technical committee on wastewater treatment plants (waa-aaa)€¦ · technical committee on...

Technical Committee on Wastewater Treatment Plants

(WAA-AAA)

M E M O R A N D U M

DATE: October 2, 2017

TO: Principal and Alternate Members of the Technical Committee on Wastewater

Treatment Plants

FROM: Susan Bershad, Staff Liaison

SUBJECT: AGENDA PACKAGE – NFPA 820 First Draft Meeting (A2019)

________________________________________________________________________

Enclosed is the agenda for the NFPA 820 First Draft meeting of the Technical Committee on

Wastewater Treatment Plants, which will be held on Monday, October 16th through Wednesday,

October 18th, 2017 in Independence, OH.

Please review the attached Public Inputs in advance, and if you have alternate suggestions, please

come prepared with proposed language and respective substantiation.

If you have any questions prior to the meeting, please do not hesitate to contact me at:

Office: (617) 984-7410

Email: [email protected]

For administrative questions, please contact Yvonne Smith at (617) 984-7489.

I look forward to working with everyone.


(WAA-AAA) NFPA 820 First Draft Meeting (Annual 2019)

Monday, October 16 to Wednesday, October 18, 2017

Embassy Suites by Hilton Cleveland Rockside

5800 Rockside Woods Boulevard

Independence, OH 44131

AGENDA

Monday, October 16, 2017

1. Call to Order – 8:00 am EDT (10/16)

2. Introductions and Attendance

3. Chairman Comments

4. Approval of Previous Meeting Minutes (Attached)

5. Staff Liaison Presentation on NFPA Revision Process and A2019 Cycle

6. Preparation of the First Draft

Review Public Inputs (attached)

Create First Revisions

7. Task Group Work

8. New Business

Next Meeting

9. Adjournment

Please submit requests for additional agenda items to the chair and staff liaison at least

seven days prior to the meeting.


(WAA-AAA) NFPA 820 First Draft Meeting (Annual 2019)

Monday, October 16 to Wednesday, October 18, 2017

Embassy Suites by Hilton Cleveland Rockside

5800 Rockside Woods Boulevard

Independence, OH 44131

Key Dates for the Annual 2019 Revision Cycle

Public Input Closing Date June 28, 2017

Final Date for First Draft Meeting December 6, 2017

Posting of Ballot by January 24, 2018

First Draft Ballot Due Date February 14, 2018

Posting of First Draft Report for Public Comment February 28, 2018

Public Comment Closing Date May 9, 2018

Final Date for Second Draft Meeting November 7, 2018

Posting of Ballot by December 19, 2018

Ballots due by January 9, 2019

Posting of Second Draft Report for NITMAM Review January 23, 2019

Closing Date for Notice of Intent to Make a Motion

(NITMAM) February 20, 2019

Issuance of Consent Document (No NITMAMs) April 28, 2019

NFPA Annual Meeting TBA

Issuance of Document with NITMAM TBA

Technical Committee deadlines are in bold.

Address List No PhoneWastewater Treatment Plants WAA-AAA

Lisa Hartman10/02/2017

WAA-AAA

Glenn E. McGinley, II

ChairOhio Public Employment Risk Reduction Program4448 Prairie Creek LaneMaumee, OH 43537-9020

E 1/16/2003WAA-AAA

Josef Berktold

PrincipalDonohue Associates3311 Weeden Creek RoadSheboygan, WI 53081Water Environment Federation

U 08/09/2012

WAA-AAA

John G. Brosnan

PrincipalCH2M HILL7075 Maynard Place ENew Albany, OH 43054Alternate: Sam Rizzi

SE 08/09/2012WAA-AAA

Marty Cole

PrincipalHubbell Canada LP870 Brock Road SouthPickering, ON L1W 1Z8 Canada

M 08/17/2015

WAA-AAA

Bradley A. Cyrus

PrincipalThe Gorman-Rupp CompanyPO Box 1217Mansfield, OH 44901Water & Wastewater Equipment Manufacturers Assn., Inc.

M 1/10/2008WAA-AAA

Claudio C. Groppetti

PrincipalHoneywell/Xtralis, Inc.2445 Heron LaneVictoria, MN 55386-4558

M 10/18/2011

WAA-AAA

Leigh Ann Grosvenor

PrincipalCity of DeltonaBuilding & Enforcement Services2345 Providence BoulevardDeltona, FL 32725-1806

E 03/03/2014WAA-AAA

John N. Harrell

PrincipalWilson & Company, Inc.800 East 101st Terrace, Suite 200Kansas City, MO 64131

SE 1/1/1987

WAA-AAA

Clark A. Henry

PrincipalEnvironment One Corporation2773 Balltown RoadNiskayuna, NY 12309

M 10/4/2007WAA-AAA

Linda Leong

PrincipalSan Francisco Public Utilities Commission750 Phelps StreetSan Francisco, CA 94124Alternate: Jeff Leano

U 3/21/2006

WAA-AAA

Christine Minor

PrincipalCity of Toledo, Division of Water ReclamationDepartment of Public Utilities420 Madison AvenueToledo, OH 43604

U 10/4/2007WAA-AAA

Christopher Lee Motyl

PrincipalNYS Department Of HealthCorning Tower, Room 1861Empire State PlazaAlbany, NY 12237

E 11/30/2016

WAA-AAA

Diep T. Nguyen

PrincipalDTN Engineers, Inc.1611 Telegraph Avenue, Suite 809Oakland, CA 94612Alternate: John R. Puskar


Dennis Michael Querry

PrincipalTrinity River Authority4701 Lake Park DriveArlington, TX 76016-5362Independent Electrical Contractors, Inc.

U 08/17/2015

1

Address List No PhoneWastewater Treatment Plants WAA-AAA

Lisa Hartman10/02/2017

WAA-AAA

Gerald P. Robinson

PrincipalHatch Mott MacDonald11233 Shadow Creek ParkwaySuite 400Pearland, TX 77584-7367Alternate: Scott R. Connor


William J. Ryan, Jr.

PrincipalCamp, Dresser & McKee Inc.50 Hampshire StreetOne Cambridge PlaceCambridge, MA 02139

SE 11/30/2016

WAA-AAA

Karl Wiegand

PrincipalGlobe Fire Sprinkler Corporation4077 Air Park DriveStandish, MI 48658-9447National Fire Sprinkler AssociationAlternate: James Lewis

M 08/11/2014WAA-AAA

Scott R. Connor

AlternateTeam-1 Academy Inc.760 Pacific Road, Unit 19Oakville, ON L6L 6M5 CanadaPrincipal: Gerald P. Robinson

SE 03/07/2013

WAA-AAA

Jeff Leano

AlternateCity And County of San Francisco1325a Evans AvenueSan Francisco, CA 94124Principal: Linda Leong

U 08/09/2012WAA-AAA

James Lewis

AlternateAmerican Fire Sprinkler Corporation6750 West 47th TerraceShawnee, KS 66203-1392National Fire Sprinkler AssociationPrincipal: Karl Wiegand

M 08/11/2014

WAA-AAA

John R. Puskar

AlternatePuskarCo9744 Elsmere DriveParma, OH 44130-1627Principal: Diep T. Nguyen


Sam Rizzi

AlternateHILL

1103 Schrock RoadColumbus, OH 43229Principal: John G. Brosnan

SE 03/07/2013

WAA-AAA

James F. Wheeler

Member Emeritus4537 Peacock AvenueWashington, DC 20460


Lisa Hartman

Staff LiaisonNational Fire Protection AssociationOne Batterymarch ParkQuincy, MA 02169

9/15/2017

2

TECHNICAL COMMITTEE ON WASTEWATER TREATMENT PLANTS

Second Draft Meeting Minutes October 7, 2014--10 AM-6 PM EDT

October 14, 2014--2-4 PM EDT Adobe Connect Conference Call Meetings

Attendees:

Glenn McGinley, Chair, State of Ohio PERRP

Josef Berktold, WEF

John Brosnan, CH2M Hill

Bradley Cyrus, Gormann-Rupp, OH

Leigh Grosvenor, City of Deltona Bldg. Enforcement, FL

John Harrell, Wilson &Co, MO

Clark Henry, Environment One, NY

Garr Jones, Brown and Caldwell

Jeff Leano, City and County San Francisco, CA

Linda Leong, San Francisco Public Utilities Commission

Christine Minor, City of Toledo Reclamation, OH

Diep Nguyen, DTN Engineers, Inc.*

John Puskar, Puskar Co, OH

Gerald Robinson, Hatch Mott MacDonald

Karl Wiegand, Globe Fire Sprinkler Corp, MI

James Wheeler, USEPA*

Nancy Pearce, NFPA Staff

Guests:

Dan Olah,

Dan Gorham, NFPA Staff

1). The meeting was brought to order at 10:10 AM on October 7th. The Committee

Chair, Glenn McGinley welcomed the Committee and reviewed the agenda.

2). Committee members introduced themselves and their affiliation. New members

were welcomed to the Committee.

3). The minutes of the First Draft Meeting (September 10-12, 2013) were reviewed, motions

made and a vote taken to approve the minutes as written.

4). Staff updates-The Committee was asked to review the Committee roster

and provide any changes and updates to Nancy via email. The revision

schedule for NFPA 820 was reviewed with important dates highlighted for the Committee.

A powerpoint on the new process was presented to the Committee that focused on the

motions allowed for reviewing comments and for creating second revisions.

5). The five public comments were reviewed with two Second Revisions created, one rejected,

one rejected but held and one rejected and referred to a Second Revision.

