The Rules of Lab Safety

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The Rules of Lab Safety

• Halton District School Board

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• You are responsible
• for your safety
• and the safety of those around you.

Failure to act in a safe and responsible manner
will result in the removal of all science lab
privileges.
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Horseplay will be dealt with severely!
Professor Glickman, the lab practical joker,
deftly places a single drop of hydrochloric acid
on the back of Professor Bingham's neck.
--Gary Larson, the Far Side
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General Safety Precautions

• No student should be in the lab unsupervised.
• Be prepared for your lab. READ your procedure
  for any safety precautions.
• Do not eat or drink in the lab. Your food may
  pick up harmful chemicals.
• Never taste or directly inhale chemicals.
• Do not sit on the lab benches.
• Please stand while doing labs.
• If designing your own experiment, you MUST first
  have your procedure approved by your teacher .

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Handling Chemicals

• All chemicals in the laboratory are to be
  considered dangerous. Avoid handling chemicals
  with fingers. Do not taste, or smell any
  chemicals. 
• Check the label on all chemical bottles twice
  before removing any of the contents.  Take only
  as much chemical as you need.

• Never return unused chemicals to their original
  container. Dispose of chemicals as instructed by
  your teacher.
• Never remove chemicals or other materials from
  the laboratory area
• Look for WHMIS or HHPS symbols on containers.

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Hazardous Household Product Symbols
CORROSIVE Eats or wears away other materials.
EXPLOSIVE Explodes or gives off deadly vapours.
FLAMMABLE Ignites if exposed to heat or sparks.
POISONOUS May cause sickness or death if
swallowed.
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Workplace Hazardous Materials Information System
WHMIS
Compressedgas
Flammable and combustible material
Materials causingimmediate and serious toxic
effects
Oxidizing material
Materials causingother toxic effects
Biohazardous infectious material
Corrosivematerial
Dangerously reactivematerial
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Handling Glassware

• Do not use dirty or chipped glassware.
• Clean drips off the sides of beakers and flasks
  for the safety of the next student.
• Broken glass should be reported to the teacher
  who will dispose of it in the Broken Glass
  container.
• Do not tightly stopper a flask where gas is being
  created. It could explode.
• Clean and return all glassware at the end of the
  lab.

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Heating Substances

• Never leave a heat source unattended.
• Tie back long hair.

• Do not wear loose or baggy clothing in the lab.
• Hot glass does not look hot! Handle recently
  heated glassware with tongs.
• Do not immerse hot glassware in cold water.  The
  glassware may shatter.
• Never look into a container that is being heated.

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Safety Equipment

• Safety goggles must be worn whenever there is the
  potential for eye damage.
• Goggles must always be worn when heat or
  corrosive chemicals are used.
• Know the locations of all safety equipment in the
  lab fire extinguishers, eye wash station, first
  aid box, fire blanket, fire exits.

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Accidents Injuries
Respond to emergencies sensibly and immediately!

• Inform a teacher if someone requires assistance.
• If chemicals are spilled on skin or in eyes,
  rinse with water for 20 minutes.
• If you break something or spill something, please
  inform a teacher immediately. Do NOT handle
  broken glass!
• If a fire starts, inform a staff member
  immediately STOP DROP ROLL!!!

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When the lab is done . .

• Dispose of chemicals and materials only as
  instructed by your teacher.
• Clean all glassware and put everything away
  according to instructions.
• Wipe the counters clean with paper towels.
• Sinks should be cleaned and should not contain
  any solid material.
• Wash your hands and return your goggles.

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• IF YOURE NOT SURE ABOUT SOMETHING

Ask your TEACHER!!!!
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WHMIS
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WHMISWorkplace Hazardous Materials Information
System

• WHMIS is responsible for
• the determination and labeling of dangerous goods
• The maintenance of material safety data sheets
• Specify criteria of a chemical
• Mutagenicity, carcinogenicity, embryo and
  reproductive toxicity, respiratory tract and skin
  sensitivity

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Common Symbols
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HHSP Hazardous Household Product Symbols
Corrosive
Toxic/ Poisonous
Flammable
Explosive
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