FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE COMMITTEE

Transcription

1 FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE COMMITTEE MEMORANDUM TO: FROM: NFPA 30 Technical Committee on Tank Storage and Piping Systems 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.

2 FLAMMABLE AND COMBUSTIBLE LIQUIDS CODE COMMITTEE 1. Call to Order. 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 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 (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, 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 secondarycontainment 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.

3 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 of NFPA 30; it applies to both underground and aboveground tanks. Revise NFPA 30, to require a vapor detection system only for Class I liquids. (Massachusetts State Fire Marshal s Office) NFPA 30, 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.

4 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.

5 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.

6 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.

7 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 Task Group: 0 Hold List: 3 Balance: OK *(liquid handling equipment: 1 liquids: 7)

8 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 Task Group: 0 Hold List: 4 Balance: OK *(fire suppression systems: 0 tanks: 2 tank appurtenances: 1 tanks & tank appurtenances: 1 vaults: 0)

9 2011 ANNUAL REVISION CYCLE ATTACHMENT A5 PROCESS DATES DATES STAGE PROCESS STEP FOR TC FOR TCC 1 PRELIMINARY 1.0 Notification of intent to enter cycle 7/10/09 7/10/09 COMPLETION DATE VERIFY MATERIAL IN FILE 2 3 REPORT ON PROPOSALS (ROP) REPORT ON COMMENTS (ROC) TECH SESSION PREPARATION & ISSUANCE OF CONSENT DOCUMENTS 2.1 Proposal closing date 11/24/09* 11/24/09* * 2.2 Final date for ROP meeting 2/26/10 2/5/ Final date for mailing TC ballots 3/19/10 2/19/ Receipt of (TC) ballots by staff liaison 4/23/10 3/12/ Receipt of TC recirculation ballots 5/7/10 3/19/ Final date for TCC meeting 4/16/ Final date for mailing TCC ballots 4/23/ Receipt of TCC ballots 5/14/ Receipt of TCC recirculation ballots 5/21/ Final copy (w/ ballot statements) to Secretary, Standards Council 5/14/10 5/28/ Completion of Reports 5/21/10 6/4/ ROP Published and Posted 6/25/10 6/25/ Comment closing date 9/3/10 9/3/ Final date for ROC meeting 11/5/10 10/8/ Final date for mailing TC ballots 11/19/10 10/22/ Receipt of (TC) ballots by staff liaison 12/3/10 11/12/ Receipt of TC recirculation ballots 12/10/10 11/19/ Final date for TCC meeting 12/17/ Final date for mailing TCC ballots 12/22/ Receipt of TCC ballots 1/14/ Receipt of TCC recirculation ballots 1/21/ Final copy (w/ ballot statements) to Secretary, Standards Council 12/22/10 1/28/ Completion of Reports 1/14/11 2/4/ ROC Published and Posted 2/25/11 2/25/ Notice of Intent to Make a Motion (NITMAM) Closing Date 4/8/11 4/8/ Posting of Filed NITMAM 5/6/11 5/6/ Council Issuance Date for Consent Documents 5/31/11 5/31/ 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 6.2 Council issuance for Documents with Certified Amending Motions 7/6/11 7/6/11 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 ( for the most up-to-date information on proposal closing dates and schedules.

10 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 to do 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. 4

11 30- Log #81 FLC-TAN (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 liquid (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 96

12 30- Log #82 FLC-TAN 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. Should there be a change in the characteristics of the liquid to be stored, a management of change hazard analysis shall be conducted 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 review when stored materials change 97

13 30- Log #179 FLC-TAN Bob Eugene, Underwriters Laboratories Inc. 98

14 30- Log #183 FLC-TAN Bob Eugene, Underwriters Laboratories Inc. 99

15 30- Log #27 FLC-TAN 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 the tank or because of atmospheric temperature changes. This requirement shall apply to primary tanks, and each primary tank compartment of a compartmented tank. The code does not specifically indicate where the normal vents are to be installed, and it has been reported that some jurisdictions are requiring normal vents to be provided in the interstitial space of secondary containment tanks. The requirement is being proposed for this section so it can apply to both aboveground and underground tanks. 100

