FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE COMMITTEE...3.6 Final date for TCC meeting 12/17/10 3.7 Final...

FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE COMMITTEE

MEMORANDUM

TO: NFPA 30 Technical Committee on Tank Storage and Piping Systems

FROM: R. P. Benedetti

DATE: November 23, 2009

SUBJECT: Agenda for December 8, 2009 pre-ROP Meeting _________________________________________________________________________________ Ladies and Gentlemen: Attached you will find the Agenda for the December 8, 2009 meeting of the NFPA 30 NFPA 30 Technical Committee on Tank Storage and Piping Systems, to be held at the offices of the National Fire Protection Association, Quincy MA, 8:00 AM to 5:00 PM (Eastern Time). This material will also be posted on the Technical Committee’s ECommittee web page and can be downloaded from there. If you have any additional items to add to the Agenda, please circulate same to the rest of the Technical Committee or transmit them to me as soon as possible for distribution. I look forward to seeing you on December 8th. rpb/ cc FLCC Meeting File FLCC/NM JMoreau-Correia LFuller, Stds. Admin.

FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE COMMITTEE

AGENDA

NFPA 30 Technical Committee on Tank Storage and Piping Systems

National Fire Protection Association Offices Quincy MA

Tuesday, December 8, 2009, 8:00 AM – 5:00 PM

1. Call to Order. 2. Introduction of Attendees. Update of Committee Roster. (Attachment № A1) 3. Report of Committee Chair. 4. Report of Staff Liaison.

Review of Scope of Committee. (Attachments № A2 & № A3) Status of Technical Committee Membership. (Attachment № A4) Revision Schedule for NFPA 30-2012. (Attachment № A5)

5. Review and Action on Proposals to Amend the 2008 edition of NFPA 30.

(Attachment № A6) 6 Recent Correspondence. (NONE) 7. Other Old Business. (NONE) 8. New Business.

Need for strong prohibition against use of underground storage tanks aboveground. [Oklahoma Corporation Commission decision.]

Question: do the piping requirements of NFPA 30, Chapter 27 apply to the “belly” tanks of an emergency generator set?

Question: would a loading rack or loading/unloading station be allowed inside a diked area?

Need for guidance in NFPA 30, 22.17 for measures to be taken when flammable vapors are found in the pontoons of floating roofs. (Attachment № A7)

Determination of Wetted Area. (Attachment № A8) Need for clarification of testing requirements for shop-fabricated secondary-

containment type tanks that are shipped with a vacuum on the interstitial space. (Attachment № A9)

Table for emergency relief venting reduction factors. (Attachment № A10) Use of retractable copper grounding cables in lieu of shunts as a means to provide

grounding for floating roofs.

Need for prohibition against the use of plastic piping for tank vent lines. (CSB report on Bethune Point wastewater treatment plant explosion.)

Need to split Paragraph 21.5.2.6 of NFPA 30; it applies to both underground and aboveground tanks.

Revise NFPA 30, 25.15.1 to require a vapor detection system only for Class I liquids. (Massachusetts State Fire Marshal’s Office)

NFPA 30, 22.7.3.10 requires certain information to be “stamped” on each commercial vent device. Can this be amended to allow labels? (S. Allwein, Morrison Bros.)

Does NFPA 30 limit the size of a riveted or bolted tank? Should it use API 12B as a reference?

9. Schedule Next Meeting(s). 10. Adjournment.

ATTACHMENT № A2

FLAMMABLE AND COMBUSTIBLE

LIQUIDS CODE COMMITTEE

SCOPE STATEMENTS

Technical Correlating Committee on Flammable & Combustible Liquids

This Committee shall have primary responsibility for documents on safeguarding against the fire and explosion hazards associated with the storage, handling, and use of flammable and combustible liquids; and classifying flammable and combustible liquids. Responsible for NFPA 30, Flammable and Combustible Liquids Code, and NFPA 395, Standard for the Storage of Flammable and Combustible Liquids at Farms and Isolated Sites.

Technical Committee on Fundamentals of Flammable & Combustible Liquids

This Committee shall have primary responsibility for documents or portions of documents on the basic requirements for safeguarding against the fire and explosion hazards associated with the storage, handling, and use of flammable and combustible liquids. This Committee shall also have responsibility for definitions related to flammable and combustible liquids and for criteria for the classification of flammable and combustible liquids. Responsible for Chapter 1 of NFPA 30, Flammable and Combustible Liquids Code.

Technical Committee on Operations

This Committee shall have primary responsibility for documents or portions of documents on safeguarding against the fire and explosion hazards associated with operations that involve the handling, transfer, and use of flammable and combustible liquids, either as a principal activity or as an incidental activity. Responsible for Chapters 5 and 6 and Appendix F of NFPA 30, Flammable and Combustible Liquids Code.

Technical Committee on Storage & Warehousing of Containers & Portable Tanks This Committee shall have primary responsibility for documents or portions of documents on safeguarding against the fire and explosion hazards associated with the storage, warehousing, and display merchandising of flammable and combustible liquids in containers and in portable tanks whose capacity does not exceed 2500 liters (660 gallons). Responsible for Chapter 4 and Appendices D and E of NFPA 30, Flammable and Combustible Liquids Code.

Technical Committee on Tank Storage & Piping Systems

This Committee shall have primary responsibility for documents or portions of documents on safeguarding against the fire and explosion hazards associated with the storage of flammable and combustible liquids in fixed aboveground and underground tanks of any size, including tanks in buildings, except as specifically covered by other NFPA documents, and with the installation of piping systems for flammable and combustible liquids. This Committee shall also have primary responsibility for documents or portions of documents on safeguarding against the fire and explosion hazards associated with the storage of flammable and combustible liquids in portable tanks whose capacity exceeds 2500 liters (660 gallons). Responsible for Chapters 2 and 3 and Appendices B and C of NFPA 30, Flammable and Combustible Liquids Code, and NFPA 395, Standard for the Storage of Flammable and Combustible Liquids at Farms and Isolated Sites.

