NFPA Technical Committee on Cultural Resources NFPA 914 PRE-SECOND DRAFT MEETING AGENDA September 24-25, 2013 Maine Maritime Museum Bath, Maine 1. Call to order. Call meeting to order by Chair Don Moeller, at 8:30 AM, September 24, 2013. 2. Self-introduction of committee members and guests. For a current committee roster, see pg. 2. 3. Approval of previous meeting minutes. Approve the April 23-24, 2013 meeting minutes, pg. 6. 4. Chair’s report – D. Moeller. 5. Review schedule for future meetings – D. Moeller. i) ii) iii) April 28-May 2, 2014: NFPA 914 Second Draft Meeting, Hawaii (tentative) – F. Leber. Fall 2014: NFPA 909 Pre-First Draft Meeting, Yellowstone or Grand Canyon National Parks (tentative) – T. Neitzel. Spring 2015 (NLT 6/15/2015): NFPA 909 First Draft Meeting – TBD. 6. NFPA 914 First Draft Report (Comment Closing Date: 11/15/2013). See: http://submittals.nfpa.org/TerraViewWeb/ViewerPage.jsp?id=9142010.ditamap&pubStatus=FDR 7. NFPA 909 extracts in NFPA 13. See p. 11. 8. Portable Fire Extinguisher Agent Task Group report – C. Greczek. 9. Other business. 10. Adjournment. Adjourn by 12:00 Noon, Wednesday, September 25, 2013. Page 1 of 12 09/13/2013 Gregory E. Harrington CUL-AAA Address List No Phone Cultural Resources Donald C. Moeller E 7/26/2007 Chair CUL-AAA The Fire Consultants, Inc. 1276 Durant Court Walnut Creek, CA 94596 California State Historical Building Safety Board Michael Coull SE 11/2/2006 Secretary CUL-AAA Heritage Fire and Safety Ltd. 4 Lochinch Road Cove Bay, Aberdeen, AB12 3SL Scotland, United Kingdom Historic Scotland Clare Ray Allshouse Principal City of Shoreline, Washington Planning & Community Development 17500 Midvale Avenue North Shoreline, WA 98133-4905 E 3/21/2006 Nicholas Artim CUL-AAA Principal Fire-Safety Network Function engineer designer Box 895 Middlebury, VT 05753 Alternate: Steven Rocklin SE 1/1/1990 CUL-AAA Eileen E. Brady Principal Washington State University Owen Science & Engineering Library Pullman, WA 99164-3200 U 11/2/2006 Steve Carter CUL-AAA Principal Orr Protection Systems, Inc. 11601 Interchange Drive Louisville, KY 40229 Fire Suppression Systems Association Alternate: Daniel J. Hubert M 7/19/2002 CUL-AAA John E. Chartier Principal Rhode Island State Fire Marshal 118 Parade Street Providence, RI 02909 National Association of State Fire Marshals Laura E. Doyle Principal US General Services Administration 301 7th Street SW, Room 2080 Washington, DC 20407 Alternate: Joseph Dafin E 8/2/2010 Grant Crosby CUL-AAA Principal US Department of the Interior National Park Service 240 West 5th Avenue Anchorage, AK 99501 Alternate: Todd J. Neitzel E 03/07/2013 CUL-AAA U 9/30/2004 Wilbur Faulk CUL-AAA Principal Pepperdine University 24255 Pacific Coast Highway Malibu, CA 90263-4851 U 1/1/1989 CUL-AAA Robert F. Fisher Principal FM Global 25050 Country Club Blvd., Suite 300 North Olmsted, OH 44070 I 7/1/1995 Russell P. Fleming CUL-AAA Principal National Fire Sprinkler Association, Inc. 40 Jon Barrett Road Patterson, NY 12563 Alternate: Scott T. Franson Deborah L. Freeland Principal Arthur J. Gallagher & Company 505 North Brand Blvd., Suite 600 Glendale, CA 91203 I 1/1/1988 CUL-AAA Page 2 of 12 M 10/10/1998 CUL-AAA 1 09/13/2013 Gregory E. Harrington CUL-AAA Address List No Phone Cultural Resources Cindy Greczek Principal Colonial Williamsburg Foundation PO Box 1776 Williamsburg, VA 23187-1776 Alternate: Danny L. McDaniel George A. Krabbe Principal 10648 East Raintree Drive Scottsdale, AZ 85255-8527 Halon Alternatives Research Corporation U 10/4/2001 Michael Kilby CUL-AAA Principal Smithsonian Institution 600 Maryland Avenue SW, Suite 7106 MRC 514, PO Box 37012 Washington , DC 20013-7012 SE 10/1/1994 A. M. Fred Leber CUL-AAA Principal Leber/Rubes Inc. (LRI) Yonge Eglinton Center 2300 Yonge Street, Suite 