Confined Space OP-G-2.2

Table of Contents


Purpose

It is the intent of The Florida State University (FSU) to provide every employee with a safe and healthful working environment. The administration at FSU feels that any faculty or staff members who, during the course of their employment activities, are required to enter confined spaces should be protected.

This Permit-Required Confined Space (PRCS) Program is provided to protect authorized employees who must enter confined spaces and may be exposed to hazardous atmospheres; engulfment in materials; conditions which may trap or asphyxiate due to converging or sloping walls; or contain any other safety or health hazard. It is also provided to prevent unauthorized employees from entering PRCS's.

Many workplaces contain confined spaces, not designed for human occupancy, which due to their configuration hinder employee activities including entry, work, and exit. Asphyxiation is the leading cause of death in confined spaces. The nature of confined spaces can cause toxic vapors to become highly toxic and harmful, and in some cases immediately dangerous to life and health (IDLH) unless adequate precautions are taken. There have also been cases when employees entering confined spaces were harmed, ground-up by augers, crushed, or battered by moving parts inside vessels, mixers, etc.

This PRCS Program, as set forth in the following manual, describes the measures necessary to prevent unauthorized entry into permit-required confined spaces, to identify and evaluate permit space hazards, and to implement the means, procedures and practices necessary for safe entry operations. This manual has been developed by the Department of Environmental Health and Safety (EH&S).

The Coordinator, EH&S, Industrial Hygiene (Industrial Hygiene Coordinator) is charged with administering the Program for FSU. The Industrial Hygiene Coordinator is also responsible for reviewing the Program on an annual basis to ensure its effectiveness. The results of the evaluation will be presented in a written report that lists plans to correct any faults, if discovered, and the target dates for their implementation.

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Definitions

Acceptable entry conditions - The conditions that must exist in a permit space to allow entry and to ensure that employees involved with a permit-required confined space can safely enter into and work within the space.

Attendant - An individual stationed outside one or more permit spaces who monitors the authorized entrants and who performs all attendant's duties assigned in the employer's permit space program.

Authorized entrant - An employee who is authorized by the employer to enter a permit space.

Blanking or blinding - The absolute closure of a pipe, line, or duct by the fastening of a solid plate (such as a spectacle blind or a skillet blind) that completely covers the bore and that is capable of withstanding the maximum pressure of the pipe, line or duct with no leakage beyond the plate.

Confined space - A space that:

Double block and bleed - The closure of a line, duct or pipe by closing and locking or tagging two in-line valves and by opening and locking or tagging a drain vent valve in the line between the two valves.

Emergency - Any occurrence (including any failure of hazard control or monitoring equipment) or event internal or external to the permit space that could endanger entrants.

Engulfment - The surrounding and effective capture of a person by a liquid or finely divided (flowable) solid substance that can be aspirated to cause death by filling or plugging the respiratory system or that can exert enough force on the body to cause death by strangulation, constriction or crushing.

Entry - The action by which a person passes through an opening into a permit-required confined space. Entry includes ensuing work activities in the space and is considered to have occurred as soon as any part of the entrant's body breaks the plane of an opening into the space.

Entry Permit - The written or printed document that is provided by the employer to allow and control entry into a permit space and that contains the following information:

Entry Supervisor - The person (such as the employer, foreman, or crew chief) responsible for determining if acceptable entry conditions are present at a permit space where entry is planned, for authorizing entry and overseeing entry operations, and for terminating entry as required by OSHA's 1910.146 (j).

NOTE: An entry supervisor also may serve as an attendant or as an authorized entrant, as long as that person is trained and equipped as required by OSHA's 1910.146 for each role he or she fills. Also the duties of the entry supervisor may be passed from one individual to another during the course of an entry operation.

Hazardous atmosphere - An atmosphere that may expose employees to the risk of death, incapacitation, impairment or ability to self rescue (that is, escape unaided from a permit space) injury, or acute illness from one or more of the following causes:

NOTE: This concentration may be approximated as a condition in which the dust obscures vision at a distance of 5 feet or less.