ATTACHMENT № A3

Technical Committee on Tank Storage & Piping Systems

This Committee shall have primary responsibility for documents or portions of documents on safeguarding against the fire and explosion hazards associated with the storage of flammable and combustible liquids in fixed aboveground and underground tanks of any size, including tanks in buildings or vaults. , except as specifically covered by other NFPA documents, and with the installation of piping systems for flammable and combustible liquids. This Committee shall also have primary responsibility for documents or portions of documents on safeguarding against the fire and explosion hazards associated with the storage of flammable and combustible liquids in portable tanks whose capacity exceeds 3000 liters (793 gallons). This Committee does not have responsibility for the installation of storage tanks for flammable and combustible liquids where specifically covered by other NFPA documents.

Responsible for Chapters 4 and 5 and Annexes B and C of NFPA 30, Flammable and Combustible Liquids Code.

ATTACHMENT № A4

FLAMMABLE AND COMBUSTIBLE

LIQUIDS CODE COMMITTEE

COMMITTEE MEMBERSHIP BALANCE SUMMARY

TCC on Flammable & Combustible Liquids - FLC-AAC NFPA 30 Members: 12 M: 2 (17%)* U: 1 (8%) Voting Alternates: 0 I/M: 0 L/C: 0 Alternates: 4 R/T: 1 (8%) E: 2 (17%) Non-Voting: 3 I: 2 (17%) SE: 4 (33%) Emeritus: 3

Task Group: 0 Hold List: 0 Balance: OK

*(containers: 1 liquids: 1) T/C on Fundamentals of Flammable & Combustible Liquids - FLC-FUN Members: 26 M: 9 (35%)* U: 4 (15%) Voting Alternates: 0 I/M: 0 L/C: 0 Alternates: 6 R/T: 2 (8%) E: 3 (12%) Non-Voting: 1 I: 5 (19%) SE: 3 (12%)

Emeritus: 0 Task Group: 0 Hold List: 6 Balance: M overbalanced by 1

*(containers: 1 liquids: 5 tanks: 1) T/C on Operations - FLC-OPS Members: 28 M: 8 (27%)* U: 5 (17%) Voting Alternates: 2 I/M: 0 L/C: 0 Alternates: 11 R/T: 1 (3%) E: 3 (10%) Non-Voting: 2 I: 6 (20%) SE: 7 (23%) Emeritus: 0


*(liquid handling equipment: 1 liquids: 7)

T/C on Storage & Warehousing of Containers & Portable Tanks - FLC-SWC Members: 30 M: 9 (30%)* U: 5 (17%) Voting Alternates: 0 I/M: 1 (3%)** L/C: 0 Alternates: 15 R/T: 1 (3%) E: 3 (10%) Non-Voting: 0 I: 6 (20%) SE: 5 (17%)

Emeritus: 0 Task Group: 0 Hold List: 5 Balance: OK

*(containers: 3 liquids: 3 safety cabinets & safety cans: 1) **(fire suppression systems: 2) T/C on Tank Storage & Piping Systems - FLC-TAN Members: 26 M: 4 (15%)* U: 8 (31%) Voting Alternates: 0 I/M: 0 L/C: 0 Alternates: 9 R/T: 1 (4%) E: 3 (12%) Non-Voting: 0 I: 3 (12%) SE: 7 (27%) Emeritus: 3


*(fire suppression systems: 0 tanks: 2 tank appurtenances: 1

tanks & tank appurtenances: 1 vaults: 0)

ATTACHMENT № A5

2011 ANNUAL REVISION CYCLE

PROCESS STAGE PROCESS STEP

DATES FOR TC

DATES FOR TCC

COMPLETION

DATE

VERIFY MATERIAL

IN FILE 1 PRELIMINARY 1.0 Notification of intent to enter cycle 7/10/09 7/10/09

2 REPORT ON PROPOSALS

(ROP)

2.1 Proposal closing date 11/24/09* 11/24/09*

*

2.2 Final date for ROP meeting 2/26/10 2/5/10 2.3 Final date for mailing TC ballots 3/19/10 2/19/10 2.4 Receipt of (TC) ballots by staff liaison 4/23/10 3/12/10 2.5 Receipt of TC recirculation ballots 5/7/10 3/19/10 2.6 Final date for TCC meeting 4/16/10 2.7 Final date for mailing TCC ballots 4/23/10 2.8 Receipt of TCC ballots 5/14/10 2.9 Receipt of TCC recirculation ballots 5/21/10 2.10 Final copy (w/ ballot statements) to Secretary, Standards Council

5/14/10 5/28/10

2.11 Completion of Reports 5/21/10 6/4/10 2.12 ROP Published and Posted 6/25/10 6/25/10

3 REPORT ON COMMENTS

(ROC)

3.1 Comment closing date 9/3/10 9/3/10 3.2 Final date for ROC meeting 11/5/10 10/8/10 3.3 Final date for mailing TC ballots 11/19/10 10/22/10 3.4 Receipt of (TC) ballots by staff liaison 12/3/10 11/12/10 3.5 Receipt of TC recirculation ballots 12/10/10 11/19/10 3.6 Final date for TCC meeting 12/17/10 3.7 Final date for mailing TCC ballots 12/22/10 3.8 Receipt of TCC ballots 1/14/11 3.9 Receipt of TCC recirculation ballots 1/21/11 3.10 Final copy (w/ ballot statements) to Secretary, Standards Council

12/22/10 1/28/11

3.11 Completion of Reports 1/14/11 2/4/11 3.12 ROC Published and Posted 2/25/11 2/25/11

TECH SESSION PREPARATION &

ISSUANCE OF CONSENT

DOCUMENTS

4.1 Notice of Intent to Make a Motion (NITMAM) Closing Date

4/8/11 4/8/11

4.2 Posting of Filed NITMAM 5/6/11 5/6/11 4.3 Council Issuance Date for Consent Documents 5/31/11 5/31/11 4.4 Appeal Closing Date for Consent Documents 6/15/11 6/15/11

TECHNICAL SESSION

5.0 Association Meeting for Documents with Certified Amending Motions

6/12-16/11 6/12-16/11

APPEALS & ISSUANCE OF DOCUMENTS

W/CAMS

6.1 Appeal closing date for Documents with Certified Amending Motions

7/6/11 7/6/11

6.2 Council issuance for Documents with Certified Amending Motions

8/4/11 8/4/11

* Proposal Closing Dates may vary according to documents and schedules for Revision Cycles may change. Please check the NFPA website (www.nfpa.org) for the most up-to-date information on proposal closing dates and schedules.

