NFPA 85: Boiler and Combustion Systems Hazards Code

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NFPA 85:
2011 Edition

Item #: 8511

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What is NFPA 85?

NFPA 85 contributes to operating safety and prevents explosions and implosions in boilers with greater than 12.5 MMBTUH, pulverized fuel systems, and heat recovery steam generators. Official document scope

NFPA 85: Document Scope

1.1* Scope. This code shall apply to single burner boilers, multiple burner boilers, stokers, and atmospheric fluidized-bed boilers with a fuel input rating of 3.7 MWt (12.5 million Btu/hr) or greater, to pulverized fuel systems, to fired or unfired steam generators used to recover heat from combustion turbines [heat recovery steam generators (HRSGs)], and to other combustion turbine exhaust systems. 1.1.1 This code shall cover design, installation, operation, maintenance, and training. 1.1.2 This code shall cover strength of the structure, operation and maintenance procedures, combustion and draft control equipment, safety interlocks, alarms, trips, and other related controls that are essential to safe equipment operation. 1.1.3 Coordination of the design and operating procedures of the boiler furnace or HRSG system and any flue gas cleanup systems downstream of the postcombustion gas passes shall be required. Such coordination shall include requirements for ensuring a continuous flow path from the combustion air inlet through the stack.

What does NFPA 85 address?

Provisions apply to boiler design, installation, operation, maintenance, and training for the full range of large boiler installations and pulverized fuel systems. Among topics covered are strength of the structure, combustion and draft control equipment, safety interlocks, alarms, trips, and other related controls that are essential to safe equipment operation.Table Of Contents.

Archived revision information

NFPA 85, 2011 Edition: Archived Revision Information

View archived proposals, comments and other records related to the development of this edition.

Read the archived revision information

NFPA 85, 2011 Edition: Archived Revision Information

Report on Proposals (ROP)

Proposals can be submitted for text to be amended or included in NFPA Codes and Standards. Following the Call for Proposals period, the responsible Technical Committee or Panel holds a meeting to consider and act on all submitted proposals. The committee or panel may also develop its own proposals. A document known as the Report on Proposals (ROP) is prepared containing all the Public Proposals, Technical Committees' action on each Proposal, as well as all Committee-generated proposals. The ROP for the document in question is submitted for the approval of the responsible TC or Panel by a formal written ballot. If the ROP does not receive approval via written ballot in accordance with NFPA rules, the Report is returned to the committee for further consideration and is not published. If the necessary approval is received, the ROP is published in a compilation of Reports on Proposals issued by NFPA twice yearly for public review and comment, and the process continues to the next step. The ROP is published and widely distributed and anyone may download or request a copy.

Report on Proposals (ROP) (PDF, 2 MB)

ROP Meeting Notice

Note: Please contact the appropriate staff liaison (listed on the Technical Committee tab) for information on attending an NFPA Technical Committee meeting as a guest. Read NFPA"s Regulations Governing Committee Projects (Section 3.3.3.3) for further information.

Technical Correlating Committee, September 15-16, 2009, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 98 KB)

Fluidized Bed Boilers, July 14, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 35 KB)

Fundamentals of Combustion System Hazards, July 15-16, 2008, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 35 KB)

Fundamentals of Combustion System Hazards, May 27-28, 2009, Residence Inn Marriott, Atlanta, GA, 404-745-1000 (PDF, 64 KB)

Heat Recovery Steam Generators, September 19-20, 2007, Orlando, FL, Siemens Power Generation (PDF, 12 KB)

Heat Recovery Steam Generators, June 15-16, 2009, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 61 KB)

Heat Recovery Steam Generators, July 16-17, 2008, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 62 KB)

Multiple Burner Boilers, December 16, 2008, Conference Call (PDF, 26 KB)

Multiple Burner Boilers, June 17-19, 2009, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 62 KB)

Pulverized Fuel Systems, June 25, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 34 KB)

Single Burner Boilers, June 24, 2009, Web/Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 34 KB)

Stoker Operations, July 13, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 34 KB)

ROP Meeting Agenda

Technical Correlating Committee, September 15-16, 2009, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 111 KB)

Fluidized Bed Boilers, July 14, 2009, Web Conference Meeting, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 153 KB)

Fundamentals of Combustion System Hazards, July 15-16, 2008, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 17 KB)

Fundamentals of Combustion System Hazards, May 27-28, 2009, Residence Inn Marriott, Atlanta, GA, 404-745-1000 (PDF, 29 KB)