2100 PO Box 2372 Toronto, ON M4P 1E4 Canada Alternate: Ronald P. Bertone Nancy Lev-Alexander Principal US Library of Congress Conservation Division, LMG-38 101 Independence Avenue, SE Washington, DC 20540 U 7/29/2005 Wayne D. Moore CUL-AAA Principal Hughes Associates, Inc. 117 Metro Center Boulevard, Suite 1002 Warwick, RI 02886-2207 Alternate: Cheryl L. Domnitch Kevin D. Morin Principal Code Consultants, Inc. 215 West 40th Street, Floor 15 New York, NY 10018 Alternate: Michael D. Kirn SE 3/4/2009 Luca Nassi CUL-AAA Principal Italian National Fire Department Comando P.le VV.F. di Siena V.le Cavour 163 Siena, 53100 Italy Daniel E. Nichols Principal State of New York Department of State 99 Washington Avenue, #1160 Albany, NY 12231 E 8/9/2011 Thomas F. Norton CUL-AAA Principal Norel Service Company, Inc. 37 Buckmaster Drive Concord, MA 01742-2809 Automatic Fire Alarm Association, Inc. Alternate: Shane M. Clary Sheila Palmer Principal Chubb & Son Insurance Company 55 Water Street New York, NY 10041 Alternate: Richard P. Luongo I 1/15/2004 Milosh T. Puchovsky CUL-AAA Principal Worcester Polytechnic Institute Department of Fire Protection Engineering 100 Institute Road Worcester, MA 01609 Page 3 of 12 U 7/22/1999 CUL-AAA SE 10/28/2008 CUL-AAA SE 1/1/1992 CUL-AAA E 10/27/2005 CUL-AAA M 1/1/1988 CUL-AAA SE 10/27/2009 CUL-AAA 2 09/13/2013 Gregory E. Harrington CUL-AAA Address List No Phone Cultural Resources Martin H. Reiss Principal The RJA Group, Inc. 1661 Worcester Road, Suite 501 Framingham, MA 01701-5401 Alternate: James H. Antell Robert D. Wilson Principal National Gallery of Art 6th Street & Constitution Ave., NW Washington, DC 20565 Ronald P. Bertone Alternate Robson Forensic 10651 Ivanhoe Lane Wellington, FL 33414 Principal: A. M. Fred Leber Joseph Dafin Alternate US General Services Administration 301 7th Street SW, Room 2080 Washington, DC 20407 Principal: Laura E. Doyle SE 1/17/1997 John M. Watts, Jr. CUL-AAA Principal Fire Safety Institute PO Box 674 Middlebury, VT 05753 Alternate: Marilyn E. Kaplan U 1/10/2002 James H. Antell CUL-AAA Alternate The RJA Group, Inc. Rolf Jensen & Associates, Inc. 600 West Fulton Street, Suite 500 Chicago, IL 60661-2208 Principal: Martin H. Reiss SE 07/29/2013 Shane M. Clary CUL-AAA Alternate Bay Alarm Company 60 Berry Drive Pacheco, CA 94553 Automatic Fire Alarm Association, Inc. Principal: Thomas F. Norton U 8/5/2009 Cheryl L. Domnitch CUL-AAA Alternate Hughes Associates, Inc. 2640 Meadow Glen Place San Ramon, CA 94583 Principal: Wayne D. Moore Scott T. Franson Alternate The Viking Corporation 210 North Industrial Park Road Hastings, MI 49058 National Fire Sprinkler Association Principal: Russell P. Fleming M 08/09/2012 Daniel J. Hubert CUL-AAA Alternate Janus Fire Systems 1102 Rupcich Drive, Millennium Park Crown Point, IN 46307 Fire Suppression Systems Association Principal: Steve Carter Marilyn E. Kaplan Alternate Preservation Architecture 43 Marion Avenue Albany, NY 12203 Principal: John M. Watts, Jr. SE 1/14/2005 Michael D. Kirn CUL-AAA Alternate Code Consultants, Inc. 2043 Woodland Parkway, Suite 300 St. Louis, MO 63146-4235 Principal: Kevin D. Morin Page 4 of 12 SE 1/1/1977 CUL-AAA SE 08/09/2012 CUL-AAA M 11/2/2006 CUL-AAA SE 10/27/2009 CUL-AAA M 3/15/2007 CUL-AAA SE 10/20/2010 CUL-AAA 3 09/13/2013 Gregory E. Harrington CUL-AAA Address List No Phone Cultural Resources Richard P. Luongo Alternate Chubb & Son Insurance Company 202 Hall’s Mill Road Whitehouse Station, NJ 08889 Principal: Sheila Palmer Todd J. Neitzel Alternate US Department of the Interior National Park Service 12795 West Alameda Parkway Lakewood, CO 80225 Principal: Grant Crosby I 7/26/2007 Danny L. McDaniel CUL-AAA Alternate Colonial Williamsburg Foundation PO Box 1776 Williamsburg, VA 23187-1776 Principal: Cindy Greczek