Report on Proposals – June 2011 NFPA 30_______________________________________________________________________________________________30- Log #CP18 FLC-TAN

_______________________________________________________________________________________________Technical Committee on Tank Storage and Piping Systems,

Review entire document to: 1) Update any extracted material by preparing separate proposals todo so, and 2) review and update references to other organizations documents, by preparing proposal(s) as required.

To conform to the NFPA Regulations Governing Committee Projects.

4Printed on 11/24/2009

Report on Proposals – June 2011 NFPA 30_______________________________________________________________________________________________30- Log #81 FLC-TAN

_______________________________________________________________________________________________Richard S. Kraus, PSC Petroleum Safety Consultants / Rep. American Petroleum Institute

Revise text to read as follows:21.4.1.2 (3) Aboveground storage of Class IIIB liquids at temperatures below their flash points in areas not exposed to

a spill or leak of Class I liquid or Class II liquid21.4.1.2 (4) Storage of Class IIIB liquids at temperatures below their flash points inside a building protected by an

approved automatic fire extinguishing system.This change prohibits storage of Class IIIB liquids in combustible tanks if Class IIIB has flammable

liquid hazards

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Revise text to read as follows:21.4.1.4. Tanks shall be permitted to have combustible or noncombustible linings. The choice selection, specification

and type of the lining material and its required thickness shall depend on the properties of the liquid to be stored. Shouldthere be a change in the characteristics of the liquid to be stored, a management of change hazard analysis shall beconducted to assure that the lining and new material are compatible.

This change provides more specific requirements for choice of lining and provides for a hazard reviewwhen stored materials change

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_______________________________________________________________________________________________Bob Eugene, Underwriters Laboratories Inc.

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_______________________________________________________________________________________________Jon Nisja, Northcentral Regional Fire Code Development Committee

Add a new section to read as follows:Atmospheric storage tanks shall be vented to prevent the development of vacuum or pressure that can distort

the roof of a cone roof tank or that exceeds the design pressure of other atmospheric tanks when filling or emptying thetank or because of atmospheric temperature changes.

This requirement shall apply to primary tanks, and each primary tank compartment of a compartmentedtank.

The code does not specifically indicate where the normal vents are to be installed, and it has beenreported that some jurisdictions are requiring normal vents to be provided in the interstitial space of secondarycontainment tanks. The requirement is being proposed for this section so it can apply to both aboveground andunderground tanks.

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Revise text to read as follows:21.4.5.3 Where tanks are not designed in accordance with standards of the American Petroleum Institute; the

American Society of Mechanical Engineers; ASTM International; or Underwriters Laboratories, Inc; or if corrosion isanticipated beyond that provided for in the design formulas or standards used, degradation shall be compensated for byproviding additional tank material thickness or by application of protective coatings or linings An engineering analysisshall be conducted to determine the proper requirements for said compensation.

This change provides for clarity that it is the tank material and not the lining or coating that needs to bethicker and also requires an engineering analysis to determine the correct remedy..

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New text to read as follows:21.5.1.1 An approved listing mark on a tank shall be considered to be evidence of compliance with this requirement.

Tanks not so marked shall be tested before they are placed into service in accordance with the requirements for testingin the codes listed in 21.4.2.1.1, 21.2.1.1.2, 21.4.2.2.1; or 21.4.2.3.1. Upon completion of satisfactory testing, anapproved listing mark shall be placed on the tank and test results shall be recorded in the facility tank file.

This change provides for recording testing to avoid future questions as to the tank’s listing. . .

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New text to read as follows:18.5.3 Exhaust from the room shall be vented conducted directly to a safe area at the exterior of the building and shall

not be recirculated.This change provides for safe ventilation

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Revise text to read as follows:21.6. Fire and Hazardous Exposure Prevention and Control.

This change in title provides for changes proposed for this section covering hazardous toxic materialreleases

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Revise text to read as follows:21.6.1.1 This section shall apply to the commonly recognized management techniques and fire and hazardous

exposure control methods used to prevent or minimize the loss from fire or explosion or hazardous release in tankstorage facilities. The wide range in size, design and location of tank storage facilities shall preclude the inclusion ofdetailed fire and hazard exposure control methods applicable to all such facilities.

This change provides for management of hazardous liquid and vapor releases

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Revised text to read as follows:21.6.1 2 Tank storage facilities shall have establish and implement fire and hazardous material prevention and control

procedures and measures for life safety, for minimizing property loss within and outside of the facility, and for reducingfire exposure to personnel inside and outside the facility and adjoining facilities resulting form fire or explosion orhazardous releases. .

This change covers requirements for hazardous material releases as well as requiring procedures andmeasures for control of fires, explosion and releases.

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Revise text to read as follows:21.6.3 Management of Fire, Explosion and Exposure Hazards. The extent of fire, explosion and hazardous release

prevention and control procedures and measures provided for tank storage facilities shall be determined by anengineering evaluation of the installation and operation, followed by the application of sound recognized fire, explosionand release prevention and process engineering principles. The evaluation shall include, but not be limited to thefollowing:(1) Analysis of fire, exposure and explosion hazards of the facility.(2) and (3) NO CHANGE

This change covers requirements for explosions and hazardous material releases as well as requiringprocedures and measures for control of fires, explosion and releases.