Heat Recovery Steam Generators, September 19-20, 2007, Siemans Power Generation, Orlando, FL (PDF, 158 KB)

Heat Recovery Steam Generators, July 16-17, 2008, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 388 KB)

Heat Recovery Steam Generators, June 15-16, 2009, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 840 KB)

Multiple Burner Boilers, December 16, 2008, Conference Call (PDF, 38 KB)

Multiple Burner Boilers, June 17-19, 2009, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 1 MB)

Pulverized Fuel Systems, June 25, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA (PDF, 382 KB)

Single Burner Boilers, June 24, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA 671-770-3000 (PDF, 257 KB)

Stoker Operations, July 13, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 193 KB)

ROP Meeting Minutes

Technical Correlating Committee, September 15-16, 2009, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 27 KB)

Fluidized Bed Boilers, July 14, 2009, Web Conference Meeting, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 23 KB)

Fundamentals of Combustion System Hazards, July 15-16, 2008, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 35 KB)

Fundamentals of Combustion System Hazards, May 27-28, 2009, Residence Inn Marriott, Atlanta, GA 404-745-1000 (PDF, 25 KB)

Heat Recovery Steam Generators, July 16-17, 2008, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 50 KB)

Heat Recovery Steam Generators, September 19-20, 2007, Orlando, FL, Siemens Power Generation (PDF, 69 KB)

Heat Recovery Steam Generators, June 15-16, 2009, NFPA Headquarters, Quincy, MA, 617-770-3000 (PDF, 24 KB)

Multiple Burner Boilers, June 17-19, 2009, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 53 KB)

Multiple Burner Boilers, December 16, 2008, Conference Call (PDF, 15 KB)

Pulverized Fuel Systems, June 25, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA (PDF, 23 KB)

Single Burner Boilers, June 24, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 23 KB)

Stoker Operations, July 13, 2009, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 22 KB)

ROP Ballot

The ballots posted on this page are for public information only. Voting on ballots is permitted by committee members only. See NFPA Regulations Governing Committee Projects, Section 3.3.4.

Ballot Final, Technical Correlating Committee (PDF, 9 KB)

Ballot, Fluidized Bed Boilers (PDF, 219 KB)

Ballot Final, Fluidized Bed Boilers (PDF, 28 KB)

Ballot, Fundamentals of Combustion System Hazards (PDF, 676 KB)

Ballot Final, Fundamentals of Combustion System Hazards (PDF, 21 KB)

Ballot, Heat Recovery Steam Generators (PDF, 414 KB)

Ballot Final, Heat Recovery Steam Generators (PDF, 20 KB)

Ballot, Multiple Burner Boilers (PDF, 660 KB)

Ballot Final, Multiple Burner Boilers (PDF, 26 KB)

Ballot, Pulverized Fuel Systems (PDF, 249 KB)

Ballot Final, Pulverized Fuel Systems (PDF, 24 KB)

Ballot, Single Burner Boilers (PDF, 180 KB)

Ballot Final, Single Burner Boilers (PDF, 28 KB)

Ballot, Stoker Operations (PDF, 149 KB)

Ballot Final, Stoker Operations (PDF, 28 KB)

Report on Comments (ROC)

Once the ROP becomes available, there is a 60-day comment period during which time anyone may submit a public comment on the proposed changes documented in the ROP. The committee or panel reconvenes at the end of the comment period and acts on all public comments. This committee or panel may also develop its own comments. As before, approval obtained via written ballot in accordance with NFPA's Regulations is required on all committee and panel actions. All of this information is compiled into a second Report, called the Report on Comments (ROC), which like the ROP, is published and made available for public review for a seven-week period.

Report on Comments (ROC) (PDF, 774 KB)

ROC Meeting Notice

Technical Correlating Committee, June 2-3, 2010, Babcock & Wilcox, Barberton, OH, 330-860-2628 (PDF, 39 KB)

Fluidized Bed Boilers, April 5, 2010, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 36 KB)

Fundamentals of Combustion System Hazards, March 18-19, 2010, Tampa Electric Company, Tampa, FL (PDF, 62 KB)

Heat Recovery Steam Generators, March 25-26, 2010, Orlando, Fl, Doubletree Hotel, 800-327-0363 (PDF, 62 KB)

Multiple Burner Boilers, March 30-31, 2010, SRP Pera Club, Tempe, AZ (PDF, 62 KB)