E 10/20/2010 Steven Rocklin CUL-AAA Alternate T.Y. Lin International One Commerce Plaza, Suite 2001 99 Washington Avenue Albany, NY 12260 Principal: Nicholas Artim Stewart Kidd SE 4/1/1993 Nonvoting Member CUL-AAA Loss Prevention Consultancy, Ltd. 26 Broadway, Wilburton Ely, Cambridgeshire, CB6 3RT United Kingdom Stefano Marsella Nonvoting Member Via Orti Gianicolensi, 4 Rome, 00152 Italy William Jackson Member Emeritus 55 Albany Drive Lanark, ML11 9AF Scotland Page 5 of 12 U 1/1/1980 CUL-AAA SE 10/04/2001 CUL-AAA Russell B. Leavitt SE 08/09/2012 Nonvoting Member CUL-AAA Telgian Corporation 2615 South Industrial Park Avenue Tempe, AZ 85282 TC on Sprinkler System Discharge Criteria SE 10/6/2000 Stephen E. Bush CUL-AAA Member Emeritus 1850 Kershaw Lane Winchester, VA 22601-6383 SE 1/1/1992 Gregory E. Harrington CUL-AAA Staff Liaison National Fire Protection Association 1 Batterymarch Park Quincy, MA 02169-7471 SE 1/1/1974 CUL-AAA 6/29/2007 CUL-AAA 4 MEETING MINUTES NFPA Technical Committee on Cultural Resources NFPA 914 First Draft Meeting APRIL 23-24, 2013 Royal British Columbia Museum Victoria, British Columbia, Canada 1. CALL TO ORDER/WELCOME Don Moeller called the meeting to order at 8:35 am. He welcomed the committee to Victoria and thanked Nick Artim for organizing the meeting. Nick Artim said the committee scheduled a meeting at the museum in 1997, but a fire in the museum caused the meeting to move to the Empress Hotel. 2. SELF INTRODUCTION OF MEMBERS The committee completed self-introductions. TECHNICAL COMMITTEE MEMBERS PRESENT NAME Donald Moeller, Chair Cindy Greczek, Principal, Acting Secretary Clare Ray Allshouse, Principal Nick Artim, Principal Eileen Brady, Principal Grant Crosby, Principal Laura Doyle, Principal Wilbur Faulk, Principal Deborah Freeland, Principal A.M. Fred Leber, Principal Thomas Norton, Principal Sheila Palmer, Principal James Antell, Alternate to Martin Reiss Joseph Dafin, Alternate to Laura Doyle Scott Franson, Alternate to Russell Fleming Daniel Hubert, Alternate to Steve Carter Richard Luongo, Alternate to Sheila Palmer Russell Leavitt, Nonvoting Member Gregory Harrington, Staff Liaison REPRESENTING The Fire Consultants, Inc. Rep. California State Historical Building Safety Board Colonial Williamsburg Foundation City of Shoreline, Washington Fire-Safety Network Washington State University US Department of the Interior US General Services Administration Pepperdine University Arthur J. Gallagher & Company Leber/Rubes Inc. (LRI) Norel Service Company, Inc. Rep. Automatic Fire Alarm Association, Inc. Chubb & Son Insurance Company The RJA Group, Inc. US General Services Administration The Viking Corporation Rep. National Fire Sprinkler Association Janus Fire Systems Rep. Fire Suppression Systems Association Chubb & Son Insurance Company Telgian Corporation Rep. TC on Sprinkler System Discharge Criteria National Fire Protection Association TECHNICAL COMMITTEE PRINCIPAL MEMBERS NOT PRESENT (NOT LISTED WHERE ALTERNATE ATTENDED) NAME Michael Coull, Secretary Page 6 of 12 REPRESENTING Heritage Fire and Safety Ltd. Rep. Historic Scotland CUL-AAA FIRST DRAFT MEETING MINUTES - APRIL 23-24, 2013 Page 1 of 5 John Chartier, Principal Robert Fisher, Principal Michael Kilby, Principal George Krabbe, Principal Nancy Lev Alexander, Principal Wayne Moore, Principal Kevin Morin, Principal Luca Nassi, Principal Daniel Nichols, Principal Milosh Puchovsky, Principal John Watts, Principal Robert Wilson, Principal Rhode Island State Fire Marshal Rep. National Association of State Fire Marshals FM Global Smithsonian Institution Halon Alternatives Research Corporation US Library of Congress Hughes Associates Inc. Code Consultants, Inc. Italian National Fire Department State of New York Department of State Worcester Polytechnic Institute Fire Safety Institute National Gallery of Art 3. APPROVAL OF MEETING MINUTES OF SEPTEMBER 18-19, 2012 IN VENICE ITALY The minutes were approved as presented. 