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Revise text to read as follows:21.6.5.1 An emergency plan, consistent with the available equipment, resources and personnel, shall be established

and implemented to respond to fires, explosions, hazardous releases and other emergencies. The plan shall addressthe following:(1) Procedures to be use in case of fire, explosion or hazardous release, such as including, but not limited to,

sounding the alarm, notifying the fire department, evacuating personnel, controlling and mitigating the explosion orrelease and controlling and extinguishing the fire.(2) Appointing and training of personnel to carry out fire safety emergency response duties.(3) Maintenance of fire protection, spill control and containment and other emergency response equipment.(4) Conducting holding fire emergency response drills(5) ((6) Alternate measures for the safety of personnel while any fire protection or other emergency response equipment is

shut down or inoperative.This change covers requirements for explosions and hazardous releases as well as requiring

emergency response requirements

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Revise text to read as follows:21.6.5.2 Personnel responsible for .the inspection, maintenance, use and operation of fire protection and emergency

response equipment shall be trained and qualified, in the use of and be able to demonstrate knowledge of theinspection, maintenance, use and operation of that equipment. Refreshed training in the use or operation of fireprotection and emergency response equipment shall be conducted at least annually.

This change covers requirements for inspection and maintenance in addition to use and operation. Itadds emergency response equipment in addition to fire protection. .

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Revise text to read as follows:21.6.5.3 Planning of effective fire and hazardous exposure control measures shall be coordinated with local emergency

response agencies and shall include, but not be limited to, the identification of all tanks by location, contents, size, type,and hazard identification as required by 21.7.2.1.

This change adds control of hazards in addition to fire and adds type of tank to the identificationrequirements as fire fighting measure will differ depending on the construction of the tank. .

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Revise text to read as follows:21.6.5. 4 Procedures shall be established and implemented to provide for safe shutdown of tank storage facilities

under emergency conditions and for safe return to service following the emergency. These procedures shall providerequirements for periodic training of personnel and scheduled inspection and testing of associated alarms, interlocksand controls.

This change adds implementation of procedures and provides for safe return to service.

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Revise text to read as follows:21.6.5. 5 Emergency procedures shall be kept available in an operating area. The procedures shall be reviewed and

updated whenever conditions change as required in 6.4.2, Management of Change.This change references management of change requirements for better control of change

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Revise text to read as follows:21.6.6 Inspection and Maintenance of Fire Protection and Emergency Response Equipment .

This change in title reflect proposed changes to section 21.6.6

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Revise text to read as follows:21.6.6.1 All fire protection and emergency response equipment shall be maintained, inspected and tested in

accordance with regulatory requirements, standard practices and equipment manufacturer’s recommendations. .This change adds emergency response equipment to the requirements

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Revise text to read as follows:21.6.6.2 Maintenance and operating procedures and practices at tank storage facilities shall be established and

implemented to control leakage and prevent spillage and release of liquids.This change provides for establishing and implementing procedures (in addition to practices) and to

prevent release of liquids (other than a spill)

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Revise text to read as follows:21.6.6.4 Accessways established for movement of personnel shall be maintained clear of obstructions to permit

evacuation and access for manual fire fighting and emergency response in accordance with regulatory requirementsand the emergency plan.

This change provides for an emergency other than fire

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Revise text to read as follows:21.7.1.1 Facilities with aboveground tanks that receive and transfer Class I liquids form mainline pipelines or marine

vessels shall establish and follow implement formal written procedures in accordance with API 2350,or similar industry standards to prevent overfilling of tanks utilizing one of the

following methods of protection: ( )This change moves the requirements for compliance with industry standards from the annex to the

code, making it mandatory

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Revise text to read as follows:21.7.2.2 Security for Unsupervised Storage Tanks. Unsupervised isolated aboveground storage tanks shall be

secured and shall be marked to identify the fire and exposure hazards of the tank and the tank’s contents to the generalpublic.

This change adds identification for hazards other than fire such as defined by NFPA 704

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Revise text to read as follows:21.7.3.2 Operating Instructions. Operating instructions or procedures to be followed in a flood emergency shall be

established and made available for implementation by personnel identified in 21.7.3.3This change required establishing the procedures so they can be implemented

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Revise text to read as follows:21.7.3.3 Personnel Training. Personnel relied on to carry out activate and perform flood emergency procedures shall

be trained in their implementation and shall be informed of the location and operation of valves and other controls andequipment necessary to effect the intent of these procedures. requirements. Personnel shall also be trained andqualified in the procedures required to place the facility back into service following a flood emergency.

This change requires establishing and implementing the procedures by trained personnel. And addscontrols in addition to valves and equipment.

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Revise text to read as follows:21.7.4.3.3 Permanent Closure in Place. Underground tanks shall be permitted to be permanently closed in place if

approved by the authority having jurisdiction. Written procedures shall be established and implemented to assure that allof the following requirements shall be met:

This change required establishing and implementing written procedures

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Revise text to read as follows:21.8.8 Facilities with aboveground storage tanks shall establish and implement a procedure for checking and removal

of water from the bottom of storage tanks that contain nonmiscible liquids or water reactive liquids.This provides for implementation of procedures not just establishment and also provides for water

removal from tanks containing liquids that are water reactive.

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_______________________________________________________________________________________________Kendall Crawford, Houston, TX

New text to read as follows:Add a new 21.8.9 and accompanying annex item to read:“21.8.9* Overfill protection and prevention systems and tank level gauging systems shall be inspected and maintained

in accordance with manufacturer’s specifications to ensure their proper operation as intended by the operationalprocedures of the facility.A.21.8.9 Refer to API 2350, Overfill Protection for Storage Tanks in Petroleum Facilities, for appropriate information on

such systems.”Recent overfill incidents that have led to serious fires, e.g., the Dec 11, 2005 spill, explosion and fire in

Buncefield UK, and more recent incidents, demonstrate the need for proper maintenance and oversight of automatictank gauging systems and overfill protection systems so that they can function as intended with called upon to do so.

