NFPA 86: Standard for Ovens and Furnaces
Current Edition: 2011 Next Edition: 2015

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NFPA 86:
2011 Edition
Item #: 8611
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What is NFPA 86?
NFPA 86: Document Scope
1.1* Scope. 1.1.1 This standard applies to Class A, Class B, Class C, and Class D ovens, dryers, and furnaces, thermal oxidizers, and any other heated enclosure used for processing of materials and related equipment. 1.1.1.1 The terms ovens, dryers, and furnaces are used interchangeably and also apply to other heated enclosures used for processing of materials. 1.1.2* Within the scope of this standard, a Class A, Class B, or Class C oven is any heated enclosure operating at approximately atmospheric pressure and used for commercial and industrial processing of materials. 1.1.3 A Class A oven can utilize a low-oxygen atmosphere. 1.1.4 This standard applies to bakery ovens and Class A ovens, in all respects, and where reference is made to ANSI Z50.1, Bakery Equipment — Safety Requirements, those requirements shall apply to bakery oven construction and safety. 1.1.5 This standard applies to atmosphere generators and atmosphere supply systems serving Class C furnaces and to furnaces with integral quench tanks or molten salt baths. 1.1.6* This standard applies to Class D ovens and furnaces operating above ambient temperatures to over 5000°F (2760°C) and at pressures normally below atmospheric to 108 torr (1.33 × 106 Pa). 1.1.7 This standard does not apply to the following: (1) Coal or other solid fuel-firing systems (2) Listed equipment with a heating system(s) that supplies a total input not exceeding 150,000 Btu/hr (44 kW)
NFPA 86 minimizes fire and explosion hazards of ovens and furnaces used for commercial and industrial processing of materials. Official document scope
What does NFPA 86 address?
Requirements address the safe design; installation; operation; and inspection, testing, and maintenance of Class A, B, C, and D ovens, dryers, and furnaces, thermal oxidizers, and any other heated enclosure used for processing of materials and related equipment. Provisions are also provided for furnace heating systems, safety equipment and application, and fire protection.Table Of Contents.
NFPA 86, 2011 Edition: Archived Revision Information
Report on Proposals (ROP)
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 Comments (ROC)
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, 956 KB)
Motions Committee Report (NITMAM)
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.
Association Technical Meeting
Transcript (PDF, 730 KB)
Final Results (PDF, 72 KB)
Standards Council Decisions
Archived revision information
NFPA 86, 2011 Edition: Archived Revision Information
View archived proposals, comments and other records related to the development of this edition.
Read the archived revision information
Tentative Interim Amendment (TIA)
Tentative Interim Amendment (TIA)
Tentative Interim Amendments (TIAs) are amendments to an NFPA document processed in accordance with Section 5 of the Regulations Governing Committee Projects. They have not gone through the entire codes and standards-making process of being published in a ROP and ROC for review and comment. TIAs are effective only between editions of the Document. A TIA automatically becomes a proposal of the proponent for the next edition of the Document, as such is then subject to all of the procedures of the codes and standards making process. TIAs are published in NFPA News , NFCSS, and any further distribution of the document after being issued by the Standards Council.

Requests for TIAs shall be clearly worded to provide the recommended revision and the reason as to why it is of an emergency nature requiring prompt action. Submissions shall be in writing, addressed to the Standards Council Secretary, NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471. The submitter must also provide the appropriate endorsments in writing of two members of the applicable technical committee or technical correlating committee. For further information on submitting a TIA, please contact Codes and Standards Administration.

TIA 11-1 (issued 8/5/2010) (PDF, 18 KB)
TIA 11-2 (issued 8/5/2010) (PDF, 20 KB)
TIA 11-3 (issued 3/1/2011) (PDF, 25 KB)
TIA 11-4 (issued 3/1/2011) (PDF, 30 KB)
Errata
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 86-11-1, Reference: A.6.2.5.3 (issued 2/13/2014) (PDF, 25 KB)
Formal Interpretations (FIs)
Formal Interpretations (FIs)
Formal Interpretations (FIs) provide formal explanations of the meaning or intent of any specific provision or provisions of any document in accordance with Section 6 of the Regulations Governing Committee Projects.

Download a Formal Interpretation request form (doc, 58 KB).

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

Formal Interpretations (PDF, 39 KB)
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