SAFETY FIRST!

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SAFETY FIRST!
STHS
Mrs. Cannatelli C222
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FOLLOW ALL INSTRUCTIONS

• Instructions may be verbal or written.
• Read instructions carefully.
• Do not perform unauthorized experiments.
• Know about hazards before you begin.
• READING KNOWING SUCCESS

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ACT IN A RESPONSIBLE MANNER AT ALL TIMES

• The laboratory is a work place.
• The laboratory is not a playroom.
• Horseplay will not be tolerated.

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KNOW YOUR SAFETY EQUIPMENT

• Goggles - for eye protection
• Eyewash station - for flushing of the eyes
• Fire blanket - for smothering clothing fires

• Safety shower - for clothing fires as well as
  extensive chemical spills on body.
• Fire extinguisher - for fires NOT on a person

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WEAR YOUR SAFETY GOGGLES

• for laboratory activities involving
• chemicals
• heating of materials
• glassware

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STAY OUT OF RESTRICTED AREAS

• Certain areas may present special hazards
• ex. the chemical room in the front.
• Enter restricted areas only with teacher
  permission.

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KEEP YOUR WORK AREA CLEAR

• Keep personal items not needed for an experiment
  away from the lab area.
• Keep aisles free of all obstructions
• (book bags etc.).
• Place equipment and materials not needed for a
  lab activity in their proper storage area.

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CLEAN UP ALL SPILLS

• Tell your teacher what was spilled.
• React quickly and quietly
• Clean up minor spills with paper towels.
• Clean up a solid spill with a broom and dustpan
  and dispose of it where indicated by your
  teacher.

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BROKEN GLASSWARE

• Clean up broken glassware with a broom and
  dustpan.
• Dispose of broken glassware in the special box
  provided in the lab area.
• Inform the teacher of the break and get a
  replacement.

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INSTRUCTIONS WHEN USING HOTPLATES

• Do not play with gas valves.
• Do not leave Bunsen burners or hotplates
  unattended.
• Turn off Bunsen burners or hotplates when they
  are not being used.

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ELECTRICAL HAZARDS

• The main concern when using electricity in
  laboratory situations is electrical shock.
• The human body is a good conductor of electricity

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MECHANICAL HAZARDS

• Spinning components can cut skin or clothing.
• The main concern is that loose clothing or hair
  will be caught in the machinery.
• Objects that come into contact with a spinning
  component can cause sparks or can damage the
  equipment.

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HAIR INSTRUCTIONS

• Tie back long hair when using chemicals, heat, or
  equipment with gears or spinning parts.
• Hair preparations such as hairspray, gels, and
  mousse are often very flammable. Their use in a
  lab situation is discouraged.

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PROPER USE OF CHEMICALS AND EQUIPMENT

• Use equipment in the manner indicated by your
  teacher.
• Read the labels on chemicals very carefully.
• Equipment and chemicals are NOT to be removed
  from the laboratory without teacher permission

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THE RIGHT TO KNOW LAW
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DELAWARES HAZARDOUS CHEMICAL INFORMATION ACT

• Is better known as

THE RIGHT TO KNOW LAW
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A Hazard Communication is

• A written document detailing the hazards of using
  a particular chemical
• A sign warning of the potential dangers of a
  particular chemical in the vicinity
• The label on a container instructing one on the
  use of that particular chemical
• Any Communication warning one of a hazard

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THE RIGHT TO KNOW LAW REQUIRES THAT YOU BE
INFORMED OF

• THE IMMEDIATE DANGERS WHEN USING A CHEMICAL
  (ACUTE)
• POSSIBLE LONG TERM HEALTH EFFECTS OF USING A
  CHEMICAL (CHRONIC)

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ACUTE EXPOSURE

• Exposure to a lot of chemical substance in a
  short period of time. A reaction that happens
  right away or within minutes or hours. (burns,
  rashes, nausea)

CHRONIC REACTION

• Exposure to a small amount of chemical
  substance over a long period of time.
• A reaction may take years to develop. (smokers
  hack)