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Revise and add new text to read as follows:21.4.1.2 (3) Aboveground storage of Class IIIB liquids at temperatures below their flash points in areas not exposed to

a spill or leak of Class I liquid or Class II liquid21.4.1.2 (4) Storage of Class IIIB liquids at temperatures below their flash points inside a building protected by an

approved automatic fire extinguishing system.This change prohibits storage of Class IIIB liquids in combustible tanks if Class IIIB has flammable

liquid hazards

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Revise and add new text to read as follows:22.4.1.6 Tanks storing Class IIIB stable liquids shall be located in accordance with table 2.4.1.622.4.1.6.1 Tanks storing Class IIIB liquids shall be located in accordance with 22.4.1.1 if when located within

the same diked area as, or within the drainage path of, a tank storing a Class I or Class II liquid

22.4.1.6.2 Tanks storing Class IIIB liquids at temperatures at or above their flash points shall be located in accordancewith 22.4.1.1

This (6.1) changes the exception to a requirement and also (6.2) adds requirements for Class IIIBliquids at high temperatures.

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Report on Proposals – June 2011 NFPA 30_______________________________________________________________________________________________30- Log #CP1 FLC-TAN

_______________________________________________________________________________________________Technical Committee on Tank Storage and Piping Systems,

Clarify the text that was the subject of the following Formal Interpretation.Does the term “sum of adjacent tank diameters” refer to the diameter of one tank plus the diameter of

a single adjacent tank?Yes.

Where there are more than two tanks adjacent to each other, is the “sum of adjacent tank diameters”determined for each pair of tanks, as opposed to adding the diameters of all tanks present?

Yes.The Regulations Governing Committee Projects require that a proposal be processed to clarify the text

of a document on which a Formal Interpretation has been issued.

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Revise text to read as follows:22.4.2.1 Tanks storing Class I, Class II or Class IIIA stable liquids shall be separated by the distances given in Table

22.4.2.1This corrects an error in the text .Table 22.4.2.1 covers Class IIIA not Class III

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Revise text to read as follows:22.4.2.1.2 Tanks used only for storing Class IIIB liquids at temperatures below their flash points shall not be required

This provides for proper spacing for Class IIIB liquids stored at higher temperatures.

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New text to read as follows:22.4.2.1.3 Tanks used only for storing Class IIIB liquids at temperatures at or above their flash points shall be

separated by the distances given in Table 22.2.4.2.1 for Class I or Class II liquids.This provides for proper spacing for Class IIIB liquids stored at higher temperatures.

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Revise text to read as follows:22.4.2.4 The minimum horizontal separation between an LP gas container and a Class I, Class II or Class IIIA liquid

storage tank, or a storage tank containing Class IIIB liquid at temperatures at or above its flash point, shall be 20 ft (6m).

This delineates proper spacing for Class IIIB liquids stored at temperatures at or above their flashpoints

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Revise text to read as follows:22.5.2.3 Where tanks storing Class I, Class II or Class IIIA liquid storage tank, or a storage tank containing Class IIIB

liquid at temperatures at or above its flash point, are supported above their foundations, tank supports shall be ofconcrete, masonry or protected steel.


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Revise text to read as follows:22.5.2.4 Steel support structures or exposed piling for tanks storing Class I, Class II or Class IIIA liquid storage tank,

or a storage tank containing Class IIIB liquid at temperatures at or above its flash point, shall be protected by materialshaving a fire resistance rating of not less than 2 hours.


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Revise text to read as follows:22.7.1.1.3 Tanks storing Class IIIB liquids at temperatures below their flash points that are larger than 12,000 gal

(45,400 L) capacity ……… .This delineates proper spacing for Class IIIB liquids stored at temperatures below their flash points

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_______________________________________________________________________________________________Samuel A. Rodgers, Honeywell, Inc.

Revise text to read as follows:22.7.3.2.2 The wetted area of a the tank or storage vessel shall be calculated as follows:(1) Spheres or Spheroids - Fifty-five percent of the total exposed area or the exposed area to a height of 30 ft (9m)

above grade, whichever is greater of a sphere or spheroid(2) Horizontal Tanks - Seventy-five percent of the total exposed area or the exposed area to a height of 30 ft (9m)

above grade, whichever is greater of a horizontal tank(3) Vertical Tanks - One hundred percent of the exposed shell and floor area, plus one hundred percent of the vertical

shell to a height of 30 ft (9m) above grade of a rectangular tank, but excluding the top surface of the tank(4) The first 30 ft (9 m) above grade of the exposed shell area of a vertical tank

The current text is confusing to the user and does not clearly incorporate the limitation of 30 ft abovegrade into the exposed areas of all tankage. NFPA-30 is in substantial agreement with API-2000 in areas except thewetted area determination. This change would retain the current conservatism for the bottom of a vertical tank, whileclearly applying the concept that fire heat loads can affect the upper exposed areas of smaller vessels, as often found inchemical facilities.

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Revise text to read as follows:22.8 Fire protection for Aboveground Storage Tanks. A fire extinguishing system in accordance with an applicable

NFPA standard shall be provided or shall be available for vertical atmospheric fixed roof storage tanks larger than50,000 gal (190m3) capacity storing Class I liquids or storing Class II or Class III liquids at temperatures at or abovetheir flash points, if located in a congested area where there is an unusual exposure hazard to the tank from adjacentproperty or to adjacent property from the tank.

This delineates proper protection for Class Ii and III liquids stored at temperatures above their flashpoints

137Printed on 11/24/2009



Revise text to read as follows:22.11. Control of Spills from Aboveground Storage Tanks. Every tank that contains a Class I Class II or Class IIIA

liquid, or a hazardous liquid shall be provided with means to prevent an accidental release of liquid from endangeringimportant facilities and adjoining property or from reaching waterways, Such means shall meet the requirements of22.11.1, 22.11.2, 22.11.3, or 22.11.4 whichever is applicable.

This delineates proper protection for hazardous liquids other than flammable and combustible.