4. CHAIR’S REPORT Grant Crosby replaces Steve Peterson as the principal representative from the US Department of the Interior, and Todd Neitzel continues to serve as the alternate representative. Steve Rocklin, formerly representing State of New York Department of State, is appointed as alternate to Nick Artim representing T.Y. Lin International. Don thanked Shelia Palmer for taking over for Steve Peterson as the task group chair for NFPA 914 – Code for Fire Protection of Historic Structures. Don asked for volunteers to serve on the 909 task group and the following members volunteered: Debbie Freeland, Wilbur Faulk, Dan Hubert, Tom Norton, Fred Leber, Scott Franson and Cindy Greczek. Cindy said Danny McDaniel would also like to serve on the task group. Don thanked Cindy Greczek for volunteering to fill in as committee secretary since Mike Coull was unable to attend the meeting. 5. STAFF LIAISON’S REPORT Greg Harrington conducted a training session and provided a booklet on the new NFPA standards development process, which included changes in terminology, process for requesting assistance from the Fire Protection Research Foundation, navigating the document info page and casting electronic ballots. Committee members are encouraged to familiarize themselves with the new regulations. Complete details on the new process are available at the NFPA website: http://www.nfpa.org/categoryList.asp?categoryID=164 6. REVIEW SCHEDULE FOR FUTURE COMMITTEE MEETINGS September 24-25, 2013 (NFPA 914 Pre Second Draft Meeting). Tom Norton confirmed the meeting location will be the Maine Maritime Museum in Bath, Maine and will also include a tour of the Bath Shipyard. April 28 – May 2, 2014 (NFPA 914 Second Draft Meeting). Fred Leber said he can arrange for a meeting facility in Kona Hawaii. Page 7 of 12 CUL-AAA FIRST DRAFT MEETING MINUTES - APRIL 23-24, 2013 Page 2 of 5 Fall 2014 (NFPA 909 Pre-First Draft Meeting). The committee will ask Todd Neitzel to look into a meeting facility at Yellowstone or Grand Canyon National Park. Spring 2015 (NFPA 909 First Draft Meeting). Debbie Freeland suggested polling the committee members to identify future meeting facilities/locations. 7. NFPA 914 TASK GROUP REPORT Shelia Palmer, who replaced Steve Peterson as task group chair, provided an overview of the task group’s work as follows: a new section on security, new annex material on historic districts, updates to reference documents and overall clarifying of language. Shelia presented the revisions made to Chapters 1 through 15 and Ray Allshouse presented the revisions made to Annex S. Ray added that the greatest risk to a historic district is fire, guidance is needed on how to set up a historic district and fire planning will follow. The committee reviewed the public input and created numerous First Revisions on NFPA 914. See the First Draft Report on the NFPA 914 document information page (www.nfpa.org/914) for the final actions. Shelia also provided copies of the Secretary of the Interior’s Standards for the Treatment of Historic Properties to all committee members. 8. PORTABLE FIRE EXTINGUISHER AGENT TASK GROUP REPORT Cindy Greczek confirmed that the Colonial Williamsburg Foundation submitted the grant application to the Institute for Museum and Library Services (IMLS) in January 2013 and received confirmation from IMLS the grant application was received and is being evaluated. An award decision from IMLS is expected fall of 2013. Cindy also said Colonial Williamsburg archaeological conservator Emily Williams is working on a paper to present at an International Council of Museums (ICOM) conference in 2014 should Colonial Williamsburg be awarded the grant. 