16 30- Log #184 FLC-TAN Bob Eugene, Underwriters Laboratories Inc. 101

17 30- Log #83 FLC-TAN 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 is anticipated beyond that provided for in the design formulas or standards used, degradation shall be compensated for by providing additional tank material thickness or by application of protective coatings or linings An engineering analysis shall 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 be thicker and also requires an engineering analysis to determine the correct remedy.. 102

18 30- Log #84 FLC-TAN New text to read as follows: 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 testing in the codes listed in , , ; or Upon completion of satisfactory testing, an approved 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

19 30- Log #85 FLC-TAN New text to read as follows: 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 104

20 30- Log #30 FLC-TAN 105

21 30- Log #86 FLC-TAN Fire and Hazardous Exposure Prevention and Control. This change in title provides for changes proposed for this section covering hazardous toxic material releases 106

22 30- Log #87 FLC-TAN 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 tank storage facilities. The wide range in size, design and location of tank storage facilities shall preclude the inclusion of detailed fire and hazard exposure control methods applicable to all such facilities. This change provides for management of hazardous liquid and vapor releases 107

23 30- Log #88 FLC-TAN Revised text to read as follows: 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 reducing fire exposure to personnel inside and outside the facility and adjoining facilities resulting form fire or explosion or hazardous releases.. This change covers requirements for hazardous material releases as well as requiring procedures and measures for control of fires, explosion and releases. 108

24 30- Log #89 FLC-TAN 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 an engineering evaluation of the installation and operation, followed by the application of sound recognized fire, explosion and release prevention and process engineering principles. The evaluation shall include, but not be limited to the following: (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 requiring procedures and measures for control of fires, explosion and releases. 109

25 30- Log #90 FLC-TAN 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 address the 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 or release 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 110

26 30- Log #91 FLC-TAN 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 the inspection, maintenance, use and operation of that equipment. Refreshed training in the use or operation of fire protection and emergency response equipment shall be conducted at least annually. This change covers requirements for inspection and maintenance in addition to use and operation. It adds emergency response equipment in addition to fire protection.. 111

27 30- Log #92 FLC-TAN 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 This change adds control of hazards in addition to fire and adds type of tank to the identification requirements as fire fighting measure will differ depending on the construction of the tank.. 112

28 30- Log #93 FLC-TAN 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 provide requirements for periodic training of personnel and scheduled inspection and testing of associated alarms, interlocks and controls. This change adds implementation of procedures and provides for safe return to service. 113

29 30- Log #94 FLC-TAN 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 114

30 30- Log #95 FLC-TAN Inspection and Maintenance of Fire Protection and Emergency Response Equipment. This change in title reflect proposed changes to section

31 30- Log #96 FLC-TAN 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 116

32 30- Log #97 FLC-TAN 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) 117

33 30- Log #98 FLC-TAN 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 requirements and the emergency plan. This change provides for an emergency other than fire 118

34 30- Log #99 FLC-TAN 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 119

35 30- Log #100 FLC-TAN 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 general public. This change adds identification for hazards other than fire such as defined by NFPA

36 30- Log #101 FLC-TAN 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 This change required establishing the procedures so they can be implemented 121

37 30- Log #102 FLC-TAN 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 and equipment necessary to effect the intent of these procedures. requirements. Personnel shall also be trained and qualified 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 adds controls in addition to valves and equipment. 122

38 30- Log #103 FLC-TAN 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 all of the following requirements shall be met: This change required establishing and implementing written procedures 123

39 30- Log #104 FLC-TAN 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. 124

40 30- Log #177 FLC-TAN Kendall Crawford, Houston, TX New text to read as follows: Add a new and accompanying annex item to read: * 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 operational procedures of the facility. A 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 automatic tank gauging systems and overfill protection systems so that they can function as intended with called upon to do so. 125

41 30- Log #105 FLC-TAN Revise and add new text to read as follows: (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 liquid (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 126

42 30- Log #106 FLC-TAN Revise and add new text to read as follows: Tanks storing Class IIIB stable liquids shall be located in accordance with table Tanks storing Class IIIB liquids shall be located in accordance with 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 Tanks storing Class IIIB liquids at temperatures at or above their flash points shall be located in accordance with This (6.1) changes the exception to a requirement and also (6.2) adds requirements for Class IIIB liquids at high temperatures. 127