6). Additional Second Revisions were created based on the two Task Groups

recommendations.

a) NFPA 72 Signaling/Alarms Task Group. There was extensive discussion about revising

Chapter 7 so as not to conflict with NFPA 72 requirements. The task group presented

a draft that the full Committee reviewed and revised. Second Revisions were created

on Chapter 7.

b) Construction Requirements in NFPA 820 Task Group. There was extensive discussion

about revising Chapter 8 to clarify where building codes apply versus where the

specific construction requirements in NFPA 820 apply. The task group presented a

draft that the full Committee reviewed and revised. Second Revisions were created on

Chapter 8.

7). Additional Business/Issues for Consideration. The Committee expressed a concern that

most document users only refer to the tables in in Chapters 4-6 and never make it to the

other chapters. The Committee made revisions to the introductory sections of Chapters

4-6 and revised the footnotes to point table users to the correct Chapters for Ventilation

and Construction in NFPA 820.

8) Next Steps. A number of Task Groups will be formed for the next revision cycle and the

next meeting will be scheduled as the date gets closer. NFPA 820 is currently on a 4 year

revision cycle which means that it will be in an Annual 2019 cycle. This means the

document will receive public input up to ~ July of 2017 with the First draft meeting being

held sometime between July and December of 2017. The Chair will establish task groups

as needed. Several potential task groups were proposed to do the following:

1) Review Construction Requirements in Chapter 8 to include:

a. Review 8.3.1.1 100ft2 exemption for building materials

b. Review the Types of Buildings and Construction Types (NFPA 5000)

c.

2) Review requirements for Combustible Gas Detectors in the document (Are VOC

detectors needed for gasoline, review tables to determine when CGDs should be

required)

3) Review entire Chapter 7 ventilation requirements

4) Review requirements for Dryers, Biosolids (Garr Jones)

The Committee Chair will further define and establish task groups prior to the next revision cycle.

9). The meeting was adjourned at 5:15 PM on October 14, 2014.

Annual 2019 Revision Cycle

Process Stage Process Step Dates for TCDates for TC

with CC

Public InputStage (First Draft)

Public Input Closing Date* 6/28/2017 6/28/2017

Final Date for TC First Draft Meeting 12/06/2017 9/06/2017

Posting of First Draft and TC Ballot 1/24/2018 10/18/2017

Final date for Receipt of TC First Draft ballot 2/14/2018 11/08/2017

Final date for Receipt of TC First Draft ballot - recirc 2/21/2018 11/15/2017

Posting of First Draft for CC Meeting 11/22/2017

Final date for CC First Draft Meeting 1/03/2018

Posting of First Draft and CC Ballot 1/24/2018

Final date for Receipt of CC First Draft ballot 2/14/2018

Final date for Receipt of CC First Draft ballot - recirc 2/21/2018

Post First Draft Report for Public Comment 2/28/2018 2/28/2018

Comment Stage(Second Draft)

Public Comment Closing Date* 5/09/2018 5/09/2018

Notice Published on Consent Standards (Standards that received no Comments)Note: Date varies and determined via TC ballot.

Appeal Closing Date for Consent Standards (Standards that received no Comments)

Final date for TC Second Draft Meeting 11/07/2018 8/01/2018

Posting of Second Draft and TC Ballot 12/19/2018 9/12/2018

Final date for Receipt of TC Second Draft ballot 1/09/2019 10/03/2018

Final date for receipt of TC Second Draft ballot - recirc 1/16/2019 10/10/2018

Posting of Second Draft for CC Meeting 10/17/2018

Final date for CC Second Draft Meeting 11/28/2018

Posting of Second Draft for CC Ballot 12/19/2018

Final date for Receipt of CC Second Draft ballot 1/09/2019

Final date for Receipt of CC Second Draft ballot - recirc 1/16/2019

Post Second Draft Report for NITMAM Review 1/23/2019 1/23/2019

Tech SessionPreparation (&

Issuance)

Notice of Intent to Make a Motion (NITMAM) Closing Date 2/20/2019 2/20/2019

Posting of Certified Amending Motions (CAMs) and Consent Standards 4/03/2019 4/03/2019

Appeal Closing Date for Consent Standards 4/18/2019 4/18/2019

SC Issuance Date for Consent Standards 4/28/2019 4/28/2019

Tech Session Association Meeting for Standards with CAMs 6/20/2019 6/20/2019

Appeals andIssuance

Appeal Closing Date for Standards with CAMs 7/10/2019 7/10/2019

SC Issuance Date for Standards with CAMs 8/07/2019 8/07/2019

TC = Technical Committee or PanelCC = Correlating Committee

As of 4/12/2017

™

NFPA http://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of...

1 of 1 10/2/2017, 1:37 PM

Public Input No. 23-NFPA 820-2017 [ Chapter 1 [Title Only] ]

Administration

WEF re-dfined Waste Water Treatment Pant (WWTP) to Wate Reource Recovery Faciity(WRRF) in 2013( http://news.wef.org/changing-the-terms/ )

Statement of Problem and Substantiation for Public Input

Aligning terms with industry standards

Submitter Information Verification

Submitter Full Name: Ruben Sidranski

Organization: Brown and Caldwell

Street Address:

City:

State:

Zip:

Submittal Date: Fri Mar 24 10:08:31 EDT 2017

National Fire Protection Association Report http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...

1 of 71 10/2/2017, 1:18 PM

Public Input No. 4-NFPA 820-2016 [ Section No. 1.1.3 ]

1.1.3

This standard shall not apply to the following:

(1) Collection, treatment, or disposal of industrial wastes or manufactured by-products that are treated on-site and not discharged to a publicly or privately operated municipal facility

(2) On-site treatment systems (see 3.3.55.1)

(3) Pressure sewer systems (see 3.3.48.7)

(4) Building drain systems and appurtenances (see 3.3.5)

(5) Industrial sewer systems and appurtenances (see 3.3.48.5)

(6) Personnel safety from toxic and hazardous materials or products of combustion

(7) Separate nonprocess-related structures (see 3.3.54.2)


The term "municipal" implies that the facility is a owned by a municipality or is operated only within the confines of a municipality. Wastewater treatment facility service areas are not typically tied to a single municipal boundary nor operated only by municipalities. County, multicounty, regional and multi-municipal service areas are not uncommon.


Submitter Full Name: Anthony Apfelbeck

Organization: Altamonte Springs Building/Fire Safety Division

Street Address:

City:

State:

Zip:

Submittal Date: Mon Aug 29 08:59:44 EDT 2016


2 of 71 10/2/2017, 1:18 PM

Public Input No. 25-NFPA 820-2017 [ Section No. 1.3.1 [Excluding any Sub-Sections] ]

The requirements of this standard shall apply to new installations.

Proposed new text - Installation. The requirements of this standard shall apply to new and modifiedinstallations.


The current wording implies that the document applies to new installations or only the modifications to existing installations. This would clarify that the document applies to both new and modified installations.


Submitter Full Name: Dennis Querry

Organization: Trinity River Authority

Street Address:

City:

State:

Zip:

Submittal Date: Mon Apr 03 19:09:28 EDT 2017


3 of 71 10/2/2017, 1:18 PM

Public Input No. 24-NFPA 820-2017 [ Section No. 1.3.1.1 ]

1.3.1.1

When additions or modifications are made to existing facilities, the modifications shall reflect therequirements of this document.

Suggested revised text - 1.3.1.1 When additions or modfications are made to existing facilities, themodifications and the area(s) affected by the modfications shall reflect the requirements of this document.


The way that 1.3.1.1 is currently written it would only apply to the modification in an existing installation. If the modification affects an entire area the entire area would need to be upgraded to meet the requirements of NFPA 820




Street Address:

City:

State:

Zip:



4 of 71 10/2/2017, 1:18 PM

Public Input No. 10-NFPA 820-2016 [ New Section after 1.3.1.2 ]

Insert a new 1.3.2 and renumber the remaining.

1.3.2 In addition to complying with the provisisions of this standard, new buildings and structures shallcomply with the applicable requirements of the jurisdiction's adopted building code and fire preventioncode.


In addition to complying with the provisions of this standard, it is important to point out that new facilities must also comply with the provisions of the local jurisdiction's adopted building and fire codes.




Street Address:

City:

State:

Zip:

Submittal Date: Tue Aug 30 11:08:39 EDT 2016


5 of 71 10/2/2017, 1:18 PM


1.3.1.2

In any event, the requirements of this standard shall be used by owners in a risk assessment to identify theareas of a treatment plant that are vulnerable to fire or other loss.

Proposed new text - The requirements of this standard shall be used in a risk assesment of the areasidentified in paragraph 1.1.2 that are vulnerable to fire or other loss.


1) Clarification that not just the owner that could be performing the risk assessment.2) Clarification that to align with subsection 1.1.2




Street Address:

City:

State:

Zip:



6 of 71 10/2/2017, 1:18 PM


1.3.1.2

In any event, the requirements of this standard shall be used by owners in a risk assessment to identify theareas of a treatment plant that are vulnerable to fire or other loss.

Propose new subsection - (?) The requirements of this standard shall be used in a risk assessment of theareas identified in paragraph 1.1.2 that are vulnerable to fire or other loss


Currently the paragraph is under paragraph 1.3.1 moving this to a new subsection would place the paragraph under paragraph 1.3 Application.




Street Address:

City:

State:

Zip:



7 of 71 10/2/2017, 1:18 PM


1.3.2.2

This standard shall not apply to toxicity and biological hazards.

A.1.3.2.2. CAUTION: It is recognized that, from a personnel safety standpoint, toxicity and biologicalhazards can be present in life-threatening concentrations while no threat of fire or explosion exists.