Hot work permit - The employer's written authorization to perform operations (for example, riveting, welding, cutting, burning and heating) capable of providing a source of ignition.

Immediately Dangerous to Life or Health (IDLH) - Any condition that poses an immediate or delayed threat to life or that would cause irreversible adverse health effects or that would interfere with an individual's ability to escape unaided from a permit space.

NOTE: Some materials - hydrogen fluoride gas and cadmium vapor, for example - may produce immediate transient effects that, even if severe, may pass without medical attention, but are followed by sudden, possibly fatal collapse 12-72 hours after exposure. The victim "feels normal" from recovery from transient effects until collapse. Such materials in hazardous quantities are considered to be "immediately" dangerous to life or health.

Inerting - The displacement of the atmosphere in a permit space by a noncombustible gas (such as nitrogen) to such an extent that the resulting atmosphere is noncombustible.

NOTE: This procedure produces an IDLH oxygen-deficient atmosphere.

Isolation - The process by which a permit space is removed from service and completely protected against the release of energy and material into the space by such means as: blanking or blinding; misaligning or removing sections of lines, pipes, ducts; a double block and bleed system; lockout or tagout of all sources of energy; or blocking or disconnecting all mechanical linkages.

Line breaking - The intentional opening of a pipe, line or duct that is or has been carrying flammable, corrosive, or toxic material, an inert gas, or any fluid at a volume, pressure, or temperature capable of causing injury.

Non-permit confined space - A confined space that does not contain or, with respect to atmospheric hazards, have the potential to contain any hazard capable of causing death or serious physical harm.

Oxygen deficient atmosphere - An atmosphere containing less than 19.5 percent oxygen by volume.

Oxygen enriched atmosphere - An atmosphere containing more than 23.5 percent oxygen by volume.

Permit-required confined space (permit space) - A confined space that has one or more of the following characteristics:

Permit-required confined space program (permit space program) - The employer's overall program for controlling, and, where appropriate, for protecting employees from permit space hazards and for regulating employee entry into permit spaces.

Permit system - The employer's written procedure for preparing and issuing permits for entry and for returning the permit space to service following termination of entry.

Prohibited condition - Any condition in a permit space that is not allowed by the permit during the period when entry is authorized.

Rescue service - The personnel designated to rescue employees from permit spaces.

Retrieval system - The equipment (including retrieval line, chest or full-body harness wristlets, if appropriate, and a lifting device or anchor) used for non-entry rescue of persons from permit spaces.

Testing - The process by which the hazards that may confront entrants of a permit space are identified and evaluated. Testing includes specifying the tests that are to be performed in the permit space.

NOTE: Testing enables employers both to devise and implement adequate control measures for the protection of authorized entrants and to determine if acceptable entry conditions are present immediately prior to, and during, entry.

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General Requirements

This PRCS Program covers the safety requirements including a permit system, for employees to enter confined spaces, designated as permit-required confined spaces (permit spaces) which:

Permit-Required Confined Spaces (PRCS's)

The workplace has been evaluated to identify the permit required confined spaces. See Appendix 1 for a complete list of all the PRCS's.

Alternate Procedures for Entering PRCS's

FSU employees may use alternate procedures for entry into permit spaces under the following conditions:

If alternate procedures are used:

Changes in Space Use or Configuration

When there are changes in the use or configuration of a non-permit confined space that might increase the hazards to entrants, the space is reevaluated and, if necessary, reclassified as a permit-required confined space.

Confined Space Reclassification

A permit-required confined space may be reclassified as a non-permit confined space under the following procedures:

Contractors

In some cases contractors and other non-employees may enter permit spaces to perform work. When contractors and others enter permit spaces the following procedures are followed:

FSU Departments

The following departments have been recognized as having personnel who enter permit-required confined spaces to perform their work. Others may be added as they become known:

Departments and supervisors are responsible for the following:

The EH&S Department is responsible for the following:

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Permit-Required Confined Space Program

This Permit-Required Confined Space Program is designed to prevent unauthorized entry into permit confined spaces; identify and evaluate hazards; and establish procedures and practices for safe entry including testing and monitoring conditions. The Program requires an attendant to be stationed outside permit spaces during entry; procedures to summon rescuers and prevent unauthorized personnel from attempting rescue; and a system for preparing, issuing, using and canceling entry permits. It also includes procedures for entry operations and canceling entry permits and review of the permit program at least annually and additionally as necessary.