43 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. 128

44 30- Log #107 FLC-TAN Tanks storing Class I, Class II or Class IIIA stable liquids shall be separated by the distances given in Table This corrects an error in the text.table covers Class IIIA not Class III 129

45 30- Log #108 FLC-TAN 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. 130

46 30- Log #109 FLC-TAN New text to read as follows: 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 for Class I or Class II liquids. This provides for proper spacing for Class IIIB liquids stored at higher temperatures. 131

47 30- Log #110 FLC-TAN 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 (6 m). This delineates proper spacing for Class IIIB liquids stored at temperatures at or above their flash points 132

48 30- Log #111 FLC-TAN 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 of concrete, masonry or protected steel. This delineates proper spacing for Class IIIB liquids stored at temperatures at or above their flash points 133

49 30- Log #112 FLC-TAN 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 materials having a fire resistance rating of not less than 2 hours. This delineates proper spacing for Class IIIB liquids stored at temperatures at or above their flash points 134

50 30- Log #113 FLC-TAN 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 135

51 30- Log #175 FLC-TAN Samuel A. Rodgers, Honeywell, Inc 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 above grade into the exposed areas of all tankage. NFPA-30 is in substantial agreement with API-2000 in areas except the wetted area determination. This change would retain the current conservatism for the bottom of a vertical tank, while clearly applying the concept that fire heat loads can affect the upper exposed areas of smaller vessels, as often found in chemical facilities. 136

52 30- Log #114 FLC-TAN 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 than 50,000 gal (190m3) capacity storing Class I liquids or storing Class II or Class III liquids at temperatures at or above their flash points, if located in a congested area where there is an unusual exposure hazard to the tank from adjacent property or to adjacent property from the tank. This delineates proper protection for Class Ii and III liquids stored at temperatures above their flash points 137

53 30- Log #115 FLC-TAN 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 endangering important facilities and adjoining property or from reaching waterways, Such means shall meet the requirements of , , , or whichever is applicable. This delineates proper protection for hazardous liquids other than flammable and combustible. 138

54 30- Log #116 FLC-TAN New text to read as follows: (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 139

55 30- Log #117 FLC-TAN 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, ora hazardous liquid, any one of which is over 150 ft (45 m) in diameter are located in a common diked area, intermediate dikes shall be provided between adjacent tanks to hold at leats 10 percent 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 at temperatures above their flash points 140

56 30- Log #118 FLC-TAN 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 at a location free from any source of ignition. This provides for proper protection for exposures to Class IIIB liquids at temperatures above their flash points 141

57 30- Log #119 FLC-TAN 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 least 15 ft (4.5 m) from powered ventilation air intake devices. This provides for proper protection as required by

58 30- Log #120 FLC-TAN 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 143

59 30- Log #121 FLC-TAN 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

60 30- Log #122 FLC-TAN 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 the dangling participle). 145

61 30- Log #123 FLC-TAN 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

62 30- Log #124 FLC-TAN Revised text to read as follows: 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 be equipped with a tight fill device for connecting the fill hose to the tank. This provides for protection when filling hazardous chemicals or heated products. 147

63 30- Log #125 FLC-TAN Revised text to read as follows: 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 and disconnected shall be located outside of buildings at a location free from any source of ignition and not less than 5 ft (1.5 m) from any building opening or air intake. This provides for protection when filling hazardous chemicals or heated Class IIIB products and provides for protection from intake of vapors by fresh air systems. 148

64 30- Log #126 FLC-TAN 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 storage capacity will be submerged at the maximum flood stage. Tanks shall be so anchored, weighted or secured as to prevent movement 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 149

65 30- Log #127 FLC-TAN 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 flash points. This provides for storing hazardous liquids and indicated Class IIIB at or above, not up to flash points 150

66 30- Log #128 FLC-TAN 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 151

67 30- Log #129 FLC-TAN 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 hazardous vapors can travel, such belowgrade areas shall be provided with mechanical ventilation designed to prevent the accumulation 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 152

68 30- Log #32 FLC-TAN 153

69 30- Log #130 FLC-TAN Where the need is indicated by the hazards of storage or exposure as determined by , fixed protection shall be required utilizing approved foam, foam-water sprinkler systems, sprinkler systems, water spray systems, deluge systems, gaseous extinguishing systems, dry chemical extinguishing systems, fire resistive materials or a combination of these This includes all of the systems referenced in