The "Caution" text is more appropriate as annex text. In the current location is it not standard/code language but is informational. Therefore, it should be in the annex.




Street Address:

City:

State:

Zip:



8 of 71 10/2/2017, 1:18 PM


1.3.3 Fire Risk Evaluation.

A fire risk evaluation shall be initiated early in the facility design or alteration to integrate the fire preventionand fire protection requirements described in this document.

Proposed new text -A fire risk evaluation shall be initiated and documented early in the facility design oralteration to integrate the fire prevention and fire protection requirements described in this document


This would emphasize the documentation of the fire risk evaluation




Street Address:

City:

State:

Zip:



9 of 71 10/2/2017, 1:18 PM


1.3.5 Materials Selection.

When conditions or applications warrant the selection of combustible, limited-combustible, or low flamespread index materials, the fire risk evaluation shall include evaluation of flame spread, smoke generation,and the impact that a fire or explosion will have on the structural integrity of the facility.

A.1.3.5 CAUTION: Because many of the corrosion-resistant materials and coatings are combustible orlimited-combustible and could represent a considerable fuel load during fire events, the design and fire riskevaluation shall consider any additional hazards imposed by the use of these materials.


The "Caution" text is more appropriate as annex text. In the current location is it not standard/code language but is informational. Therefore, it should be in the annex.




Street Address:

City:

State:

Zip:



10 of 71 10/2/2017, 1:18 PM


1.4.1

Unless otherwise specified, the provisions of this standard shall not apply to facilities, equipment,structures, or installations that existed or were approved for construction or installation prior to the effectivedate of the standard. Where specified, the provisions of this standard shall be retroactive.

Poposed new text - Unless otherwise specified, the provisions of this standard shall not apply to facilities,equipment, structures, or installations that existed and were approved for construction or installation priorto the effective date of the standard. Where specified, the provisions of this standard shall be retroactive


The current text would grandfather in an installation that was not approved when put into operation




Street Address:

City:

State:

Zip:



11 of 71 10/2/2017, 1:18 PM


1.5.2

The system, method, or device shall be approved for the intended purpose by the authority havingjurisdiction.

Proposed new text - The system, method, or device shall be approved for the intended purpose by theauthority having jurisdiction provided a basis for approval was made generally available throughpromulgation by organizations properly equipped and qualfied for experiental testing, inspection of the runof goods at factories and service-value determination through field inspections


Clarifies that the authority having jurisdiction cannot arbitrarily accept products without justification




Street Address:

City:

State:

Zip:



12 of 71 10/2/2017, 1:18 PM


1.8.2

Once an area is classified, NFPA 70 shall be used to specify the types of equipment and the wiringmethods that are required.

Proposed new text - Once an area is classified, NFPA70 shall be used to specify the types of equipmentand installation requirements.


The proposed text would clarify that once an area is classified that NFPA 70 would be used for all installation requirements and not just the wiring methods




Street Address:

City:

State:

Zip:



13 of 71 10/2/2017, 1:18 PM


2.3.1 ASTM Publications.

ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.

ASTM E84, Standard Test Method for Surface Burning Characteristics of Building Materials,2014 2017 .

ASTM E136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750°C,20122016a .

ASTM E2652, Standard Test Method for Behavior of Materials in a Tube Furnace with a Cone-shapedAirflow Stabilizer, at 750°C,2012 2016 .

ASTM E2965, Standard Test Method for Determination of Low Levels of Heat Release Rate for Materialsand Products Using an Oxygen Consumption Calorimeter, 2017.

IEEE/ASTM SI 10, Use of the International System of Units (SI): the Modern Metric System, 2010.


date updates - ASTM E2965 is being added because of the update of the extract from NFPA 5000 regarding limited combustible materials.

Related Public Inputs for This Document

Related Input Relationship

Public Input No. 49-NFPA 820-2017 [Section No. 8.2.3.3]


Submitter Full Name: Marcelo Hirschler

Organization: GBH International

Street Address:

City:

State:

Zip:

Submittal Date: Sun Jun 25 19:08:18 EDT 2017


14 of 71 10/2/2017, 1:18 PM


2.3.2 UL Publications.

Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 60062–2096.

ANSI/UL 723, Standard Test for Surface Burning Characteristics of Building Materials, 2008, Revised2010 2013 .


Up Date Standards



Public Input No. 46-NFPA 820-2017 [Section No. E.1.2.8]


Submitter Full Name: Kelly Nicolello

Organization: UL LLC

Street Address:

City:

State:

Zip:

Submittal Date: Thu Jun 22 15:37:54 EDT 2017


15 of 71 10/2/2017, 1:18 PM

Public Input No. 1-NFPA 820-2016 [ New Section after 3.3.30 ]

3.3.29 Hazardous (Classified) Location

As defined in NFPA-70, Chapter 5, Article 500. A location that is classified based on the properties of theflammable vapors, liquids, or gases, or combustible dusts or fibers that might be present and the likelihoodthat a flammable or combustible concentraion or quantity is present.

Additional Proposed Changes

File Name Description Approved

820-PC4.pdf 820-PC4


Note: This Public Input appeared as "Rejected but Held" in Public Comment No. 4 of the A2015 Second Draft Report for NFPA 820 and per the Regs. at 4.4.8.3.1.

Specifies that the areas are "Hazardous" as defined by NFPA-70, and not some other arbitrary definition.


Submitter Full Name: TC on WAA-AAA

Organization: NFPA

Affilliation: Technical Committee on Wastewater Treatment Plants

Street Address:

City:

State:

Zip:

Submittal Date: Wed Apr 06 14:58:36 EDT 2016


16 of 71 10/2/2017, 1:18 PM

Public Comment No. 4-NFPA 820-2014 [ Section No. 3.3.29 ]

3.3.29 Hazardous (Classified) Location.

As defined in NFPA-70, Chapter 5, Article 500. A location that is classified based on the propertiesof the flammable vapors, liquids, or gases, or combustible dusts or fibers that might be present andthe likelihood that a flammable or combustible concentration or quantity is present.

Statement of Problem and Substantiation for Public Comment

Specifies that the areas are 'Hazardous' as defined by NFPA-70, and not some other arbitrary definition.

Related Item

First Revision No. 3-NFPA 820-2013 [Section No. 3.3]


Submitter Full Name: Charles Olah

Organization: EMA Canada (formerly)

Street Address:

City:

State:

Zip:

Submittal Date: Sun May 11 03:27:14 EDT 2014

Committee Statement

CommitteeAction:

Rejected but held

Resolution: The committee is holding this comment until the next revision cycle to consider furtherdefining the terms Class I Division I etc. within NFPA 820 in accordance with NFPA 70. Thisis done in other NFPA documents such as NFPA 33. There is currently no general definitionof a hazardous (classified) location in NFPA 70.

Copyright Assignment

I, Charles Olah, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights incopyright in this Public Comment (including both the Proposed Change and the Statement of Problem and Substantiation). Iunderstand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which thisPublic Comment in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Commentand that I have full power and authority to enter into this copyright assignment.

By checking this box I affirm that I am Charles Olah, and I agree to be legally bound by the above Copyright Assignment andthe terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronicsignature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature

National Fire Protection Association Report http://submittalsarchive.nfpa.org/TerraViewWeb/FormLaunch?id=/Terra...

1 of 1 4/6/2016 2:48 PM


3.3.43 * Physically Separated.

A gastight partition between two adjacent spaces, or two nonadjacent spaces, with no means of gascommunication between the spaces.

Add the definition from the Appendix A.3.3.43 to this definition and delete from the appendix as it wouldnot be needed anymore.


Adding the proposed to the definition would clear up the definition of physically separated as some persons may want to use air locks, etc. which would not be allowed with the addition of the definition form the appendix.


Submitter Full Name: John Brosnan

Organization: CH2M HILL

Street Address:

City:

State:

Zip:

Submittal Date: Mon Jun 26 21:58:21 EDT 2017


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6.2.2


19 of 71 10/2/2017, 1:18 PM

The design and construction of solids treatment processes associated with wastewater solids treatmentshall conform to Table 6.2.2(a) and Table 6.2.2(b).

Table 6.2.2(a) Solids Treatment Processes

Rowa Linea Location andFunction

Fire andExplosion

HazardVentilationb,c,d

Extent ofClassified

Area

NEC AreaElectrical

Classification(All Class I,

Group D)d

Mater

Constr

1 COARSE ANDFINESCREENINGS-

HANDLINGBUILDINGS

Storage,conveying, ordewatering ofscreenings (noexposed flow ofwastewaterthrough building orarea)

N/A NR N/A Unclass

2 GRIT-HANDLINGBUILDING

Storage,conveying, anddewatering ofheavy smallscreenings andgrit (no exposedflow of wastewaterthrough building orarea)

N/A NR N/A Unclass

3 a SCUM-HANDLINGBUILDING ORAREA

Holding,dewatering, orstorage

Possible grease orflammable liquidscarryover

A Enclosedspace

Division 2 NC, LC,

b B Enclosedspace

Unclassified NC, LC,

c Not enclosed,open toatmosphere

N/A Unclassified NC, LC,

4 a SCUM PITS (including scumpit for secondaryclarfiers thatpreceded byprimarysedimentation)

Buildup of vaporsfrom flammable orcombustibleliquids

A Enclosed—entire space

Division 1 NC

b B Enclosed—entire space

Division 2 NC, LC,


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Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr


Within a 3 m(10 ft)envelopearoundequipment and

open channelc

Division 2 NC, LC,

5 a SCUM-PUMPINGAREAS

Pumping of scum,wet side ofpumping station


A Enclosed —entire space

Division 1 NC

b B Enclosed —entire space

Division 2 NC, LC,



open channelc

Division 2 NC, LC,


Pumping of scum,dry side ofpumping station

Buildup of vaporsfrom flammableand combustibleliquids

D Enclosedspace

Division 2 NC, LC,

b C Enclosedspace




7 SCUM

INCINERATORSef

Elimination ofscum throughburning

Fireboxexplosion frompossiblecarryover offlammable scum

NR Incineratorarea ifseparated fromscum storage

Unclass

8 a SLUDGETHICKENER(CLARIFIER)

Sludgeconcentration andremoval, gravity,or dissolved airflotation

Possiblegeneration ofmethane fromsludge; carryoverof floatingflammable liquids


Division 1 NC


Division 2 NC, LC,


Envelope0.46 m (18 in.)above watersurface and

3 m (10 ft)horizontallyfrom wetted

wallsc


21 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

9 a SLUDGEPUMPINGSTATION DRYWELLS

Dry side of asludge pumpingstation

Buildup ofmethane gas orflammable vapors

D Entire dry wellwhenphysicallyseparated froma wet well orseparatestructures

Division 2 NC, LC,

b C Entire dry wellwhenphysicallyseparated froma wet well orseparatestructures


10 a SLUDGESTORAGE WETWELLS, PITS,AND HOLDINGTANKS

Retaining ofsludge

Possiblegeneration ofmethane gas inexplosiveconcentrations;carryover offloating flammableliquids


Division 1 NC


Division 2 NC, LC,




wallsc

Division 2 NC, LC,

11 a SLUDGE-BLENDINGTANKS ANDHOLDINGWELLS

Retaining ofsludge with someagitation



Division 1 NC


Division 2 NC, LC,




wallsc

Division 2 NC, LC,

12 a DEWATERINGBUILDINGSCONTAINING

Accumulation ofmethane gas

C Entire room Unclassified NC, LC,


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Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

CENTRIFUGES,GRAVITY BELTTHICKENERS,BELT ANDVACUUMFILTERS, ANDFILTERPRESSES

Removal of waterfrom sludge andthe conveyanceof sludge cake

b D Entire room Division 2 NC, LC,

13 a ENCLOSEDSLUDGE CAKESTORAGE

Storage ofdewatered sludgecake andconveyance ofsludge cake




14 INCINERATORSf

ANDINCINERATORBUILDINGS

Conveying andburning of sludgecake

Fireboxexplosion

NR N/A Unclass

15 HEATTREATMENTUNITS, LOW- ORHIGH-PRESSUREOXIDATIONUNITS

Closed oxidationof sludge

None, other thanin high-pressuresystems

NR N/A Unclass

16 a ANAEROBICDIGESTERS,BOTH FIXEDROOF ANDFLOATINGCOVERGeneration ofsludge gas fromdigesting sludge

Leakage of gasfrom cover, piping,emergency reliefvalves, andappurtenances

Not enclosed,open toatmosphere

Tank interior;areas aboveand arounddigester cover;envelope 3 m(10 ft) abovethe highestpoint of cover,when cover isat its maximumelevation, and1.5 m (5 ft)

Division 1 NC


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Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

from any wall

b Not enclosed,open toatmosphere

Envelope

4.6 m (15 ft)above Division1 area overcover and

1.5 m (5 ft)beyondDivision 1 areaaround tankwalls

Division 2 NC

c A For digestertanks enclosedin a building:tank interior;entire areainside building

Division 1 NC

d B For digestertanks enclosedin a building:tank interior;areas aboveand arounddigester cover;envelope 3 m(10 ft) abovehighest point ofcover, whencover is at itsmaximumelevation, and1.5 m (5 ft)from any wallof digester tank

Division 1 NC

e B Remainingspace inenclosed area

Division 2 NC, LC,

17 a ANAEROBICDIGESTERCONTROLBUILDING

Storage,handling, orburning of sludgegas

Leaking andignition of sludgegas

A Entire building Division 1 NC

b B Enclosed areasthat containgas-handlingequipment

Division 2 NC, LC,

c C Physicallyseparated fromgas-handlingequipment


18 a DIGESTER GAS-PROCESSING

Sludge gasignition

A Entire room Division 1 NC


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Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

ROOMS

Gas compression,handling, andprocessing

b B Within 1.5 m(5 ft) ofequipment

Division 1 NC, LC,

c B Entire room Division 2 NC, LC,

19 ANAEROBICDIGESTER GASSTORAGE

Storage of sludgegas

Gas storagepiping andhandling

NNV Within a 3 m(10 ft)envelope oftanks, valves,andappurtenances

Division

20 a WASTE

GAS

BURNERS

Combustingexcess gas

Gas piping andappurtenances

N/A Within 3 m(10 ft)envelope of allfixtures,appurtenances,and housing

Division 1 NC

b Envelope

4.6 m (15 ft)above Division1 envelope and1.5 m (5 ft) onall sides

Division

21 CHLORINEOXIDATIONUNITS

Chlorine reactionwith sludge

Chlorine is a verystrong oxidizingagent

NR N/A Unclass

22 a UNDERGROUND(PIPING)TUNNELSCONTAININGNATURAL GASPIPING ORSLUDGE GASPIPING

Transmission ofgas, sludge,water, air, and

Ignition of naturalgas or sludgegases

D Within 3 m(10 ft) of valvesandappurtenances

Division 1 NC, LC,

b D Entire tunnel Division 2 NC, LC,

c C Areas within3 m (10 ft) ofvalves, meters,gas checkvalves,

Division 2 NC, LC,


25 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

steam via piping;also might containpower cable andconduit

condensatetraps, andother pipingappurtenances

d C Areas beyond3 m (10 ft)


23 UNDERGROUND(PIPING)TUNNELS NOTCONTAININGNATURAL GASPIPING ORSLUDGE GASPIPING

Transmission ofsludge, water, air,and steam piping;also might containpower cable andconduit

N/A NR N/A Unclass

24 a COMPOSTINGPILES

Aerobic sludgereduction

Liberation ofammonia andtoxic gas(compostingmaterials can self-ignite)

D Enclosed area Division 2 NC, LC,

b C Enclosed area Unclassified NC, LC,

25 a IN-VESSELCOMPOSTING



As required byprocess

If enclosed,interior ofreactor vesselplus a 3 m(10 ft)envelopearound reactorvessel

Division 2 NC

b As required byprocess

Areas beyond3 m (10 ft)

Unclassified NC

26 ODOR-CONTROLANDVENTILATIONSYSTEMSSERVINGCLASSIFIEDAREAS (SeeTable 4.2.2)

27 PUMPING OFDRAINAGEFROMDIGESTEDSLUDGE-

N/A NR N/A Unclass


26 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

DEWATERINGPROCESSES

Pumping ofcentrate, filtrate,leachate, dryingbeds, and so forth

Note: The following codes are used in this table:

A: No ventilation or ventilated at less than 12 air changes per hour

B: Continuously ventilated at 12 air changes per hour in accordance with Chapter 9

C: Continuously ventilated at six air changes per hour in accordance with Chapter 9

CGD: Combustible gas detection system

D: No ventilation or ventilated at less than six air changes per hour

FAS: Fire alarm system

FDS: Fire detection system

FE: Portable fire extinguisher

FSS: Fire suppression system (e.g., automatic sprinkler, water spray, foam, gaseous, or dry chemical)

H: Hydrant protection in accordance with 7.2.4

LC: Limited-combustible material

LFS: Low flame spread index material

N/A: Not applicable

NC: Noncombustible material

NEC: In accordance with NFPA 70

NNV: Not normally ventilated

NR: No requirement

aThe “Row” and “Line” columns are used to refer to specific figures in A.6.2 and specific requirements foreach location and function.

bThis column indicates the ventilation requirements for processes. Additional ventilation requirements areprovided in Chapter 9. Ventilation signaling and alarm requirements are provided in Chapter 7.

cThe area beyond the envelope is unclassified.

dThese unit processes use corrosive chemicals that can have a deteriorating effect on conductors andequipment. Electrical equipment shall be identified for use in the operating environment.

eThis column indicates the materials of construction for processes. Materials of construction for buildings inwhich these processes are housed are in accordance with the applicable building code and constructionrequirements provided in Chapter 8.

fSee NFPA 54, NFPA 82, and NFPA 85.