Pulverized Fuel Systems, April 2, 2010, Teleconference/Live Meeting, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 30 KB)

Single Burner Boilers, April 6, 2010, Teleconference/Live Meeting, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 35 KB)

Stoker Operations, April 2, 2010, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 36 KB)

ROC Meeting Agenda

Technical Correlating Committee, June 2-3, 2010, Barberton, OH (PDF, 604 KB)

Fluidized Bed Boilers, April 5, 2010, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 485 KB)

Fundamentals of Combustion System Hazards, March 18-19, 2010, Tampa Electric Company, Tampa, FL (PDF, 500 KB)

Heat Recovery Steam Generators, March 25-26, 2010, Orlando, FL, Doubletree Hotel, 800-327-0363 (PDF, 2 MB)

Multiple Burner Boilers, March 30-31, 2010, SRP Pera Club, Tempe, AZ (PDF, 387 KB)

Pulverized Fuel Systems, April 2, 2010, Teleconference/Live Meeting, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 302 KB)

Single Burner Boilers, April 6, 2010, Teleconference/Live Meeting, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 508 KB)

Stoker Operations, April 2, 2010, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 484 KB)

ROC Meeting Minutes

Technical Correlating Committee, June 2-3, 2010, Barberton, OH (PDF, 28 KB)

Fluidized Bed Boilers, April 5, 2010, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 136 KB)

Fundamentals of Combustion System Hazards, March 18-19, 2010, Tampa Electric Company, Tampa, FL (PDF, 65 KB)

Heat Recovery Steam Generators, March 25-26, 2010, Orlando, Fl, Doubletree Hotel (PDF, 22 KB)

Multiple Burner Boilers, March 30-31, 2010, SRP Pera Club, Tempe, AZ (PDF, 49 KB)

Pulverized Fuel Systems, April 2, 2010, Teleconference/Live Meeting, NFPA Headquarters, Quincy, MA (PDF, 20 KB)

Single Burner Boilers, April 6, 2010, Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 40 KB)

Stoker Operations, April 2, 2010, Web Teleconference, NFPA Headquarters, Quincy, MA 617-770-3000 (PDF, 27 KB)

ROC Ballot

The ballots posted on this page are for public information only. Voting on ballots is permitted by committee members only. See NFPA Regulations Governing Committee Projects, Section 3.3.4.

Ballot, Technical Correlating Committee (PDF, 384 KB)

Ballot Final, Technical Correlating Committee (PDF, 11 KB)

Ballot, Fluidized Bed Boilers (PDF, 144 KB)

Ballot Final, Fluidized Bed Boilers (PDF, 20 KB)

Ballot, Fundamentals of Combustion System Hazards (PDF, 345 KB)

Ballot Final, Fundamentals of Combustion System Hazards (PDF, 12 KB)

Ballot, Heat Recovery Steam Generators (PDF, 228 KB)

Ballot Final, Heat Recovery Steam Generators (PDF, 10 KB)

Ballot, Multiple Burner Boilers (PDF, 291 KB)

Ballot Final, Multiple Burner Boilers (PDF, 21 KB)

Ballot, Pulverized Fuel Systems (PDF, 268 KB)

Ballot Final, Pulverized Fuel Systems (PDF, 24 KB)

Ballot, Single Burner Boilers (PDF, 209 KB)

Ballot Final, Single Burner Boilers (PDF, 20 KB)

Motions Committee Report (NITMAM)

Proposed NFPA documents will be presented for action at the applicable Annual (June) Association Technical Meeting only when proper Amending Motions (Notice of Intent to Make a Motion - NITMAM) have been certified by the Motions Committee of the Standards Council as a proper amending motion. Documents that receive no motions will not be presented at the meeting and instead will be forwarded directly to the NFPA Standards Council for action on issuance. More about the codes and standards making process including NITMAM.

No NITMAMs

Association Technical Meeting

Consent document not presented at Association Technical Meeting. Document issuance: 12/14/2010

Errata

Errata are corrections issued to an NFPA document, published in NFPA News, the National Fire Codes Subscription Service (NFCSS), and included in any further distribution of the document.

For previously issued Erratas (not listed below), e-mail the NFPA Library, call +1 617 984-7445, or fax +1 617 984-7060.

Errata 11-1 (issued 4/29/2011) (PDF, 45 KB)

View the document online (read only)

View the 2011 edition online