138Printed on 11/24/2009



New text to read as follows:22.11. 1.5 (new) Where the potential exists for a toxic exposure as a result of an accidental release of a hazardous

liquid material the drainage and impounding shall provide for containment of vapors to control such exposure .This provides for proper protection for exposures to hazardous liquids other than flammable and

combustible liquids

139Printed on 11/24/2009



Revise text to read as follows:22.11. 2.6.3.5 Whenever two or more tanks storing Class I liquids, or storing Class Ii or Class III liquids at

temperatures at or above their flash points, or a hazardous liquid, any one of which is over 150 ft (45 m) in diameter arelocated in a common diked area, intermediate dikes shall be provided between adjacent tanks to hold at leats 10percent of the capacity of the tank so enclosed not including the volume displaced by the tank.

This provides for proper protection for exposures to hazardous liquids and Class II and III liquids attemperatures above their flash points

140Printed on 11/24/2009



Revise text to read as follows:22.13.4 Filling and emptying connections for Class I, Class II and Class IIIA liquids and for Class IIIB liquids at

temperatures at or above their flash points that are connected and disconnected shall be located outside of buildings ata location free from any source of ignition.

This provides for proper protection for exposures to Class IIIB liquids at temperatures above their flashpoints

141Printed on 11/24/2009



Revise text to read as follows:22.13.4.1 Such connections shall be located not less than 5 ft (1.5 m) away from any building opening so that vapors

will not be trapped by eaves or other obstructions and shall be at least 5 ft (1.5 m) from building openings and at least15 ft (4.5 m) from powered ventilation air intake devices.

This provides for proper protection as required by 27.8.1.1

142Printed on 11/24/2009



Revise text to read as follows:22.17.3. Each tank constructed of other materials other than steel shall be inspected and maintained in accordance

with manufacturers instructions and applicable standards.This provides for clarity

143Printed on 11/24/2009



Revise text to read as follows:23.1 (1) The storage of flammable, combustible and hazardous liquids as defined in 3.30 and Chapter 4 in fixed

underground tanks.

This provides for inclusion of water miscible and unstable liquids and other liquids as defined in 3.30

144Printed on 11/24/2009



Revise text to read as follows:23.4.2 The distance from any part of a tank storing Class I liquids, or Class II or Class III liquids at temperatures at or

above their flash points to the nearest wall of any basement or pit shall not be less than 1 ft (0.3 m) and not less than 3 ft(0.9 m) to any property line that can be built upon not less than 3 ft (0.9 m).

This provides for inclusion Class II and II liquids when they are similar to Class I (and replaces thedangling participle).

145Printed on 11/24/2009



Revise text to read as follows:23.4.3 The distance from any part of a tank storing Class II or Class III liquids at temperatures below their flash points

to the nearest wall of any basement, pit or property line shall not be less than 1 ft (0.3 m)This provides for clarity vs 23.4.2

146Printed on 11/24/2009



Revised text to read as follows:23.13.5 Underground tanks for Class I liquids, hazardous liquids, and for Class II and Class III liquids delivered or

stored at temperatures at or above their flash points having a capacity of more than 1000 gals (3800 L) shall beequipped with a tight fill device for connecting the fill hose to the tank.

This provides for protection when filling hazardous chemicals or heated products.

147Printed on 11/24/2009



Revised text to read as follows:23.13.6 Filling, emptying and vapor recovery connections for Class I, Class II and Class IIIA liquids, hazardous liquids

and for Class IIIB liquids delivered or stored at temperatures at or above their flash points that are connected anddisconnected shall be located outside of buildings at a location free from any source of ignition and not less than 5 ft (1.5m) from any building opening or air intake.

This provides for protection when filling hazardous chemicals or heated Class IIIB products andprovides for protection from intake of vapors by fresh air systems.

148Printed on 11/24/2009



Revise text to read as follows:23.14.1 Water Ballast. At locations where an ample and dependable water supply is available, underground tanks

containing flammable, combustible or hazardous liquids shall be placed so that more than 70 percent of their storagecapacity will be submerged at the maximum flood stage. Tanks shall be so anchored, weighted or secured as to preventmovement when filled or loaded with water and submerged by floodwater to the established flood stage.

This provides for protection when filling hazardous chemicals and clarity by splitting into two sentences

149Printed on 11/24/2009



Revise text to read as follows:24.1.2 This chapter shall also apply to installations of aboveground storage tanks storing hazardous liquids and Class

IIIB liquids in storage tank buildings where Class IIIB liquids are heated up to at temperatures at or above their flashpoints.

This provides for storing hazardous liquids and indicated Class IIIB at or above, not “up to” flash points

150Printed on 11/24/2009



Revise text to read as follows:24.4.9 Class I liquids, hazardous liquids and Class II and Class IIIA liquids heated at or above their flash points shall

not be stored in basements. .This provides for safely storing hazardous liquids and includes all Class III heated liquids not just Class

IIIA

151Printed on 11/24/2009



Revise text to read as follows:24.5.3 Where Class I liquids, hazardous liquids and Class II and Class III liquids heated at or above their flash points

are stored above grade within buildings with basements or other belowground areas into which flammable or hazardousvapors can travel, such belowgrade areas shall be provided with mechanical ventilation designed to prevent theaccumulation of flammable or hazardous vapors. Enclosed storage tank pits shall not be considered basements.

This provides for safely storing hazardous liquids and includes Class II and III heated liquids

152Printed on 11/24/2009



153Printed on 11/24/2009



Revise text to read as follows:24.6.2.3 Where the need is indicated by the hazards of storage or exposure as determined by 21.6.3, fixed protection

shall be required utilizing approved foam, foam-water sprinkler systems, sprinkler systems, water spray systems, delugesystems, gaseous extinguishing systems, dry chemical extinguishing systems, fire resistive materials or a combinationof these

This includes all of the systems referenced in 24.6.2.4

154Printed on 11/24/2009



155Printed on 11/24/2009



Revise text to read as follows:24.10.1 Storage tank buildings storing Class I liquids, hazardous liquids or Class II or Class IIIA liquids at

temperatures at or above their flash points shall be ventilated at a rate ………………….

