Confined Space EntryConfined Space Entry

Presented by the Office of Environmental Health and Safety

Safety Through Teamwork

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

Training Outline

IntroductionOSHA RegulationsGeneral HazardsPermitsAtmospheric TestingSafety ProceduresTraining and Duties of the Confined Space

Entry Team Review and Quiz

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

Introduction

Examples of confined spaces:storage tankspitssilosvatstunnelssewers shaftsexhaust ducts

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

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

Reducing Risks of HazardsPost signs to alert employees to the dangers of

confined spacesUse barriers to keep unauthorized employees out

of permit spacesDevelop and use a written space entry programConduct air monitoring and other tests to identify

and evaluate hazards in each permit spaceVentilate, eliminate, or control the space’s

atmospheric hazards before entry into the space

Permits

Permit spacePurpose, date & authorized length of entryAuthorized entrants and supervisor by

nameHazards of the identified spaceControl and isolation methodsAcceptable entry conditionsResults of initial and periodic atmospheric

testing Rescue and emergency services to be

summonedCommunication proceduresEquipment to be provided

Preparation of Permit Space

Notify all affected departmentsPost signs and put up barriers to protect

entrants from traffic and pedestriansBlind 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 testingAdd emergency contact telephone numbers

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 entryEvacuate the space and cancel the permit if air

becomes hazardous

Monitors

Monitors

Simultaneously monitors up to four atmospheric hazards:

carbon monoxideflammableshydrogen sulfidevariable oxygen levels

Safety Procedures

Authorized entrants can enter a permit space only after it’s 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

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 removedWhen work is complete, cancels the permit and

concludes the operation

Training and Duties of the Confined Space Entry TeamDuties of the Attendant: Maintains an accurate count of who’s 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

Training and Duties of the Confined Space Entry Team

Duties of the Entrant:Knows the hazards of the space and signs of

exposureFollows personal protective equipment training

carefullyKeeps in contact with the attendant, leaves space

at once if instructed to do soIs always ready to evacuate quicklyLeaves the space and tells the attendant if there is

danger

Training and Duties of the Confined Space Entry Team

Emergency and Rescue Procedures:Self rescue An entrant evacuates the space with no

helpNon-entry rescue Only workers trained in rescue can enter

the space for the purpose of rescue and only when there is another attendant present

Review and Quiz

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 A&B D) None of the above

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) A&B

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.

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

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

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

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.

Confined Space Quiz

8) In the preparation of permit space, you must:A) Blind or disconnect and cap all input

linesB) Verify breathing safety by air testing

and add emergency control telephone numbers C) All the aboveD) None of the above

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.

Confined Space Quiz

10) During atmospheric testing, you must:A) Continuously test and monitor air in all areas before entryB) Make sure that the oxygen content is

between 19.5 and 25.5 percentC) List any toxic materials that could be

present and their permissible exposures

D) A&C

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.

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 safeB) Each assigned entrant has to know what equipment to use and how to use itC) Do the task as quickly and efficiently as possibleD) All the above

Confined Space Quiz

13) Duties of the entry supervisor include:A) Verification of the permit and checks

the condition of the confined spaceB) Sees that unauthorized people are removedC) Cancels the permit when work is doneD) All the above

Confined Space Quiz

14) Duties of the attendant include:A) Maintaining an accurate account of who’s

in the space, monitors activities of the space, and stays in touch with the entrantsB) Keeps unauthorized persons away from an

occupied permit spaceC) Orders the evacuation from the permit space

and summoning rescue when neededD) All the above

Confined Space Quiz

15) Duties of the entrant include:A) Knowing the hazards of the space and signs of exposureB) Follows their personal protective

equipment training and keeps in contact with the attendantC) All of the aboveD) None of the above

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.