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1 NFPA 11 Standard for Low , Medium , and High Expansion Foam 2005 Edition Copyright 2005, National Fire Protection Association, All Rights Reserved This edition of NFPA 11, Standard for Low , Medium , and High Expansion Foam, was prepared by the Technical Committee on Foam and acted on by NFPA at its November Association Technical Meeting held November 13 17, 2004, in Miami Beach, FL. It was issued by the Standards Council on January 14, 2005, with an effective date of February 7, 2005, and supersedes all previous editions. This edition of NFPA 11 was approved as an American National Standard on February 7, 2005. Origin and Development of NFPA 11 NFPA committee activity in this field dates from 1921, when the Committee on Manufacturing Risks and Special Hazards prepared standards on foam as a section of the general Standard on Protection of Fire Hazards, Incident to the Use of Volatiles in Manufacturing Processes.

2 Subsequently the standards were successively under the jurisdiction of the Committee on Manufacturing Hazards and the Committee on Special Extinguishing Systems, prior to the present committee organization. The present text supersedes the prior editions adopted in 1922, 1926, 1931, 1936, 1942, 1950, 1954, 1959, 1960, 1963, 1969, 1970, 1972, 1973, 1974, 1975, 1976, and 1978. It also supersedes the 1977 edition of NFPA 11B. The 1983 edition was completely rewritten to include all the material formerly contained in NFPA 11B, Standard on Synthetic and Combined Agent Systems. The standard was revised in 1988 and again in 1994 to more clearly state the requirements and to separate mandatory requirements from advisory text.

3 The standard was revised for the 1998 edition to include requirements for foam systems for marine applications and to provide guidance relating to the environmental impact of foam system discharges. The 2002 edition was revised to address mixing of foam concentrates and to clarify requirements related to foam concentrate pumps. Requirements for medium and Copyright NFPA high expansion foam systems have been included. The 2005 edition reorganizes the requirements for low , medium , and high expansion foam to better incorporate the requirements of NFPA 11A. Technical Committee on Foam Christopher P. Hanauska, Chair Hughes Associates, Inc.

4 , MD [SE] Jean Pierre Asselin, FireFlex Systems, Inc., Canada [M] V. Frank Bateman, Kidde Fire Fighting, CA [M] Gene E. Benzenberg, Alison Control Incorporated, NJ [M] W. D. Cochran, Verde Environmental, TX [M] Arthur R. dooley , Jr., dooley Tackaberry, Inc., TX [IM] Rep. National Association of Fire Equipment Distributors Robert A. Green, Public Service Electric & Gas Company, NJ [U] Rep. Edison Electric Institute Randall Hendricksen, ChemGuard, Incorporated, TX [M] Eldon D. Jackson, The Viking Corporation, MI [M] Rep. National Fire Sprinkler Association Kevin P. Kuntz, Marsh USA Inc., NJ [I] Eric LaVergne, Williams Fire and Hazard Control, TX [M] Joan M.

5 Leedy, Dyne Technologies, MN [IM] Ronald Mahlman, The RJA Group, Inc., CA [SE] Robert C. Merritt, FM Global, MA [I] Rep. FM Global/FM Engineering & Research Edward C. Norman, Aqueous Foam Technology, Inc., PA [SE] Keith Olson, Tyco Suppression Systems, WI [M] David W. Owen, ExxonMobil Corporation, VA [U] Rep. American Petroleum Institute Copyright NFPA Michael F. Pierson, CSC Advanced Marine, DC [SE] Fay Purvis, Vector Fire Technology, Inc., PA [SE] Niall Ramsden, Resource Protection International, England [SE] Lynn A. Rawls, GE Global Asset Protection Services, MS [I] Rep. GE Global Asset Protection Services Tom Reser, Edwards Manufacturing, OR [M] Gaston Gus J.

6 Santerre, Integrated Protection Services Inc., CA [IM] Rep. American Fire Sprinkler Association Orville M. Slye, Jr., Loss Control Associates Inc., PA [SE] Howard L. Vandersall, Lawdon Fire Services, Inc., CA [SE] Klaus Wahle, Coast Guard, DC [E] Michel Williams, Ultramar Canada, Ltd., Canada [U] Rep. NFPA Industrial Fire Protection Section Kenneth W. Zastrow, Underwriters Laboratories Inc., IL [RT] Alternates Randall Eberly, Coast Guard Headquarters, DC [E] (Alt. to K. Wahle) Mitchell Hubert, Ansul Incorporated/Tyco International, WI [M] (Alt. to K. Olson) William E. Janz, GE Global Asset Protection Services, IL [I] (Alt.)

7 To L. A. Rawls) George E. Laverick, Underwriters Laboratories Inc., IL [RT] (Alt. to K. W. Zastrow) Raymond Quenneville, FireFlex Systems, Inc., Canada [M] (Alt. to J. P. Asselin) Joseph L. Scheffey, Hughes Associates, Inc., MD [SE] (Alt. to C. P. Hanauska) Donald H. Seaman, CSC Advanced Marine, DC [SE]. Copyright NFPA (Alt. to M. F. Pierson) Clark D. Shepard, ExxonMobil Corporation, VA [U] (Alt. to D. W. Owen) John A. Toney, dooley Tackaberry, Inc., TX [IM] (Alt. to A. R. dooley ) Nonvoting Richard F. Murphy, Cranford, NJ [SE] (Member Emeritus) David R. Hague, NFPA Staff Liaison This list represents the membership at the time the Committee was balloted on the final text of this edition.

8 Since that time, changes in the membership may have occurred. A key to classifications is found at the back of the document. NOTE: Membership on a committee shall not in and of itself constitute an endorsement of the Association or any document developed by the committee on which the member serves. Committee Scope: This Committee shall have primary responsibility for documents on the installation, maintenance, and use of foam systems for fire protection, including foam hose streams. NFPA 11 Standard for Low , Medium , and High Expansion Foam 2005 Edition IMPORTANT NOTE: This NFPA document is made available for use subject to important notices and legal disclaimers.

9 These notices and disclaimers appear in all publications containing this document and may be found under the heading Important Notices and Disclaimers Concerning NFPA Documents. They can also be obtained on request from NFPA or viewed at NOTICE: An asterisk (*) following the number or letter designating a paragraph indicates that explanatory material on the paragraph can be found in Annex A. Changes other than editorial are indicated by a vertical rule beside the paragraph, table, or figure in which the change occurred. These rules are included as an aid to the user in identifying changes from the previous edition. Where one or more complete paragraphs have been deleted, the deletion is indicated by a bullet ( ) between the paragraphs that remain.

10 A reference in brackets [ ] following a section or paragraph indicates material that has been extracted from another NFPA document. As an aid to the user, the complete title and edition of the source documents for mandatory extracts are given in Chapter 2 and those for nonmandatory extracts are given in Annex I. Editorial changes to extracted material consist of revising references to an appropriate division in this document or the inclusion of the Copyright NFPA document number with the division number when the reference is to the original document. Requests for interpretations or revisions of extracted text shall be sent to the technical committee responsible for the source document.