Safety

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Safety

• Engineering Lab Safety

By Christie Schmitt
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Essential Questions

• Why is lab safety important in your engineering
  lab?

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Occupational Statistics

• Occupational Safety is the most important task or
  job skill workers can master!
• The Statistics
• On average 15 workers die in the US each day from
  work related injuries.
• Nearly 3,450 are injured (most of which have a
  year or less on the job)
• Leading causes of injuries are overexertion,
  contact with objects or equipment, and falls.

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Work Related Injuries
Injury
Sprains, strains, tears 525,390 41.7
Bruises 114,680 9.1
Cuts, punctures 114,140 9
Fractures 94,040 7.4
Heat Burns 18,510 1.4
Carpal Tunnel Syndrome 18,710 1.4
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Basic Safety

• Know the location of all fire extinguishers. Know
  which extinguisher contains the right
  fire-fighting agent for each type of fire
• Class A wood paper products
• Class B flammable liquids
• Class C electrical equipment
• Always wear eye protection. Even if youre not
  doing anything, other people are and a flying
  piece of wood or metal from their job can easily
  injure you.

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Basic Safety

• Always clean up sawdust it can be just as
  slippery as a spilled liquid, oil or grease.
• Dont use screwdrivers as chisels or pry bars.
• Never carry sharp tools in your pockets.
• Wear suitable clothing. Remove or fasten loose
  clothing, neckties, or jewelry. Roll loose
  sleeves to elbows.
• Dont work with oily or greasy hands.
• Plan your work before you start. If youre
  cutting a large piece of wood, ask for help
  before you start cutting. Dont wait until youre
  in trouble.
• Secure all small work short work in a vise or
  with a clamp.

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Basic Safety

• Dont pry or hammer with a file. It may shatter.
• Securely fasten long hair or hair styles that
  could create a hazard, or wear a hair cover.
• Handle all sheet metal carefully. A metal edge
  can be as sharp as the tool which cut it.
• Handle sharp-edged tools pointed tools with
  care. Carry pointed tools with the points down.
  Carry all tools so they dont pose a danger to
  the people around you.
• Report any equipment that doesnt seem to work
  properly.

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Basic Safety

• Report all injuries, no matter how slight, when
  they occur. Even if it doesnt seem serious, it
  can become infected days later if not properly
  treated.
• Wear the proper safety equipment for the job.
• Keep the aisles clear. Dont leave extension
  cords where someone could trip over them. If they
  must go across an aisle, fasten them to the
  floor.
• Place oily rags other combustible materials in
  approved metal containers.
• Cut away from yourself when you use chisels and
  other edged tools.
• Dont distract or crowd around people while
  theyre working.

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Safety Rules for Hand Tools

• Always wear eye protection.
• Wear the right safety equipment for the job.
• Use tools that are the right size and right type
  for your job.
• Follow the correct procedure for using every
  tool.
• Keep your cutting tools sharp and in good
  condition.
• Dont work with oily or greasy hands.
• Handle sharp-edged and pointed tools with care.
• Always carry pointed tools by your side with the
  points and heavy ends down.
• Secure all small work short work with a vise or
  clamp.

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Safety Rules for Hand Tools

• Never carry tools in your pockets.
• Dont use tools which are loose or cracked.
• Keep your punches chisels in good condition.
  Mushroomed heads can chip cause injuries.
• Dont use a file without a handle..
• Dont pry or hammer with a file. It may shatter.
• Dont use screwdrivers as chisels or pry bars.
• Dont try to increase your leverage by using a
  cheater with a wrench. Wrenches are designed at
  the right strength for their size and length.
• After using a tool clean it and return it to its
  proper storage place.

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Safety Rules for Hand Tools

• If anything breaks or malfunctions report it to
  your instructor at once.
• Use the right type of tool for the job.
• Never place tools materials where they hang on
  the edge of a bench.
• Dont use tools for things they werent meant
  for.
• Store tools and materials vertically, with the
  points and heavy end down.
• Cut away from yourself when you use chisels and
  other edged tools.
• Dont force screws make sure that the correct
  screw for the job is being used.

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Safety Rules for Power Tools

• Dont operate a machine until receiving proper
  instruction, fully understanding how to use it,
  you have permission.
• Wear eye protection
• Use all safety guards exactly as they are
  supposed to be used.
• Wear ear protection.
• Make all adjustments to machines with the power
  off.
• Start stop the machine yourself. Stay with the
  machine until it stops.
• Keep a safe distance between your hands all
  moving parts on the machine.
• Make sure everyone is clear before you turn on
  the power.

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Safety Rules for Power Tools

• Never work on a machine or power tools when
  youre tired or hurried.
• Operate the machine by yourself - unless you need
  a helper.
• When two people work on a machine, The person who
  is operating the machine should give all the
  instructions the person who is helping should
  follow them.
• Give your machine your full attention. Dont look
  away or talk to others.
• Never startle someone who is using a power tool
  or machine. Dont speak to or distract the
  operator in any way.

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Safety Rules for Power Tools

• PLAN YOUR WORK BEFORE YOU BEGIN. If youre going
  to be cutting a big piece, get help BEFORE you
  start. Dont wait until youre in trouble.
• DONT leave a machine unattended while its
  running.
• DISCONNECT the electrical power before you oil or
  clean a machine.
• Keep your WORK AREA CLEAR of scrap, liquids,
  other items.
• DONT LEAN or LOUNGE on machines.
• Notify your instructor - AT ONCE - if anything
  breaks or malfunctions.
• Get first aid treatment for EVERY injury - even
  the slightest scratch.

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Safety Rules for Electronics

• Always wear your safety glasses.
• Keep soldering irons in their protective STAND
  when not in use.
• Always cut wire leads so the clipped wire falls
  on the table top and not toward others.
• Do not touch the tip end of a soldering iron to
  check for heat.
• Avoid an earth ground when working with AC
  powered units.
• Only work with powered units when necessary for
  troubleshooting.
• Avoid skin contact with chemicals.

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Safety Rules for Electronics

• Replace all screws, not just some.
• Use the correct cleaning solvents for the job.
• Avoid pinching wires when putting equipment back
  together.
• Use a heat sink when soldering temperature-sensiti
  ve components.
• Never solder a circuit that has the power
  applied.
• Double check circuits for proper connections and
  polarity prior to applying the power.
• Observe polarity when connecting polarized
  components or test equipment into a circuit.

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Safety Rules for Electronics

• When soldering a multi-pin component, avoid
  excessive heating to one area of the component
  Do not go from pin to pin in a straight line.
• Make sure test instruments are set for proper
  function and range prior to taking a measurement.
• When measuring uncertain qualities, start with
  the range switch on the highest setting.
• Always replace shields that were removed during
  service to avoid signal radiation.
• When cutting with an X-Acto knife, avoid cutting
  towards yourself.

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Safety Rules for Electronics

• Apply heat from a soldering pencil for no more
  then a couple of seconds to avoid heat damage.
• Keep the INTENSITY on oscilloscopes as LOW as
  possible when in use and all the way down when
  not in use to avoid burning out the screen.
• Always OBSERVE POLARITY when connecting
  components into a circuit, especially with
  electrolytic capacitors.
• Always READ the MSDS (Material Safety and Data
  Sheet) for all chemicals prior to their use.

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Do you know your safety information?

• Remember, safety is important!
• Most safety is common sense. Think before you
  act!
• All students will be required to pass a safety
  test with the accepted score.