This includes hazardous liquids and includes all heated Class III liquids This changes corresponds toproposed new section 18.5.1.1

156Printed on 11/24/2009



Revise text to read as follows:24.10.3. Ventilation shall be accomplished by natural or mechanical ventilation, with discharge or exhaust to a safe

location outside the building so that vapors will not be trapped by eaves or other obstructions and shall be at least 5 ft(1.5 m) from building openings and at least 15 ft (4.5 m) from powered ventilation air intake devices.

This includes safe venting equirements from 28.8.1.1

157Printed on 11/24/2009



Revise text to read as follows:24.10.3.1 Recirculation of exhaust air shall be permitted only when it is monitored continuously using a fail safe

system that is designed to automatically sound an alarm, stop recirculation and provide full exhaust to the outside in theevent that a vapor air mixtures having a concentrations over 25 of the lower flammable limit or a hazardous toxicatmosphere that is above a predetermined limit is detected.

This includes requirements for hazardous atmospheres

158Printed on 11/24/2009



Revise text to read as follows:24.10.7 (2). A vapor detection system set to sound a warning alarm at a constantly attended location at 25 percent of

the lower flammable limit or at a predetermined level of a hazardous atmosphere, and to start the mechanical ventilationsystem.

This adds requirements for hazardous atmospheres

159Printed on 11/24/2009



Revise text to read as follows:24.13.5 Vents shall terminate at a safe area outside the building.

This adds requirements for safely venting hazardous vapors

160Printed on 11/24/2009



Revise text to read as follows:24.14.3 Each liquid transfer connection on any tank storing Class I or Class II liquids, or hazardous liquids or Class III

liquids heated at or above their flash points inside buildings shall be provided with one of the following

This adds requirements for safely transferring heated Class III liquids and hazardous liquids

161Printed on 11/24/2009



Revise text to read as follows:24.14.6 Openings for manual gauging of Class I or Class II liquids, or hazardous liquids or Class III liquids heated at or

above their flash points shall be provided with a vaportight cap or cover that shall be kept closed when not in use.This adds requirements for safely protecting gauging openings for heated Class III liquids and

hazardous liquids

162Printed on 11/24/2009



Revise text to read as follows:24.14.8 Tanks storing Class I, Class II, or Class IIIA liquids, or hazardous liquids inside buildings shall be equipped

with a device or other means shall be provided, to prevent overflow into the building.This adds requirements for safely storing hazardous liquids

163Printed on 11/24/2009



164Printed on 11/24/2009



Revise text to read as follows:25.5.1.1 The top of an aboveground vault that contains a tank storing Class I or Class II liquid, or Class III Liquid at

temperatures at or above its flash point, shall be constructed of noncombustible material and shall be designed to beweaker than the walls of the vault to ensure that the thrust of any explosion inside the vault is directed upward beforedestructive internal pressure develops within the vault.

This adds requirements for Class IIIB liquids stored at high temperatures.

165Printed on 11/24/2009



Revise text to read as follows:25.5.1.2 The top of an at-grade or below-grade vault that contains a tank storing Class I liquid or a Class II or Class III

liquid at a temperature at or above its flash point, shall be designed to relieve or contain the force of any explosionoccurring inside the vault

This adds requirements for Class III liquids stored at high temperatures.

166Printed on 11/24/2009



Revise text to read as follows:25.15.2 The vapor detection system shall sound an alarm when the system detects vapors that reach or exceed 25

percent of the lower flammable limit of the liquid stored or reach a predetermined level of a hazardous atmosphere,This adds requirements for hazardous atmospheres for similar requirements

167Printed on 11/24/2009



Revise text to read as follows:27.1.1 This chapter shall apply to the design, installation, testing, operation and maintenance of piping systems for

flammable, hazardous and combustible liquids or vaporsThis adds requirements for hazardous liquids in pipes

168Printed on 11/24/2009



Revise text to read as follows:27.3.2 Piping systems shall be maintained liquid tight. A piping system that has leaks that constitute a hazard shall be

repaired in a manner acceptable to the authority having jurisdiction or it shall be emptied of liquid, vapor freed and shallno longer be used. repaired in a manner acceptable to the authority having jurisdiction

This adds requirements for vapor freeing and no longer using leaky pipes

169Printed on 11/24/2009



Revise text to read as follows:27.5.3.2 Where such joints are used aboveground, either the piping shall be secured to prevent disengagement of the

fitting or the piping system shall be designed that any spill or leak resulting from disengagement will not expose persons,important buildings, or structures and controlled by remote valves.

This adds requirements for leaks (see definitions) in addition to spills.

170Printed on 11/24/2009



Revise text to read as follows:27.7.3.1 Piping that could contain a Class I, Class II, or Class IIIA liquid or vapor or a Class IIIB liquid at a temperature

at or above its flash point, shall not be tested using air.This adds requirements for Class IIIB heated liquids

171Printed on 11/24/2009



Revise text to read as follows:27.8.1.1 Where the outlets for vent pipes for tanks storing class I liquids, or hazardous liquids, or class II or class III

liquids at temperatures at or above their flash points are adjacent to buildings or public ways, they shall be located sothe vapors are released at a safe point outside of buildings and not less than 12 ft (3.6 m) above the adjacent groundlevel

This adds Class II and Class III heated liquids

172Printed on 11/24/2009



Revise text to read as follows:27.8.1.3 Vent outlets shall be located so that vapors will not be trapped by eaves or other obstructions and shall be at

least 5 ft (1.5 m) from building openings and at least 15 ft (4.5 m) from powered ventilation air intake devices.This adds underground tank venting requirements from 27.8.2

173Printed on 11/24/2009



Revise text to read as follows:27.8.2.13 Vent piping for tanks storing class I liquids, or hazardous liquids or class II or III liquids at temperatures at or

above their flash points, shall not be manifolded with vent piping for tanks storing hazardous liquids or class II or class IIIliquids at temperatures below their flash points, unless positive means are provided to prevent the following:(1) Vapors of class I liquids or of Class II or Class III liquids at temperatures at or above their flash points from entering

tanks storing hazardous liquids or Class II or class III liquids at temperatures below their flash points

