Confined Space Entry

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Confined Space Entry

• Presented by the Office of Environmental Health
  and Safety

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Safety Through Teamwork

• Nothing is so important that it can not be done
  safely.

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Training Outline

• Introduction
• OSHA Regulations
• General Hazards
• Permits
• Atmospheric Testing
• Safety Procedures
• Training and Duties of the Confined Space Entry
  Team
• Review and Quiz

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Introduction

• Confined space definition
• Is large enough that an employee can enter and
  perform assigned work
• Has limited or restricted means for entry or exit
• Is not designed for continuous employee occupancy

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Introduction

• Examples of confined spaces
• storage tanks
• pits
• silos
• vats
• tunnels
• sewers
• shafts
• exhaust ducts

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IntroductionRegulatory Requirements

• OSHA- employee safety- permit confined spaces- 29
  CFR 1910.146
• The employer must assess the workplace to
  determine if hazards are present that necessitate
  the use of PPE

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Permit Space Hazards

• Hazardous atmosphere (too little or too much
  oxygen, flammable or toxic air)
• Engulfment
• Danger from unexpected movement of machinery
• Electrocution
• Heat stress
• Becoming wedged into a narrow space and
  suffocating

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Reducing Risks of Hazards

• Post signs to alert employees to the dangers of
  confined spaces
• Use barriers to keep unauthorized employees out
  of permit spaces
• Develop and use a written space entry program
• Conduct air monitoring and other tests to
  identify and evaluate hazards in each permit
  space
• Ventilate, eliminate, or control the spaces
  atmospheric hazards before entry into the space

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Permits

• Permit space
• Purpose, date authorized length of entry
• Authorized entrants and supervisor by name
• Hazards of the identified space
• Control and isolation methods
• Acceptable entry conditions
• Results of initial and periodic atmospheric
  testing
• Rescue and emergency services to be summoned
• Communication procedures
• Equipment to be provided

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Preparation of Permit Space

• Notify all affected departments
• Post signs and put up barriers to protect
  entrants from traffic and pedestrians
• Blind or disconnect and cap all input lines so
  that no hazardous materials can enter the space
• Empty space of any materials that may be
  hazardous
• Verify breathing safety by air testing
• Add emergency contact telephone numbers

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Atmospheric Testing

• Continuously test and monitor air in all areas
  before entry
• Make sure that the oxygen content is between 19.5
  and 23.5 percent
• List any toxic materials that could be present
  and their permissible exposure limits
• Evaluate heat stress potential
• Control any hazards present before entry
• Evacuate the space and cancel the permit if air
  becomes hazardous

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Monitors
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Monitors

• Simultaneously monitors up to four atmospheric
  hazards
• carbon monoxide
• flammables
• hydrogen sulfide
• variable oxygen levels

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Safety Procedures

• Authorized entrants can enter a permit space only
  after its been tested and found safe for entry
• The assigned entrant has to know what equipment
  to use- and how to use it
• Once prepared, you want to get in and do the
  assigned task as quickly and efficiently as
  possible
• Alert the attendant immediately if you recognize
  a sign or symptom of exposure to a dangerous
  situation

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Training and Duties of the Confined Space Entry
Team

• Duties of the Entry Supervisor
• Verifies that the permit is filled out completely
  and all safety steps listed are taken, then signs
  the form
• Checks conditions to ensure they stay safe
  throughout the work
• Sees that any unauthorized people are removed
• When work is complete, cancels the permit and
  concludes the operation

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Training and Duties of the Confined Space Entry
Team

• Duties of the Attendant
• Maintains an accurate count of whos in the
  space, monitors activities inside and outside of
  the space, and stays in touch with the entrants
• Keeps unauthorized persons out of and away from
  an occupied permit space
• Orders evacuation of the permit space, entrants
  show signs of behavioral effects of hazard
  exposure, or an outside situation that could
  endanger the workers in the space
• Summons rescue and emergency services when needed

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Training and Duties of the Confined Space Entry
Team

• Duties of the Entrant
• Knows the hazards of the space and signs of
  exposure
• Follows personal protective equipment training
  carefully
• Keeps in contact with the attendant, leaves space
  at once if instructed to do so
• Is always ready to evacuate quickly
• Leaves the space and tells the attendant if there
  is danger