Table 6.2.2(b) Solids Treatment Processes — Sludge Drying

Row LineLocation and

Function

Fire andExplosion

HazardVentilationa,b

Extent ofClassified

Area

NEC AreaElectrical

Classification

Materials of

Constructiond

FireProtectMeasur


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(All Class II,

Group G)c

1 a SLUDGE-DRYING

PROCESSESe

Potentialfor ignitionof dust

NR If exposedtocombustibleparticulatesolids,

entire roomf

Division 1 NC(Construction inaccordance withNFPA 30,NFPA 68,NFPA 69,NFPA 499, andNFPA 654)

H, FAS,and FSS(SeeNFPA 30NFPA 61NFPA 69NFPA 85NFPA 49andNFPA 65

b NR Areaswithinequipmentprocessingcombustibleparticulatesolids



c NR Areaswithin 3 m(10 ft) ofequipmentprocessingcombustibleparticulatesolids



d NR Areasbeyond 3 m(10 ft) ofequipmentprocessingcombustibleparticulatesolids

Unclassified NC(Construction inaccordance withNFPA 30,NFPA 68,NFPA 69,NFPA 499, andNFPA 654)


2 a DRIEDSLUDGESTORAGEAREAS, IFENCLOSED


NR If exposedto driedsludge,entire

roome

Division 1 NC(Construction inaccordance withNFPA 68 andNFPA 69,NFPA 499, andNFPA 654)

H, FAS(SeeNFPA 61NFPA 69NFPA 49and NPF654)

b NR Areaswithin tanksstoringdriedsludge

Division 1 NC(Construction inaccordance withNFPA 68,NFPA 69,NFPA 499, andNFPA 654)

H and FA(SeeNFPA 61NFPA 69NFPA 49andNFPA 65


28 of 71 10/2/2017, 1:18 PM

c NR Areaswithin 3 m(10 ft) oftanksstoringdriedsludge



d NR Areasbeyond 3 m(10 ft) oftanksstoringdriedsludge

Unclassified NC(Construction inaccordance withNFPA 68,NFPA 69,NFPA 499, andNFPA 654)








NR: No requirement

aThis column indicates the ventilation requirements for processes. Additional ventilation requirements areprovided in Chapter 9. Ventilation signaling and alarm requirements are provided in Chapter 7.

bFor sludge-drying processes that use flammable or combustible liquids, ventilate in accordance withNFPA 30.

cOr if acceptable to the authority having jurisdiction with classification in NFPA 499.

dThis column indicates the materials of construction for processes. Materials of construction for buildings inwhich these processes are housed are in accordance with the applicable building code and constructionrequirements provided in Chapter 8.

eSee NFPA 54, NFPA 85, NFPA 499, and NFPA 654. For sludge-drying processes that use flammable orcombustible liquids, see NFPA 30.

fThe area beyond the envelope is unclassified.


Table 6.2.2, Raw 4C ( 2016 edition) is unclear if scum pits for secondary clarifier ( which proceeded by primary sedimentation) is classified or not. I assume it is classified for the following reasons:

1- NFPA 820 ( 2016) Chapter 3.3.47 defines Scum or Skimming as :." Grease, solids, liquids, and other floatable material removed from settling tanks."2- Throughout the NFPA 820, Scum Pumping is classified.3- Annex D.2.4.1 of NFPA 820 "which is for informational "states : Scum pits collect scum, grease, and other floating flammable liquids from the surface of sedimentation tanks. Special consideration should be given to equipment located in these areas because of potential explosion and fire hazards.

Based on the above I will bthink Scum Pit is classified even it is for the secondary clarifier (which proceeded by primary sedimentation)


Submitter Full Name: Taha Mohammed


29 of 71 10/2/2017, 1:18 PM

Organization: CDM Smith

Street Address:

City:

State:

Zip:

Submittal Date: Sat Mar 18 21:12:02 EDT 2017


30 of 71 10/2/2017, 1:18 PM



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6.2.2


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The design and construction of solids treatment processes associated with wastewater solids treatmentshall conform to Table 6.2.2(a) and Table 6.2.2(b).

Table 6.2.2(a) Solids Treatment Processes


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

1 COARSE ANDFINESCREENINGS-

HANDLINGBUILDINGS

Storage,conveying, ordewatering ofscreenings (noexposed flow ofwastewaterthrough building orarea)

N/A NR N/A Unclass

2 GRIT-HANDLINGBUILDING

Storage,conveying, anddewatering ofheavy smallscreenings andgrit (no exposedflow of wastewaterthrough building orarea)

N/A NR N/A Unclass

3 a SCUM-HANDLINGBUILDING ORAREA

Holding,dewatering, orstorage

Possible grease orflammable liquidscarryover

A Enclosedspace

Division 2 NC, LC,

b B Enclosedspace




4 a SCUM PITS Buildup of vaporsfrom flammable orcombustibleliquids

A Enclosed—entire space

Division 1 NC

b B Enclosed—entire space

Division 2 NC, LC,


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Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr



open channelc

Division 2 NC, LC,


Pumping of scum,wet side ofpumping station



Division 1 NC


Division 2 NC, LC,



open channelc

Division 2 NC, LC,


Pumping of scum,dry side ofpumping station

Buildup of vaporsfrom flammableand combustibleliquids

D Enclosedspace

Division 2 NC, LC,

b C Enclosedspace




7 SCUM

INCINERATORSef

Elimination ofscum throughburning

Fireboxexplosion frompossiblecarryover offlammable scum

NR Incineratorarea ifseparated fromscum storage

Unclass

8 a SLUDGETHICKENER(CLARIFIER)

Sludgeconcentration andremoval, gravity,or dissolved airflotation

Possiblegeneration ofmethane fromsludge; carryoverof floatingflammable liquids


Division 1 NC


Division 2 NC, LC,




wallsc


34 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

9 a SLUDGEPUMPINGSTATION DRYWELLS

Dry side of asludge pumpingstation

Buildup ofmethane gas orflammable vapors

D Entire dry wellwhenphysicallyseparated froma wet well orseparatestructures

Division 2 NC, LC,

b C Entire dry wellwhenphysicallyseparated froma wet well orseparatestructures


10 a SLUDGESTORAGE WETWELLS, PITS,AND HOLDINGTANKS

Retaining ofsludge



Division 1 NC


Division 2 NC, LC,




wallsc

Division 2 NC, LC,

11 a SLUDGE-BLENDINGTANKS ANDHOLDINGWELLS

Retaining ofsludge with someagitation



Division 1 NC


Division 2 NC, LC,




wallsc

Division 2 NC, LC,

12 a DEWATERINGBUILDINGSCONTAINING




35 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

CENTRIFUGES,GRAVITY BELTTHICKENERS,BELT ANDVACUUMFILTERS, ANDFILTERPRESSES

Removal of waterfrom sludge andthe conveyanceof sludge cake


13 a ENCLOSEDSLUDGE CAKESTORAGE

Storage ofdewatered sludgecake andconveyance ofsludge cake




14 INCINERATORSf

ANDINCINERATORBUILDINGS

Conveying andburning of sludgecake

Fireboxexplosion

NR N/A Unclass

15 HEATTREATMENTUNITS, LOW- ORHIGH-PRESSUREOXIDATIONUNITS

Closed oxidationof sludge

None, other thanin high-pressuresystems

NR N/A Unclass

16 a ANAEROBICDIGESTERS,BOTH FIXEDROOF ANDFLOATINGCOVERGeneration ofsludge gas fromdigesting sludge

Leakage of gasfrom cover, piping,emergency reliefvalves, andappurtenances

Not enclosed,open toatmosphere

Tank interior;areas aboveand arounddigester cover;envelope 3 m(10 ft) abovethe highestpoint of cover,when cover isat its maximumelevation, and1.5 m (5 ft)

Division 1 NC


36 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

from any wall

b Not enclosed,open toatmosphere

Envelope

4.6 m (15 ft)above Division1 area overcover and

1.5 m (5 ft)beyondDivision 1 areaaround tankwalls

Division 2 NC

c A For digestertanks enclosedin a building:tank interior;entire areainside building

Division 1 NC

d B For digestertanks enclosedin a building:tank interior;areas aboveand arounddigester cover;envelope 3 m(10 ft) abovehighest point ofcover, whencover is at itsmaximumelevation, and1.5 m (5 ft)from any wallof digester tank

Division 1 NC

e B Remainingspace inenclosed area

Division 2 NC, LC,

17 a ANAEROBICDIGESTERCONTROLBUILDING

Storage,handling, orburning of sludgegas

Leaking andignition of sludgegas

A Entire building Division 1 NC

b B Enclosed areasthat containgas-handlingequipment

Division 2 NC, LC,

c C Physicallyseparated fromgas-handlingequipment


18 a DIGESTER GAS-PROCESSING

Sludge gasignition

A Entire room Division 1 NC


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Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

ROOMS

Gas compression,handling, andprocessing

b B Within 1.5 m(5 ft) ofequipment

Division 1 NC, LC,

c B Entire room Division 2 NC, LC,

19 ANAEROBICDIGESTER GASSTORAGE

Storage of sludgegas

Gas storagepiping andhandling

NNV Within a 3 m(10 ft)envelope oftanks, valves,andappurtenances

Division

20 a WASTE

GAS

BURNERS

Combustingexcess gas

Gas piping andappurtenances

N/A Within 3 m(10 ft)envelope of allfixtures,appurtenances,and housing

Division 1 NC

b Envelope

4.6 m (15 ft)above Division1 envelope and1.5 m (5 ft) onall sides

Division

21 CHLORINEOXIDATIONUNITS

Chlorine reactionwith sludge

Chlorine is a verystrong oxidizingagent

NR N/A Unclass

22 a UNDERGROUND(PIPING)TUNNELSCONTAININGNATURAL GASPIPING ORSLUDGE GASPIPING

Transmission ofgas, sludge,water, air, and

Ignition of naturalgas or sludgegases

D Within 3 m(10 ft) of valvesandappurtenances

Division 1 NC, LC,

b D Entire tunnel Division 2 NC, LC,

c C Areas within3 m (10 ft) ofvalves, meters,gas checkvalves,

Division 2 NC, LC,


38 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

steam via piping;also might containpower cable andconduit

condensatetraps, andother pipingappurtenances

d C Areas beyond3 m (10 ft)


23 UNDERGROUND(PIPING)TUNNELS NOTCONTAININGNATURAL GASPIPING ORSLUDGE GASPIPING

Transmission ofsludge, water, air,and steam piping;also might containpower cable andconduit

N/A NR N/A Unclass

24 a COMPOSTINGPILES



D Enclosed area Division 2 NC, LC,

b C Enclosed area Unclassified NC, LC,

25 a IN-VESSELCOMPOSTING



As required byprocess

If enclosed,interior ofreactor vesselplus a 3 m(10 ft)envelopearound reactorvessel

