to shatter.
• If a glass happens to break during the lab, never handle broken glass with your bare hands. – Cleanup broken glass and dispose of it as
directed by your teacher.
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Handling Glassware
• Do not place hot glassware directly on the lab table. Always use an insulating pad of some sort.
• Allow plenty of time for hot glass to cool before touching it. – Remember, hot glass shows no visible signs of its
temperature and can cause painful burns.
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Handling Electrical Equipment
• Never touch cords or electrical equipment with wet hands.
• Grasp the plug when disconnecting an electrical cord from an outlet. Do not pull on the cord.
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Hazard Signs
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Oxidizing Material
Compressed Gas
Combustible
A substance that can catch fire easily.
This type of substance gives
of a large amount of heat when in
contact with other substances.
When the container is ruptured, it can
become a projectile with the potential to
cause significant damage.
Hazard Signs
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CorrosivePoison
A substance that is poisonous if swallowed or
breathed in. It may even go through your
skin!
Radioactive
Radiation can damage cells and
cause cancer.
A substance that may destroy living tissue on contact. It causes a burn.
Question 1What does this symbol represent?
A. Corrosive
B. Radioactive
C. Compressed Gas
D. Combustible
Question 2What should you do in case of breaking
glass?
A. Tell the teacher
B. Try to pick it up with bare hands
C. Kick it under the desk
D. Nothing at all
Question 3What is not required to be worn during lab?
A. Goggles
B. Lab coat/apron
C. Closed-toe shoes
D. White socks
Question 4True or False
You should read and listen to all instructions and follow them all completely
True
False
Question 5What does it mean for combustible
materials?
A. It will poison.
B. It will react with other materials.
C. It will explode if heated.
D. It will explode if ruptured.
Question 6What is proper behavior during a lab?
A. Running around the lab
B. Remaining at table and preforming lab
C. Smelling every chemical
D. Mixing chemicals without instruction
TEKS
• The student, for at least 40% of instructional time, conducts laboratory and field investigations using safe, environmentally appropriate, and ethical practices. The student is expected to:– (A) demonstrate safe practices during laboratory and field
investigations; and– (B) demonstrate an understanding of the use and conservation of
resources and the proper disposal or recycling of materials.
http://ritter.tea.state.tx.us/rules/tac/chapter112/ch112c.html • § 112.34.C.1
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Photo Credits• http://
www.marcomltd.com/marcomUI/images/TitleIcons/lss/LSS_SafeHandlingOfLabGlass.gif
• http://1.bp.blogspot.com/-M7DtqXUrzxo/T7hWgDdnJAI/AAAAAAAAAAg/zRxDLW1n1Ns/s1600/%5D.jpg
• http://www2.worksafebc.com/i/whmis/Symbols&Labels/SymbolA_sm.gif • http://www2.worksafebc.com/i/whmis/Symbols&Labels/SymbolB_sm.gif • http://
www.thecompliancecenter.com/store/media/catalog/product/cache/1/image/325x/9df78eab33525d08d6e5fb8d27136e95/l/b/lb484_hi_2.gif
• http://www.cads.ca/links/sym4.gif • http://www.wallstickz.com/images/uploads/biohazard.jpg • http://www.cads.ca/links/sym7.gif • Clip artBACK
Information Credit
• Jefferson High School Laboratory: http://www.jefftwp.org/highschool/lisasweb3/PDF/lab%20safety%20guidelines.pdf
• Applied Science:http://www.ngfl-cymru.org.uk/vtc/ngfl/science/103_new/asc1/hazardsymbol.htm
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