(3) Possible change in classification of the less volatile or less hazardous liquidThis adds tank venting requirements for Class II and III liquids that are heated and for hazardous

liquids

174Printed on 11/24/2009



New text to read as follows:A 21.7.4.3.6 Disposal of Tanks:Tanks that have contained leaded products or other toxic or hazardous materials shall not be recycled unless cleaned,

detoxified and declared to be hazard free. Tanks that have contained leaded products shall not be used or recycled forthe subsequent storage of food or liquids intended for human or animal consumption unless such tanks have been firstcleaned down to bare metal and certified to be lead free

This new text provides precautions for tanks that contained leaded products and other hazardousmaterials

202Printed on 11/24/2009

Report on Proposals – June 2011 NFPA 30_______________________________________________________________________________________________30- Log #18


Revise text as follows:A.22.5.2.4 For further information, see ASTM E 119, Standard Test Methods for Fire Tests of Building Construction

and Materials, and ANSI/UL 1709, Standard for Rapid Rise Fire Tests of Protection Materials for Structural Steel.The ANSI designation should be added to UL 1709 to reflect the ANSI approval of the referenced

standard.

203Printed on 11/24/2009



204Printed on 11/24/2009



Revise text as follows:A.23.3.4(1) Acceptable design standards for cathodic protection systems include the following:(1) API RP 1632, Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems(2) CAN/ULC-S603.1M, Standard for Galvanic External Corrosion Protection Systems for Steel Underground Tanks for

Flammable and Combustible Liquids(3) STI-P3, Specification and Manual for External Corrosion Protection of Underground Steel Storage Tanks(4) NACE RP-0169, Recommended Practice, Control of External Corrosion on Underground or Submerged Metallic

Piping Systems(5) NACE RP-0285, Recommended Practice, Corrosion Control of Underground Storage Tank Systems by Cathodic

Protection(6) ANSI/UL 1746, Standard for External Corrosion Protection Systems for Steel Underground Storage Tanks, Part 1(7) STI RP 892, Recommended Practice for Corrosion of Underground Piping Networks Associated with Liquid Storage

and Dispensing SystemsThe ANSI designation should be added to UL 1746 to reflect the ANSI approval of the referenced

standard. The title of CAN/ULC-S603.1 has been revised to reflect the update to the most recent edition.

205Printed on 11/24/2009



Revise text as follows:A.27.4.3.2 For further information, see ASTM E 119, Standard Test Methods for Fire Tests of Building Construction

and Materials, ANSI/UL 263 Standard for Fire Tests of Building Construction and Materials and ANSI/UL 1709,Standard for Rapid Rise Fire Tests of Protection Materials for Structural Steel.

ANSI/UL 263 provides similar performance to ASTM E 119 and are jointly referenced in other NFPApublications. See NFPA 5000-7.2.3.2.20 for an example. The ANSI designation should be added to UL 1709 to reflectthe ANSI approval of the referenced standard.

206Printed on 11/24/2009



207Printed on 11/24/2009

bbenedetti

Text Box

ATTACHMENT No. A7

bbenedetti

Text Box

ATTACHMENT No. A8

bbenedetti

Text Box

ATTACHMENT No. A9

ATTACHMENT № A10

Replacement for 22.7.3.5 Reduction Factors for Emergency Relief Venting

22.7.3.5 For tanks containing stable liquids, the required emergency relief venting capacity determined by 22.7.3.2, 22.7.3.3, or 22.7.3.4 shall be permitted to be multiplied by one of the reduction factors shown in Table 22.7.3.5 when protection is provided as indicated. Only one reduction factor shall be used for any one tank. Protection measures shall meet 22.7.3.5 (1) through (4), as appropriate. (1) Drainage shall meet the requirements of 22.11.1 and the reduction factor shall only be applicable to tanks with wetted area greater than 200 ft2 (19 m2). (2) A manually actuated water spray protection system shall meet the requirements of NFPA 15, Standard for Water Spray Fixed Systems for Fire Protection and shall include drainage that meets the requirements of 22.11.1. (3) An automatically actuated water spray system shall meet the requirements of NFPA 15, Standard for Water Spray Fixed Systems for Fire Protection. (4) Tank shell insulation shall meet the requirements of 22.7.3.8. 22.7.3.5.1* Water-miscible liquids whose heats of combustion and rates of burning are equal to or less than those of ethyl alcohol shall be allowed an additional 50 percent reduction in the required emergency relief venting capacity, as given in the appropriate column of Table 22.7.3.5. Drainage shall not be required to obtain this reduction. In no case shall the combined reduction factor be less than 0.15. There shall be no fire exposure from liquids other than from those liquids covered by this provision. 22.7.3.5.2* Liquids whose heats of combustion and rates of burning are equal to or less than those of ethyl alcohol (ethanol), but are not water-miscible shall be allowed an additional 50 percent reduction in the required emergency relief venting capacity, as given in the appropriate column of Table 22.7.3.5. No further reduction shall be allowed for protection by means of water spray. [Needs to be explained!] Drainage shall not be required to obtain this reduction. In no case shall the combined reduction factor be less than 0.15. There shall be no fire exposure from liquids other than from those liquids covered by this provision.

Table 22.7.3.5 Emergency Relief Venting Reduction Factors Stable Liquids,

water-miscible or non-water-miscible

Water-miscible Liquids that meet

22.7.3.5.1

Non-water-miscible Liquids that meet

22.7.3.5.2 Protection Measure(s)

NONE 1.0 0.5 0.5 Drainage alone 0.5 0.25 0.25

Manual water spray combined with drainage

0.3 0.15 0.3

Automatically-actuated water spray

0.3 0.15 0.3

Insulation alone 0.3 0.15 0.3 Manual or automatically-

actuated water spray combined with insulation

0.15 0.15

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