Division 2 NC

b As required byprocess

Areas beyond3 m (10 ft)

Unclassified NC

26 ODOR-CONTROLANDVENTILATIONSYSTEMSSERVINGCLASSIFIEDAREAS (SeeTable 4.2.2)

27 PUMPING OFDRAINAGEFROMDIGESTEDSLUDGE-

N/A NR N/A Unclass


39 of 71 10/2/2017, 1:18 PM


Fire andExplosion


Extent ofClassified

Area

NEC AreaElectrical


Group D)d

Mater

Constr

DEWATERINGPROCESSES

Pumping ofcentrate, filtrate,leachate, dryingbeds, and so forth


A: No ventilation or ventilated at less than 12 air changes per hour

B: Continuously ventilated at 12 air changes per hour in accordance with Chapter 9

C: Continuously ventilated at six air changes per hour in accordance with Chapter 9

CGD: Combustible gas detection system

D: No ventilation or ventilated at less than six air changes per hour


FDS: Fire detection system

FE: Portable fire extinguisher



LC: Limited-combustible material

LFS: Low flame spread index material

N/A: Not applicable



NNV: Not normally ventilated

NR: No requirement

aThe “Row” and “Line” columns are used to refer to specific figures in A.6.2 and specific requirements foreach location and function.

bThis column indicates the ventilation requirements for processes. Additional ventilation requirements areprovided in Chapter 9. Ventilation signaling and alarm requirements are provided in Chapter 7.

cThe area beyond the envelope is unclassified.

dThese unit processes use corrosive chemicals that can have a deteriorating effect on conductors andequipment. Electrical equipment shall be identified for use in the operating environment.

eThis column indicates the materials of construction for processes. Materials of construction for buildings inwhich these processes are housed are in accordance with the applicable building code and constructionrequirements provided in Chapter 8.

fSee NFPA 54, NFPA 82, and NFPA 85.

Table 6.2.2(b) Solids Treatment Processes — Sludge Drying

Row LineLocation and

Function

Fire andExplosion

HazardVentilationa,b

Extent ofClassified

Area

NEC AreaElectrical

Classification

Materials of

Constructiond

FirProtecMeasu


40 of 71 10/2/2017, 1:18 PM

(All Class II,

Group G)c

1 a SLUDGE-DRYING

PROCESSESe


NR If exposedtocombustibleparticulatesolids,

entire roomf


H, FASand FS(SeeNFPA 3NFPA 6NFPA 6NFPA 8NFPA 4andNFPA 6

b NR Areaswithinequipmentprocessingcombustibleparticulatesolids



c NR Areaswithin 3 m(10 ft) ofequipmentprocessingcombustibleparticulatesolids



d NR Areasbeyond 3 m(10 ft) ofequipmentprocessingcombustibleparticulatesolids

Unclassified NC(Construction inaccordance withNFPA 30,NFPA 68,NFPA 69,NFPA 499, andNFPA 654)


2 a DRIEDSLUDGEAdd a new rowfor

SLUDGE-DRYING

PROCESSES e

LOW-TEMPERATURETHERMAL

DRYING g


NR If exposedto driedsludge,entire

roome

Division 1 NC(Construction inaccordance withNFPA 68 andNFPA 69,NFPA 499, andNFPA 654)

H, FAS(SeeNFPA 6NFPA 6NFPA 4and NP654)

b NR Areaswithin tanksstoringdriedsludge


H and F(SeeNFPA 6NFPA 6NFPA 4andNFPA 6


41 of 71 10/2/2017, 1:18 PM

DRIEDSLUDGESTORAGEAREAS, IFENCLOSED

c NR Areaswithin 3 m(10 ft) oftanksstoringdriedsludge



d NR Areasbeyond 3 m(10 ft) oftanksstoringdriedsludge

Unclassified NC(Construction inaccordance withNFPA 68,NFPA 69,NFPA 499, andNFPA 654)








NR: No requirement

aThis column indicates the ventilation requirements for processes. Additional ventilation requirements areprovided in Chapter 9. Ventilation signaling and alarm requirements are provided in Chapter 7.

bFor sludge-drying processes that use flammable or combustible liquids, ventilate in accordance withNFPA 30.

cOr if acceptable to the authority having jurisdiction with classification in NFPA 499.

dThis column indicates the materials of construction for processes. Materials of construction for buildings inwhich these processes are housed are in accordance with the applicable building code and constructionrequirements provided in Chapter 8.

eSee NFPA 54, NFPA 85, NFPA 499, and NFPA 654. For sludge-drying processes that use flammable orcombustible liquids, see NFPA 30.

fThe area beyond the envelope is unclassified.

g The Low-Temperature Thermal Drying Process is defined as an internally circulated hygroscopiccondition within the totally enclosed envelope of the process equipment. Temperature within theenvironment shall not exceed 90°C.



Capture_Table6.2.2_b_Edit.JPG Table 6.2.2(b) Edit by James Willson

NFPA_820_Public_Input-Complete.pdf Supporting document for NFPA 820 Table 6.2.2(b) revision


The low-temperature thermal process differs greatly from thermal-oil, high-temperature technologies. The current standard technology produces the combustible dust environment within and surrounding the process equipment. The low-temperature thermal process technology greatly minimizes the possible production of "combustible particulate" and therefore, should not fall within the same design constraints as the high-temperature technologies.



42 of 71 10/2/2017, 1:18 PM

Submitter Full Name: James Willson

Organization: Suez Advanced Solutions

Street Address:

City:

State:

Zip:

Submittal Date: Tue Jun 27 15:11:46 EDT 2017


43 of 71 10/2/2017, 1:18 PM


7.2.4.2

Water supplies and hydrants, required by chapter 5 and 6, shall be installed in accordance with thefollowing standards, as applicable:

(1) NFPA 1, Fire Code

(2) NFPA 22, Standard for Water Tanks for Private Fire Protection

(3) NFPA 24, Standard for the Installation of Private Fire Service Mains and Their Appurtenances

(4) NFPA 1142, Standard for Suburban and Rural Fire Fighting


The current language in this section does not specify where the underlying requirement for hydrant placement comes from. This leads the user to be disconnected between the table requirements for a hydrant in chapters 6 and 7. This PI points the user to chapter 6 and 7 as creating the core requirement for the hydrant in the first place.




Street Address:

City:

State:

Zip:



44 of 71 10/2/2017, 1:18 PM


7.2.4.3 Standpipes shall be required in accordance with the following:

(Extract the provisions of NFPA 1 section 13.2.2.2)

7.2.4.3.1 Standpipes and hose systems shall be installed and inspected in accordance with NFPA 14.


Currently, it does not appear that there is anywhere in NFPA 820 where the issue of standpipes being installed is provided. This PI extracts the provisions of NFPA 1 13.2.2.2 into NFPA 820 to provide the criteria for when the installation of standpipes is required.




Street Address:

City:

State:

Zip:



45 of 71 10/2/2017, 1:18 PM


7.2.5 Portable Fire Extinguishers.

7.2.5.1 Portable fire extinguishers shall be provided in accordance with the requirements of chapter 4, 5and 6.

7.2.5.2

Portable fire extinguishers shall be installed, located, and maintained in accordance with NFPA 10.

7.2.5.2 3

The requirement for portable fire extinguishers shall be permitted to be waived where areas are notcommonly occupied and the approval of the authority having jurisdiction has been obtained.


The requirement for placement of fire extinguisher is in the tables withing chapters 4, 5 and 6. Those chapters should be reference in chapter 7. Otherwise, the user is left with the impression that fire extinguishers are required everywhere.




Street Address:

City:

State:

Zip:



46 of 71 10/2/2017, 1:18 PM


VOC Sensors

Early Editions of NFPA-820 considered the installation of Combustible Gas Detectors in CollectionSystems (Storm and Sanitary Wet Wells) as a measure to detect Fuel Spill from entering the CollectionsSystem. Should VOC Combustible Gas Detectors be explicitly specifed for this purpose?


Detection of Fuel Spills entering Collection System - VOC Gas Detection Sensors not specifically called for.



Organization: EMA Canada

Street Address:

City:

State:

Zip:



47 of 71 10/2/2017, 1:18 PM


Add Appendix Note

Combustible Gas Detectors required in this Standard are intended primarily for Fire Protection, eitherprotection of the Physical Asset or preventing personnel from approaching a Hazardous Atmospherewithout warning, however, it should be noted that the Combustible Gas Detectors installed in this Standardshall not take the place or negate the need for personal gas (atmosphere) sensors required when enteringa confined space. Reference the NFPA document for Confined Space for this purpose.


Combustible Gas Detectors, of the fixed placement type, shall not negate the need for personal gas monitors when entering a confined space, even though fixed combustible gas detectors may be installed in the same confined space under this standard.




Street Address:

City:

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Public Input No. 34-NFPA 820-2017 [ Section No. 7.4.6 [Excluding any Sub-Sections] ]

Detectors required as fire protection measures in Table 4.2.2, Table 5.2.2, Table 6.2.2(a) and Table 6.2.2(b)shall be set to alarm at 10 percent of the lower explosive limit (LEL) in accordance with the manufacturers’calibration instructions and shall be connected to alarm signaling systems that shall comply with therequirements of Section 7.6.

IR Line-of-Sight Combustible Gas Detection Sensors are now a Combusile Gas Detector Sensor of choiceto install in Wastewater Teatment Plants to cover larger areas than Point Sensors. These senors provide adetection level of LEL per meter, and there is currently not a 1:1 relationship between Alarm Setpoints forPoint Sensors vs. Line-of-Sight Sensors. Propose setting the Alarm Limit of the Line-of-Sight Sensor to 0.5LEL per meter based on discussions with experts at General Monitors.


