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- GENERAL SERVICES ADMINISTRATION
- Washington, DC 20405
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-
- FIRMR BULLETIN C-23
-
- TO: Heads of Federal agencies
-
- SUBJECT: Limitation on the use of halon in fire extinguishing
- systems
-
- 1. Purpose. This bulletin alerts Federal agencies that the use of
- halon may be limited in the future due to its harmful effects on
- the stratospheric ozone layer and that alternatives to halon fire
- extinguishing systems in electronic equipment areas (e.g., computer
- rooms, telecommunications rooms, and auxiliary facilities) should
- be considered.
-
- 2. Expiration date. This bulletin contains information of a
- continuing nature and will remain in effect until canceled.
-
- 3. Contents.
-
- Topic Paragraph
-
- Related material..........................................4
- Information and assistance................................5
- General...................................................6
- Agency responsibility.....................................7
- Existing halon fire suppression systems...................8
- New halon fire suppression systems........................9
- GSA Public Building Service (PBS) restrictions............10
- Cancellation..............................................11
-
- 4. Related material.
-
- a. Evironmental Protection Agency material in:
- (1) 40 CFR Part 82
- (2) Federal Register
- (i) December 14, 1987, 52 FR 47486-47523
- (ii) August 12, 1988, 53 FR 30566-30568
- (iii) February 9, 1989, 54 FR 6376-6379
- (iv) April 3, 1989, 54 FR 13502-13503
-
- b. PBS Handbook, Safety and Environmental Management Program
-
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-
- TC 90-1
-
- FEDERAL INFORMATION RESOURCES MANAGEMENT REGULATION
- APPENDIX B
- FIRMR Bulletin C-23
-
-
- 5. Information and assistance.
-
- (a) Problems or concerns regarding the performance or
- installation of fire protection systems in electronic equipment
- areas located in PBS controlled space should be brought to the
- attention of the respective GSA building manager or GSA's regional
- Safety and Environmental Management Branch Chief.
-
- (b) For assistance in developing specifications to reduce
- unwanted or accidental discharge of halon extinguishing systems,
- call or contact:
-
- General Services Administration
- Public Building Serivce
- Safety and Environmental Management Division (PMS)
- 18th and F Sts., NW
- Washington, DC 20405
-
- Telephone: FTS 241-1464 or (202) 501-1464.
-
- (c) Further assistance or additional information related to
- this bulletin may be obtained by contacting:
-
- General Services Administration
- Information Resources Management Service
- Policy and Regulations Division (KMP)
- 18th and F Sts., NW
- Washington, DC 20405
-
- Telephone: FTS 241-3194 or (202) 501-3194
-
- 6. General. In 1987, the United States and several other
- industrial nations signed the "Montreal Protocol on Substances that
- Deplete the Ozone Layer." Provisions of this agreement provide
- that the production of halon shall not increase beyond 1986 levels
- through 1992. As a result, halon purchase prices may rise and
- regulatory restrictions may be imposed on its testing or use in
- Federal facilities. This could adversely affect Federal agencies
- that use halon for fire protection in electronic equipment areas.
- Moreover, new scientific information has suggested that the rate of
- ozone depletion is greater than previously thought and additional
- reductions in the usage of chlorofluorocarbons (CFCs) and halon are
- likely through the Montreal Protocol.
-
-
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- FIRMR Bulletin C-23
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- 7. Agency responsibility. Agencies should evaluate alternate
- methods of fire protection and should consider the risks of damage
- to electronic equipment areas, to mission interruption, to the
- building, and to the environment versus the cost of protection
- before deciding whether to use halon, sprinklers, or both. In some
- cases, until an appropriate halon substitute is available, properly
- planned and designed halon extinguishing systems may be justified.
-
- 8. Existing halon fire suppression systems. Agencies should
- review the maintenance plans for their halon systems to minimize
- the possibility of an accidental discharge. If existing halon
- flooding systems and the associated early warning smoke detection
- systems do not conform with the current edition of the National
- Fire Protection Association Standard No. 12 A, Halon 1301 Fire
- Extinguishing Systems, the agency should consider upgrading the
- system or disconnecting the system in sprinkler protected space.
- The charged halon cylinders should then be removed and returned to
- the supplier for recycling.
-
- 9. New halon fire suppression systems. Agencies should consider
- the intent of the Montreal Protocol and the possibility of limited
- availability and increased cost of halon when planning for
- electronic equipment area fire protection. Prior to any decision
- to install halon fire extinguishing systems, consideration should
- also be given to the following information:
-
- a. Halon decomposition products (produced as part of fire
- extinguishing actions) are extremely toxic. After a fire, prompt
- ventilation of the area must be provided and forced ventilation
- will often be necessary;
-
- b. Halon will not extinguish all fires and, therefore, fire
- department hose streams may be used causing greater damage than
- water discharged from sprinklers;
-
- c. Halon systems are activated by very small fires which could
- possibly be extinguished with portable fire extinguishers;
-
- d. Halon systems are subject to false actuation;
-
- e. The potential for water damage from sprinklers is
- frequently overstated since the probability of a sprinkler system
- leak is very low;
-
- f. Halon systems are very expensive;
-
- g. Halon will not extinguish smoldering fires;
-
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- FIRMR Bulletin C-23
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-
- h. Halon systems provide no protection against catastrophic
- losses if the initial small fire is not extinguished; and
-
- i. Halon 1301 has an ozone depletion rate ten (10) times
- greater than CFC used for refrigeration.
-
- 10. GSA Public Building Service (PBS) restrictions.
-
- a. When a halon extinguishing (flooding) system is provided
- in space controlled by PBS and the space is not sprinkler
- protected, then PBS requires a backup halon supply that can be
- manually discharged.
-
- b. PBS strongly discourages the use of halon extinguishing
- systems in electronic equipment areas controlled by PBS either in
- addition to, or in place of, automatic sprinkler protection.
-
- c. Before any halon system is authorized in areas controlled
- by PBS, the agency should acknowledge in writing the limitations
- described in paragraph 8 above.
-
- 11. Cancellation. FIRMR Bulletin 64 is canceled.
-
-
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-
-
- Thomas J. Buckholtz
- Commissioner
- Information Resources
- Management Service
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