Why%20is%20Lab%20Safety%20Important?

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Why is Lab Safety Important?

• Lab safety is a major aspect of every lab based
  science class.
• Lab safety rules and symbols are needed so that
  students do not injure themselves or their
  classmates.

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Lab Safety Rules

• 1. Always follow the teachers directions and
  only do lab work when a teacher is present.
• 2. Conduct yourself in a responsible manner at
  all times. No Horseplay!
• .

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Lab Safety Rules

• 3. Do not touch any equipment, chemicals, or
  other materials until told to do so.
• 4. Do not eat food, drink beverages, or chew gum
  in the lab. Do not use lab glassware as food or
  beverage containers.

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Lab Safety Rules

• 5. Report ALL accidents to your teacher
  immediately, even if you think it is minor.
• 6. Follow the lab instructions.
• 7. Use the appropriate safety equipment.

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Clothing

• Wear
• Goggles/safety glasses
• Closed-toed shoes
• Tie back long hair

• Do NOT Wear
• Sandals
• Jewelry
• Loose or Baggy clothing

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Lab Safety Equipment

• Safety Shower

• Safety Goggles

Eye Wash
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Eye Protection

• Safety goggles should be worn when using
  chemicals or when pointed objects are being used.
• Safety goggles can be used by more than one
  person if sterilized between uses. Goggle
  sanitizers are used for this purpose.

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Using Dangerous Materials

• Batteries exhibiting corrosion should be
  discarded.
• Never taste or put anything in your mouth in the
  science lab.
• Notify a teacher immediately in the case of a
  liquid spills.
• Notify a teacher cracked , chipped or broken
  glass.

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More Lab Safety Equipment

• Fire
• Extinguisher

• Fire Blanket

Fume Hood
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Safety With Heat Sources

• Never touch a hot surface like a hot plate or
  boiling water in your classroom.
• If something must be heated, follow
  instruction and use propoer safety equipment,
• Name some hot surfaces at your house that should
  be avoided.

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How to Use a Fire Extinguisher

• Remove the pin that keeps the handle in place.
• Point the nozzle at the base of the fire.
• Squeeze the handle.
• Move the fire extinguisher side to side as it
  discharges, to cover as much area as possible.
• It takes only thirty seconds to discharge the
  fire extinguisher so make sure your aim is good.
• Never use a fire extinguisher on a person!

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• Locate the KEY(The round object)
• Twist the key to remove the stiff nylon retaining
  cord.
• Then pull the key out.
• Unless you are very strong you can not pull the
  key out without twisting first.

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• Raise nozzle in order to direct the stream of
  Carbon Dioxide

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Squeeze the handle to begin the operation.
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How to Use a Fire Blanket

• Open the container that holds the fire blanket
  and remove it.
• Open the blanket up and throw it over the fire.
• Never wrap a person in a fire blanket who is
  standing upright. This will cause a chimney
  effect. Remember, stop, drop, roll, and cover.

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Fire Resistant Lab Tables
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Using an Eyewash Station

• If anyone gets chemicals in their eyes,
  immediately guide them to the eye wash station.
  Do not wait on the teacher!!
• Remove the caps covering the two water fountain
  devices.
• Place the bridge of your nose in between the two
  fountains and turn the water on. This will rinse
  anything out of the eyes.
• Keep the eyewash station bacteria free by running
  it for five minutes weekly.

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(MSDS Sheet) Materials Safety Data Sheet
A list provided by the supplier which the
dangers of the chemicals in question.
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Common Lab Safety Symbols

• Electrical
• Animal
• Chemical
• Fire

• Glassware
• Heat
• Eye and Face
• Sharps

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Other Chemical Hazards and Symbols

• Flammable
• Explosive
• Toxic/Poison

• Irritant
• Corrosive
• Environmental

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Chemical Hazard Symbols and Definitions

• Flammable Any substance that will burn if
  exposed to an open flame.
• Explosive A substance that may explode if
  exposed to heat or flame.

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Chemical Hazard Symbols and Definitions

• Toxic/Poison A substance that can lead to death
  if inhaled, ingested, or absorbed by the skin.
• Corrosive A substance that can destroy or burn
  living tissue and can eat away at other
  materials.

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Chemical Hazard Symbols and Definitions

• Irritant - A substance that causes inflammation
  upon contact with skin or mucous membranes.
• Environmental - Substances that are harmful to
  the environment. They must be disposed of
  properly, not washed down the drain.

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Accidents and Injuries

• Report ALL accidents and injuries to your teacher
  immediately!!!
• Be aware of safety hazards associated with each
  chemical you use.
• Eye accident Wash the eye with copious amounts
  of water for at least 15 min.
• Fire / Burns Stop, Drop, and be covered with a
  fire blanket or soaked with water. Do not remove
  clothing stuck to victim. Get medical attention
  immediately.

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Waste Disposal

• First ask your teacher where/how to dispose of
  waste.
• Never pour anything down the drain unless you are
  told to do so.
• A waste bottle will be supplied for asubstance
  that cannot go down the drain

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Reasons for proper waste disposal

• Hazardous chemicals down the drain can lead to
  pollution of ground water, lakes, rivers, etc.
• Plants and animals will die if they are exposed
  to hazardous chemical waste.
• Serious health problems will become present in
  people if hazardous waste finds its way into
  drinking water.

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Laboratory Materials
Respect lab equipment and work to keep the
science lab neat and in order.