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POSSIBLE LONG TERM (Chronic)HEALTH EFFECTS OF
SOME CHEMICALS

• Cancer
• Respiratory problems
• Birth defects
• Mutations
• Tumors

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CONCENTRATIONS

• DILUTED to make (a liquid) thinner or weaker by
  the addition of water or the like.
• CONCENTRATED to intensify make denser,
  stronger, or purer, esp. by the removal or
  reduction of liquid

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IMMEDIATE DANGERS WHEN USING A CHEMICAL

• Fires
• Explosions
• Irritations to the eyes or skin
• Burns to the skin
• Poisoning

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WHY DO WE NEED TO KNOW ABOUT CHEMICAL HAZARDS ????

• To protect oneself
• To protect our environment
• To protect others
• Each year millions of Americans are exposed to
  chemicals. It is up to each of us to protect
  ourselves, our environment, and each other.

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Key Words

• Caution
• Warning
• Danger

These words are often followed by such words as

• Combustible
• Flammable
• Explosive
• Oxidizer
• Reactive

• Corrosive
• Poison
• Irritant
• Carcinogen (causes
• Cancer)
• Toxic

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COMMON ROUTES OF EXPOSURE

• Ingestion
• Skin / Eye Contact
• Inhalation

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Materials present hazards in three ways

• Health
• Fire
• Reactivity

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HOW DO WE KNOW WHAT IS HAZARDOUS?

• Label contents
• Color coding on the containers
• Number system on the containers
• MSDS - Material Safety Data Sheets

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LABEL CONTENTS

• Name of the chemical
• Chemical formula
• Hazard warning
• Manufacturer name for further safety information
  if needed

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Chemical Warning Labels

• Chemical warning labels may have the following
  information listed

• Instructions in case of exposure
• Antidotes
• Notes to physician
• Handling and storage instructions

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Chemical Warning Labels

• Chemical warning labels may have the following
  information listed

• Identity of chemical
• Signal word
• Hazard Statement
• Precautions
• Fire, Spill and leak instructions

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COLOR CODING ON CONTAINERS

• RED - FLAMMABLE
• YELLOW - REACTIVE
• BLUE - TOXIC OR POISONOUS
• WHITE - CORROSIVE OR CAUSTIC
• GREEN - RELATIVELY NONHAZARDOUS

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NUMBER SYSTEM

• 4 - extremely toxic, flammable, or reactive
• 3 - very toxic, flammable, or reactive
• 2 - moderately toxic, flammable, or reactive
• 1 - irritating, flammable if preheated, or
  reactive if preheated
• 0 - not known to be toxic, flammable, or
  reactive

D.O.T. classifications
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MSDS
Material Safety Data sheet

• Identifies manufacturer
• Gives chemical and physical properties
• Indicates fire and explosion hazard
• Identifies health hazard
• Gives reactivity data
• Indicates storage and handling procedures
• Supplies first aid information
• Details disposal and cleanup methods

MSDS sheets online
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Tolerance Limit Value (TLV)or Permissible
exposure Limit (PEL)

• The amount of exposure that a human being can
  be exposed to a particular hazardous substance
  without having side affects.

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Parts per million (ppm)
The amount of any substance dispersed into
another. If you were to drop a 10 grams of
Kool-Aid powder into a million grams of water
you would have a solution containing 10 parts of
Kool-Aid to 1 million parts of water or simply
just 10 ppm of Kool-Aid to water.

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Where do you find MSDS in school?

• Nurses office
• Main office
• Janitors closets
• Labs
• Wellness center

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Vocabulary to Know

• Acute
• Asphyxiant
• C or ceiling
• Carcinogen
• Chronic
• Combustible
• Concentration
• Corrosive
• Cutaneous
• Dermal

• EPA
• DOT
• Flash point
• Ignitable
• Ingestion
• Inhalation
• Irritant
• Lethal concentration
• Lethal Dose
• Mutagen
• Narcosis

• Oxidation
• Reactivity
• Sensitizer
• Teratogen
• Toxicity
• Toxic
• PEL
• TLV