As there is not an alarm setpoint given in the Standard of LEL per Meter, NFPA-820 has in effect not permitted the use of IR Line-of-Sight Combustible Gas Sensors in this Standard.




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8.2.3.3* Limited-Combustible Material.

A material shall be considered a limited-combustible material where both of the following conditions of8.2.2(1), 8.2.2(2), and the conditions of either 8.2.3.3.1 or 8.2.3.3.2 are met:

(1) The material does not comply with the requirements for a noncombustible material in accordance with8.2.3.

(2) The material, in the form in which it is used, exhibits a potential heat value not exceeding 3500 Btu/lb(8141 kJ/kg), when tested in accordance with NFPA 259. [5000:7.1.4.2]

8.2.3.3.1

The material shall have a structural base of noncombustible material with a surfacing not exceeding athickness of 1⁄8 in. (3.2 mm) where the surfacing exhibits a flame spread index not greater than 50 whentested in accordance with ASTM E84, Standard Test Method for Surface Burning Characteristics of BuildingMaterials, or ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Building Materials.[5000:7.1.4.2.1]

8.2.3.3.2

The material shall be composed of materials that in the form and thickness used, neither exhibit a flamespread index greater than 25 nor evidence of continued progressive combustion when tested in accordancewith ASTM E84 or ANSI/UL 723 and are of such composition that all surfaces that would be exposed bycutting through the material on any plane would neither exhibit a flame spread index greater than 25 norexhibit evidence of continued progressive combustion when tested in accordance with ASTM E84 orANSI/UL 723. [5000:7.1.4.2.2]

8.2.3.3.3

Materials shall be considered limited-combustible materials where tested in accordance withASTM E2965, Standard Test for Determination of Low Levels of Heat Release Rate forMaterials and Products Using an Oxygen Combustion Calorimeter , at an incident heat flux of

75 kW/m 2 for a 20-minute exposure, and both the following conditions are met:

(1) The peak heat release rate shall not exceed 150 kW/m 2 for longer than 10 seconds.

(2) The total heat released shall not exceed 8 MJ/m 2 . [5000:7.1.4.2.3]

8.2.3.3.4

Where the term limited-combustible is used in this standard, it shall also include the term noncombustible.[5000:7.1.4.2.3 4 ]


This is extracted material from NFPA 5000-2015 and the public input simply updates the extract to NFPA 5000-2018. A new ASTM reference (ASTM E2965) will be added also into the appropriate section 2.




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Public Input No. 47-NFPA 820-2017 [Section No. 2.3.1]




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8.3.8.2

Systems supplying or exhausting air at a rate greater than 56.6 m 3 /min (2000 ft 3 /min) shall include listedsmoke dampers, listed fire dampers, and smoke detection and shall cause the ventilation system to shutdown upon detection of smoke.


As currently written, this paragraph uses an airflow value as the test to determine when to install fire dampers and smoke dampers. However, the criteria for fire dampers and smoke dampers is already published in NFPA 90A paragraph 5.3 and it is based primarily on whether there is a penetration of a rated assembly.

As currently written, this paragraph requires smoke detectors in supply and exhaust systems that are greater than 2000 cfm. The criteria for smoke detectors in supply systems is already published in NFPA 90A paragraph 6.4.2, so including it in 820 is redundant. The proposed change deletes smoke detectors in exhaust systems because they are not required in exhaust-only systems per NFPA 90A paragraph 6.4.2.3.


Submitter Full Name: Christopher Monroe


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9.2.3

Ventilation systems serving hazardous Fan located in,or exposed to air from, hazardous areas classifiedunder the provisions of Article 500 of NFPA 70 shall incorporate fans fabricated shall be fabricated inaccordance with Air Moving and Control Association (AMCA) Type A or Type B spark-resistantconstruction,or shall have their air-contacting surfaces be fabricated from non-metallic materials .


As currently written this paragraph requires supply fans that are part of the ventilation system to have spark resistant construction. However, in some cases the supply fan can be located such that its air-contacting surfaces are not exposed to the classified airstream and/or it can be located in an adjacent, non-classified room. In those cases spark resistant construction is not necessary.

"Type A" or "Type B" designation is not always available on the particular fan type, size, or arrangement that is best suited for the duct geometry and room airflow. The proposed change allows non-metallic fans to be considered.




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9.2.4

All mechanically ventilated spaces shall Spaces that are required to be contiinuosly mechanicallyventilated shall be served by both supply and exhaust fans, unless otherwise permitted by the following:

(1) For covered process facilities that are not routinely entered by normally enterred by personnel andwhere mechanically ventilated, the space shall be permitted to be ventilated by exhaust fans only, andthe induced supply (outside) air shall meet the ventilation rate specified in the applicable chapter whendetermining the area classification.

(2) Small aboveground buildings and structures, including domes and covers, with a floor or surface of

9.3 m2 (100 ft2) or less that are physically separated from other buildings or structures and do notpresent a fire hazard to other buildings or structures shall be permitted to be ventilated by a supply fanonly.


The current wording is not clear. If mechanical ventilation is provided for other than fire protections (e.g., odor control, air quality, temperature control, etc.) then both mechanical supply and exhaust is required. In Class I, Div. I areas where ventilation is not required why is both mechanical supply and exhaust required if the ventilation is not required per 820?


Submitter Full Name: Norman Bartley

Organization: Hazen Sawyer PC

Affilliation: HVAC Manager

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Submittal Date: Wed Dec 21 09:14:06 EST 2016


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9.2.4

All mechanically ventilated spaces shall be served by both supply and exhaust fans, unless otherwisepermitted by the following:

(1) For covered process facilities that are not routinely entered by personnel and where mechanicallyventilated, the space shall be permitted to be ventilated by exhaust fans only, and the induced supply(outside) air shall meet the ventilation rate specified in the applicable chapter when determining thearea classification.

(2) Small aboveground buildings and structures, including domes and covers, with a floor or surface of

9.3 m2 (100 ft2) or less that are physically separated from other buildings or structures and do notpresent a fire hazard to other buildings or structures shall be permitted to be ventilated by a supply fanonly.

(3) Belowgrade or partially belowgrade pumping station drywells that are not routinely entered bypersonnel and where mechanically ventilated, the space shall be permitted to be ventilated by supplyfans only, and the induced supply (outside) air shall meet the ventilation rate specified in the applicablechapter when determining the area classificaton.


In Section 9.2.4.1, an exemption currently states that process facilities not routinely entered by personnel can be ventilated by just an exhaust fan. The addition of 9.2.4.3, as I have suggested, would resolve the potential of individuals using only an exhaust fan and exemption 9.2.4.1 for pumping station dry wells. I believe the intent of the code is to maintain positive pressure in pumping station dry wells (9.2.5), which requires a supply fan.


Submitter Full Name: Joel Linke

Organization: Parametrix

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9.2.5

Ventilation systems serving unclassified areas adjacent to classified areas shall maintain a differentialpressure positive pressure relative to ambient air pressure of 25 Pa (0.1 in. water column) under alloperating conditions.


0.1 inch water column differential is extreme and difficult, if not impossible, to achieve. Also, pressure transducers are not commonly installed due to the corrosive environment of wastewater treatment plants. Enforcement of a specific value of pressurization is not practical.



Public Input No. 41-NFPA 820-2017 [Section No. 9.2.6] Parallel condition with a similar concern.




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9.2.6

Ventilation systems serving classified areas shall maintain a differential pressure a negative pressurerelative to ambient air pressure of −25 Pa (−0.1 in. water column) under all operating conditions.


0.1 inch water column differential is extreme and difficult, if not impossible, to achieve. Also, pressure transducers are not commonly installed due to the corrosive environment of wastewater treatment plants. Enforcement of a specific value of pressurization is not practical.







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9.2.8

Air shall be introduced into and exhausted from hazardous areas specified in 9.2.7 in a manner that willencourage scavenging of all portions of the spaces to prevent short-circuiting and to promote the effectiveremoval of both heavier- and or lighter-than-air gases and vapors.


As currently written it appears that both heavy and light vapors are expected in each space. Some spaces only potentially have vapors that are heavier than air, and some spaces potentially only have vapors that are lighter than air.




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9.3.1.2

Ventilation rates shall conform to those listed in Table 9.1.1.4 in order to obtain the lowest area electricalclassification possible in accordance with NFPA 70 .


Ventilation rates are already defined in paragraph 9.1.1.4 so mentioning them in 9.3.1.2 is redundant.

The requirement to obtain the lowest area electrical classification possible may not be desirable by the owner due to cost or complexity concerns. It may be preferable to have a space rated at Class 1 Division 2 even though it is technically possible to provide airflow and instrumentation to make it unclassified. Similarly, it may be preferable to have a space rated at Class 1 Division 1 even though it is technically possible to provide airflow and instrumentation to make it Class 1 Division 2.




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9.3.2

Ventilation rates required by this standard shall be permitted to be reduced when all of the following criteriaare met:

(1) The low ventilation rate is not less than 50 percent of that specified in Table 9.1.1.4.

(2) The low ventilation rate is in operation only when the supply ambient air temperature is 10°C (50°F)or less.

(3) The high ventilation rate is not less than that specified in Table 9.1.1.4.

(4) The high ventilation rate is in operation whenever the supply ambient air temperature is above 10°C(50°F), whenever the ventilated space is occupied, or whenever the ventilation is activated byapproved combustible gas detectors set to function at 10 percent of the lower flammable limit (LFL).