The following measures have been implemented as necessary to prevent unauthorized employee entry into permit spaces:

The following means, procedures, and practices necessary for safe permit space entry operations have been implemented:

Equipment

The following equipment is typical for confined space entry and is to be provided by each department, at no cost to employees, maintained properly, and used properly to ensure the safety of employees entering permit spaces.

Evaluating Permit Space Conditions

Permit space conditions are evaluated (tested/monitored) when entry operations are conducted as follows:

Testing and Monitoring

Attendants

At least one attendant is required outside the permit space into which entry is authorized for the duration of the entry operation.

All attendants are required:

Entrants

All entrants must be authorized by the entry supervisor to enter permit spaces, have received the required training, use the proper equipment, and observe the entry procedures and permit. The following entrant duties are required:

Entry Supervisors

Entry supervisors are responsible for the overall permit space entry and must coordinate all entry procedures, tests, permits, equipment and other relevant activities. The following entry supervisor duties are required:

Testers and Monitors

The accuracy of testing and monitoring equipment may be significantly affected under certain conditions of humidity, pressure, temperature, or by the presence of interfering chemicals. However, if the equipment is properly selected, calibrated, maintained and operated by well trained employees, the confined space testing and monitoring needs can be effectively met.

All persons performing tests and monitoring for permit space entry have been properly trained in the use and limitations of the equipment.

Permit System

The entry permit is a vital part of the permit space entry program which documents that the required measures have been taken to ensure entrant safety. All pertinent safety requirements must be recorded on the permit including the isolation, ventilation, tests and monitoring, personal protective equipment and other equipment necessary for entrant safety.

The following requirements must be recorded (documented) on the entry permit. See form in Appendix 4 for a sample permit.

All contractor entry into permit spaces must comply with all sections of this procedure.

Training

All entry supervisors, attendants, and entrants are properly trained initially and refresher training provided when duties and/or space hazards change or whenever an evaluation determines inadequacies in the employees' knowledge. The training provides employees with the necessary understanding, skills and knowledge to safely enter, work in and exit permit spaces. All training is minimally documented with the employees' names, signature of the trainer, and training date.

Specific training requirements include, but are not limited to:

Rescue and Emergency Services

Rescue and emergency services are provided by the Tallahassee Fire Department. Dial 911 for emergencies. The Tallahassee Fire Department has been provided with the following:

Non-Entry Rescue

Retrieval systems and methods have been developed for entrants to use when entering permit spaces, when the equipment does not increase the overall risk of entry. The systems are:

Permits and Forms

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Appendix 1: Permit-Required Confined Spaces Inventory

In general, FSU has the following types of permit-required confined spaces:

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Appendix 2: Confined Space Entry Permit

Format
Form Number Form Name
web doc pdf
  EHS 4-1 Confined Space Entry Permit

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Appendix 3: Certification for Reclassifying Confined Spaces

Format
Form Number Form Name
web doc pdf
  EHS 4-3 Reclassifying a Confined Space Form

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Appendix 4: Certification for Entering Permit-Required Confined Spaces Using Alternate Procedures

Format
Form Number Form Name
web doc pdf
  EHS 4-2 Entering Permit-Required Confined Spaces Using Alternate Procedures

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References

  1. Occupational Safety and Health Administration (OSHA) 29 CFR 1910.146?1995, Permit?required confined spaces

  2. OSHA 29 CFR 1910.268-1995, Telecommunications

  3. Complete Confined Spaces Handbook, John F. Rekus, 1994

  4. Florida Department of Labor and Employment Security, Division of Safety, Sample Confined Space Entry Program

  5. Florida Administrative Code 38I-20, Safety and Health Standards

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