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Training and Duties of the Confined Space Entry
Team

• Emergency and Rescue Procedures
• Self rescue
• An entrant evacuates the space with no help
• Non-entry rescue
• Only workers trained in rescue can enter the
  space for the purpose of rescue and only when
  there is another attendant present

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Review and Quiz
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Confined Space Quiz

• 1) A confined space means a space that
• A) Is large enough that an employee can
  enter and perform work
• B) Has limited or restricted means for entry
  or exit
• C) Both AB
• D) None of the above

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Confined Space Quiz

• 2) Examples of confined spaces are
• A) Storage tanks, pits, silos, and vats
• B) Tunnels, sewers, shafts, and exhaust
  ducts
• C) Offices, carpools, and shopping stores
• D) AB

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Confined Space Quiz

• 3) True or False
• The employee must assess the workplace to
  determine if hazards are present that necessitate
  the use of PPE.

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Confined Space Quiz

• 4) Which are examples of permit space
  hazards?
• A) Hazardous atmosphere, engulfment,
  electrocution, and heat stress
• B) Storage tanks, pits, silos, and vats
• C) Tunnels, sewers, shafts, and exhaust ducts
• D) None of the above

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Confined Space Quiz

• 5) What are some ways of reducing risks of
  hazards?
• A) Post signs and use of barriers
• B) Develop and use a written program
• C) Conduct monitoring and ventilate,
  eliminate, or control the hazards of the
  confined space
• D) All of the Above

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Confined Space Quiz

• 6) Which of the following are required on a
  confined space permit?
• A) Permit space, purpose, date, and authorized
  entrants
• B) Hazards of space, control methods,
  acceptable entry, and results of entry
• C) Rescue and emergency services,
  communication procedures, and equipment
• D) All of the above

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Confined Space Quiz

• 7) True or False
• In the preparation of a permit space, you must
  notify all affected departments, post signs and
  barriers to protect entrants, and empty the
  confined space of any hazardous materials.

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Confined Space Quiz

• 8) In the preparation of permit space, you must
• A) Blind or disconnect and cap all input
  lines
• B) Verify breathing safety by air testing and
  add emergency control telephone numbers
  
• C) All the above
• D) None of the above

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Confined Space Quiz

• 9) True or False
• During atmospheric testing, you must evaluate
  heat stress potential and control any hazards
  before entry but need not evacuate the space if
  the air becomes hazardous.

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Confined Space Quiz

• 10) During atmospheric testing, you must
• A) Continuously test and monitor air in all
  areas before entry
• B) Make sure that the oxygen content is
  between 19.5 and 25.5 percent
• C) List any toxic materials that could be
  present and their permissible exposures
• D) AC

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Confined Space Quiz

• 11) True or False
• The PhD Plus simultaneously monitors up to four
  atmospheric hazards which are carbon monoxide,
  flammables, hydrogen sulfide, and variable oxygen
  levels.

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Confined Space Quiz

• 12) Regarding safety procedures entering a
  confined space, which of the following applies
• A) Authorized entrants can enter a permit
  space only after tested and found safe
• B) Each assigned entrant has to know what
  equipment to use and how to use it
• C) Do the task as quickly and efficiently as
  possible
• D) All the above

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Confined Space Quiz

• 13) Duties of the entry supervisor include
• A) Verification of the permit and checks the
  condition of the confined space
• B) Sees that unauthorized people are removed
• C) Cancels the permit when work is done
• D) All the above

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Confined Space Quiz

• 14) Duties of the attendant include
• A) Maintaining an accurate account of whos
  in the space, monitors activities of the space,
  and stays in touch with the entrants
• B) Keeps unauthorized persons away from an
  occupied permit space
• C) Orders the evacuation from the permit space
  and summoning rescue when needed
• D) All the above

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Confined Space Quiz

• 15) Duties of the entrant include
• A) Knowing the hazards of the space and signs
  of exposure
• B) Follows their personal protective
  equipment training and keeps in contact with
  the attendant
• C) All of the above
• D) None of the above

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Confined Space Quiz

• 16) True or False
• Only workers trained in rescue can enter the
  space for the purpose of rescue whether an
  attendant is present or not.