(5) The ventilation differential pressurization required in 9.2.5 and 9.2.6 is maintained.


"Supply" air temperature is typically thought of as the air that is downstream of an air handling unit. That air is downstream of the heating coil in the air handling unit. It will often be heated to greater than 50 degrees F to maintain a warm space temperature. As the standard currently reads, a reduction to a low ventilation rate is almost never allowed for a supply system that includes a heating air handling unit because the supply air temperature will almost always be greater than 50 degrees F.

I believe the intent of paragraph 9.3.2.1 and 9.3.2.4 is to allow the low ventilation rate when it is less than 50 degrees outside.




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Submittal Date: Tue Dec 20 13:51:06 EST 2016


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9.3.3 *

Recirculation of up to 75 percent of the exhaust airflow rate for unclassified areas shall be permitted,provided that the following criteria are met:

(1) The recirculated air and outside airflow rate total is not less than 6 air changes per hour.

(2) Recirculation does not occur during occupancy.

(3) Recirculation does not occur whenever a combustible gas detector senses a lower flammable limit of10 percent or greater.

Verbiage is confussing. Contradicts other standards such as Ansi B149.6, 10 states standards, and theenergy code. Safety and fire prevention first but this is difficult to follow and implement

What about the use of oil/gasoline detectors (e.g. http://www.covaltech.com/en/other-products/43-sewage-systems-alarm )? Everyone uses the tanker truck example for high ventilation rates. Let's bring them"down" and use detectors. If they are found in sufficient guantaties, ranp up the ventilation rate! Meetenergy code and be safe, like using the CGD


Meet other codes while being safe




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Submittal Date: Wed Mar 01 16:57:16 EST 2017


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Public Input No. 20-NFPA 820-2017 [ New Section after A.4.2 ]

4.2 (H)

Clarification when combining 4.2 E and 4.2 F Many older stations are not physically reparated from gradeto drywell. The issue then arrises as to if the "pump" being the physicall seal/separation between aclassified and unclassified zone.


There is a "GAP" with some existing plants




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Public Input No. 21-NFPA 820-2017 [ Section No. A.5.2 ]

A.5.2

See Figure A.5.2, which provides an example for Table 5.2.2.

Figure A.5.2 Primary Sedimentation Tank; Illustration of Table 5.2.2, Row 7.



A52_proposed.pdf Proposed change to figure A.5.2


See the attached document.


Submitter Full Name: John Fabian


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Submittal Date: Thu Mar 02 13:29:06 EST 2017


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Grade

FIGURE A.5.2 Primary Sedimentation Tank; Illustration of Table 5.2.2, Row 7.

Division 2 Unclassified

Open Air, Not Enclosed

Grade

0.46m (1.5 ft) radius around top of tank wall

0.46m (1.5 ft) above top of tank

Minimum operating liquid level

Explanation of proposed change:The current standard shows a div 2 area extending 10 ft

away from the walls, 18 inches above grade. These is

appropriate for more volatile liquids like octane but not sewage. Small puddles of sewage, in the open air will not generate enough methane to reach the LEL. For the case where a major tank overflow has occurred, plant-wide flooding (beyond 10 ft) would likely occur and this would be a catastrophic event. Please consider this change since it would provide greater flexibility in the location of equipment and conduit seal-offs.If considered, this affects several table entries.

Public Input No. 50-NFPA 820-2017 [ Section No. A.8.2.2(5) ]

A.8.2.2(5)

The smoke developed index is assessed by means of testing via ASTM E84 or ANSI/UL 723. The smokedeveloped index is assessed by means of testing via ASTM E84 or ANSI/UL 723.


The same sentence is present twice and the second instance is being deleted.




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Public Input No. 51-NFPA 820-2017 [ Section No. A.8.2.3.4 ]

A.8.2.3.4

A flame spread index of 25 or less (LFS) is a flame spread index for a Class A material in accordance withASTM E84 and is generally considered a low flame spread index. The concept of heat release rate as ameasure of fire hazard has grown in acceptance in recent years, Therefore, codes recognize that materialstested to NFPA 286 which comply with the criteria below are suitable for use wherever a material with aflame spread index of 25 or less (and a smoke developed index of 450 or less), in accordance with ASTME84, is required to be used.

(1) During the 40 kW exposure, flames should not spread to the ceiling.

(2) The flame should not spread to the outer extremity of the sample on any wall or ceiling.

(3) Flashover, as described in NFPA 286, should not occur.

(4) The peak heat release rate throughout the test should not exceed 800 kW.

(5) The total smoke released throughout the test should not exceed 1000 m 2 .


This public input adds information on an alternate approach to assess whether a material is (or is not) a low flame spread material. NFPA 101 and NFPA 5000 (as well as other codes) recognize that tests conducted to NFPA 286 (known as a room-corner heat release test) with the pass/fail criteria shown, are suitable for use wherever a material required to meet a flame spread index of 25 or less (and a smoke developed index of 450 or less) is required. see, for example, chapters 10 of NFPA 101 and NFPA 5000. This public input does not change requirements for NFPA 820.



Public Input No. 52-NFPA 820-2017 [Section No. E.1.1]




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Public Input No. 18-NFPA 820-2017 [ Section No. A.9.3.3 ]

A.9.3.3

Ventilation rates and procedures established by this standard might not be sufficient to protect personnelfrom exposure to toxic gases that might be present in enclosed spaces. For further information, refer toIndustrial Ventilation — A Manual of Recommended Practice for Design, published by the AmericanConference of Governmental Industrial Hygienists (ACGIH) and 29 CFR 1910.1000, “Air Contaminants.”

Many times, ACGIH has ventilation rates that are LOWER than 820. This has been used by someconsultants as an argument. A statement about the stricker of the two or other clarification is warranted.


Conflicts with other guides




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Public Input No. 52-NFPA 820-2017 [ Section No. E.1.1 ]


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E.1.1 NFPA Publications.

National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NFPA 1, Fire Code, 2015 edition.

NFPA 13, Standard for the Installation of Sprinkler Systems, 2016 edition.

NFPA 30, Flammable and Combustible Liquids Code, 2015 edition.

NFPA 31, Standard for the Installation of Oil-Burning Equipment, 2016 edition.

NFPA 37, Standard for the Installation and Use of Stationary Combustion Engines and Gas Turbines, 2015edition.

NFPA 45, Standard on Fire Protection for Laboratories Using Chemicals, 2015 edition.

NFPA 51B, Standard for Fire Prevention During Welding, Cutting, and Other Hot Work, 2014 edition.

NFPA 53, Recommended Practice on Materials, Equipment, and Systems Used in Oxygen-EnrichedAtmospheres, 2011 edition.

NFPA 54, National Fuel Gas Code, 2015 edition.

NFPA 55, Compressed Gases and Cryogenic Fluids Code, 2016 edition.

NFPA 58, Liquefied Petroleum Gas Code, 2014 edition.

NFPA 59A, Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG), 2013edition.

NFPA 61, Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food ProcessingFacilities, 2013 edition.

NFPA 68, Standard on Explosion Protection by Deflagration Venting, 2013 edition.

NFPA 69, Standard on Explosion Prevention Systems, 2014 edition.

NFPA 70®, National Electrical Code®, 2014 edition.

NFPA 70B, Recommended Practice for Electrical Equipment Maintenance, 2013 edition.

NFPA 72®, National Fire Alarm and Signaling Code, 2016 edition.

NFPA 77, Recommended Practice on Static Electricity, 2014 edition.

NFPA 82, Standard on Incinerators and Waste and Linen Handling Systems and Equipment, 2014 edition.

NFPA 85, Boiler and Combustion Systems Hazards Code, 2015 edition.

NFPA 91, Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Particulate Solids,2015 edition.

NFPA 220, Standard on Types of Building Construction, 2015 edition.

NFPA 259, Standard Test Method for Potential Heat of Building Materials, 2013 edition.

NFPA 286, Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish toRoom Fire Growth, 2015 edition.

NFPA 329, Recommended Practice for Handling Releases of Flammable and Combustible Liquids andGases, 2015 edition.

NFPA 497, Recommended Practice for the Classification of Flammable Liquids, Gases, or Vapors and ofHazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, 2012 edition.

NFPA 499, Recommended Practice for the Classification of Combustible Dusts and of Hazardous(Classified) Locations for Electrical Installations in Chemical Process Areas, 2013 edition.

NFPA 600, Standard on Facility Fire Brigades, 2015 edition.

Fire Protection Guide to Hazardous Materials, 2010 edition.

NFPA 5000®, Building Construction and Safety Code®, 2015 edition.



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NFPA 286 is proposed to be added by an alternate public input.



Public Input No. 51-NFPA 820-2017 [Section No. A.8.2.3.4]




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Public Input No. 48-NFPA 820-2017 [ Section No. E.1.2.4 ]

E.1.2.4 ASTM Publications.

ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.

ASTM E84, Standard Test Method for Surface Burning Characteristics of Building Materials, 2013a 2017 .


date update




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Public Input No. 46-NFPA 820-2017 [ Section No. E.1.2.8 ]

E.1.2.8 UL Publications.

Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 60062-2096.

ANSI/UL 723, Tests for Surface Burning Characteristics of Building Materials, 2008, Revised 2013 .

ANSI/UL 2075, Gas and Vapor Detectors and Sensors, 2013

Hazardous Location Equipment Directory, 2010 2014 .


Update Standards





Submitter Full Name: Kelly Nicolello

Organization: UL LLC

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Submittal Date: Thu Jun 22 15:39:13 EDT 2017


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