70 30- Log #34 FLC-TAN 155

71 30- Log #131 FLC-TAN 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 to proposed new section

72 30- Log #132 FLC-TAN 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

73 30- Log #133 FLC-TAN 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 the event that a vapor air mixtures having a concentrations over 25 of the lower flammable limit or a hazardous toxic atmosphere that is above a predetermined limit is detected. This includes requirements for hazardous atmospheres 158

74 30- Log #134 FLC-TAN (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 ventilation system. This adds requirements for hazardous atmospheres 159

75 30- Log #135 FLC-TAN Vents shall terminate at a safe area outside the building. This adds requirements for safely venting hazardous vapors 160

76 30- Log #136 FLC-TAN 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 161

77 30- Log #137 FLC-TAN 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 162

78 30- Log #138 FLC-TAN 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 163

79 30- Log #180 FLC-TAN Bob Eugene, Underwriters Laboratories Inc. 164

80 30- Log #139 FLC-TAN 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 be weaker than the walls of the vault to ensure that the thrust of any explosion inside the vault is directed upward before destructive internal pressure develops within the vault. This adds requirements for Class IIIB liquids stored at high temperatures. 165

81 30- Log #140 FLC-TAN 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 explosion occurring inside the vault This adds requirements for Class III liquids stored at high temperatures. 166

82 30- Log #141 FLC-TAN 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 167

83 30- Log #142 FLC-TAN This chapter shall apply to the design, installation, testing, operation and maintenance of piping systems for flammable, hazardous and combustible liquids or vapors This adds requirements for hazardous liquids in pipes 168

84 30- Log #143 FLC-TAN 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 shall no 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 169

85 30- Log #144 FLC-TAN 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. 170

86 30- Log #145 FLC-TAN 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 171

87 30- Log #146 FLC-TAN 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 so the vapors are released at a safe point outside of buildings and not less than 12 ft (3.6 m) above the adjacent ground level This adds Class II and Class III heated liquids 172

88 30- Log #147 FLC-TAN 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

89 30- Log #148 FLC-TAN 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 III liquids 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 liquid This adds tank venting requirements for Class II and III liquids that are heated and for hazardous liquids 174

90 30- Log #172 FLC-TAN New text to read as follows: A 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 for the subsequent storage of food or liquids intended for human or animal consumption unless such tanks have been first cleaned down to bare metal and certified to be lead free This new text provides precautions for tanks that contained leaded products and other hazardous materials 202

91 30- Log #18 Bob Eugene, Underwriters Laboratories Inc. Revise text as follows: A 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. 203

92 30- Log #181 FLC-TAN Bob Eugene, Underwriters Laboratories Inc. 204

93 30- Log #19 Bob Eugene, Underwriters Laboratories Inc. Revise text as follows: A (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 Systems The 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. 205

94 30- Log #20 Bob Eugene, Underwriters Laboratories Inc. Revise text as follows: A 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 NFPA publications. See NFPA for an example. The ANSI designation should be added to UL 1709 to reflect the ANSI approval of the referenced standard. 206

95 30- Log #182 FLC-TAN Bob Eugene, Underwriters Laboratories Inc. 207

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102 ATTACHMENT A10 Replacement for Reduction Factors for Emergency Relief Venting For tanks containing stable liquids, the required emergency relief venting capacity determined by , , or shall be permitted to be multiplied by one of the reduction factors shown in Table when protection is provided as indicated. Only one reduction factor shall be used for any one tank. Protection measures shall meet (1) through (4), as appropriate. (1) Drainage shall meet the requirements of and the reduction factor shall only be applicable to tanks with wetted area greater than 200 ft 2 (19 m 2 ). (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 (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 * 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 Drainage shall not be required to obtain this reduction. In no case shall the combined reduction factor be less than There shall be no fire exposure from liquids other than from those liquids covered by this provision * 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 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 There shall be no fire exposure from liquids other than from those liquids covered by this provision. Table Emergency Relief Venting Reduction Factors Stable Liquids, water-miscible or non-water-miscible Water-miscible Liquids that meet Non-water-miscible Liquids that meet Protection Measure(s) NONE Drainage alone Manual water spray combined with drainage Automatically-actuated water spray Insulation alone Manual or automaticallyactuated water spray combined with insulation