9. PROTECTING OUR HERITAGE UPDATE Greg Harrington reported NFPA has a new product evaluation process and team that looked at Protecting Our Heritage as a “for-sale” product. The team decided there is not sufficient revenue potential considering the time, effort and expense it will take to produce this document. NFPA, however, will support the committee in making some version of Protecting Our Heritage available. One option might be to revise it as a white paper and post it on NFPA’s website. Greg asked for volunteers to participate in a conference call with NFPA management to discuss this further. The committee suggested Cheryl Domnitch and Marilyn Kaplan be involved and Shelia Palmer also volunteered to participate. Don Moeller will follow up by discussing the issue with Cheryl. Dan Hubert suggested the committee look for a cultural group to champion this project apart from NFPA, for example American Association of Museums or Heritage Preservation Association. Another committee suggestion was to add Protecting Our Heritage as an annex. All of these ideas will be open for discussion. 10. NEW PROJECT PROPOSAL ON HYBRID GAS-FINE WATER DROPLET SYSTEMS Don Moeller reported the Standards Council is looking for public input regarding a new standard on this type of system. The committee discussed whether hybrid technology should be part of Page 8 of 12 CUL-AAA FIRST DRAFT MEETING MINUTES - APRIL 23-24, 2013 Page 3 of 5 NFPA 750 or a separate standard. The committee supports the need to develop a standard for hybrid systems using a combination of inert gas and very fine water droplets, and Don will submit a letter to the Standards Council expressing the discussions at the meeting. (See attached memorandum to Standards Council.) 11. OTHER BUSINESS A tour of the museum is scheduled at 1:30 pm on April 24, 2013. 12. ADJOURNMENT The meeting was adjourned at 11:30 am on April 24, 2013. Minutes prepared by Cindy Greczek, Acting Secretary. Page 9 of 12 CUL-AAA FIRST DRAFT MEETING MINUTES - APRIL 23-24, 2013 Page 4 of 5 Technical Committee on Cultural Resources MEMORANDUM TO: Amy Cronin, Secretary, Standards Council FROM: Don Moeller, Chair, Technical Committee on Cultural Resources DATE: April 29, 2013 SUBJ: Comment on New Standard – Hybrid Gas Fine Water Droplet Systems At its meeting on April 23, 2013, the Technical Committee on Cultural Resources voted unanimously to submit the following response to the request for public input on a new standard to address hybrid gas fine water droplet systems. I am submitting the response on the committee’s behalf. The Technical Committee on Cultural Resources supports inclusion of hybrid system technology in NFPA standards. Hybrid-type systems could potentially be used to control and/or extinguish typical hazards that are included in and considered by NFPA 909, Code for the Protection of Cultural Resource Properties – Museums, Libraries, and Places of Worship, and NFPA 914, Code for Fire Protection of Historic Structures. In addition, the committee believes that the technology should be incorporated into the current NFPA 750, Standard on Water Mist Fire Protection Systems, due to its similarity in technology in regards to both fire fighting mechanics and system component mechanics. The Technical Committee on Cultural Resources recognizes that attempts have been made to include hybrid systems under NFPA 750 and that these attempts have been rejected by the NFPA 750 technical committee. If it is the decision of the Standards Council to not incorporate hybrid system technology into NFPA 750, then we recommend and support the development of a new standard for “hybrid fire suppression systems.” Although Factory Mutual has approved hybrid systems for use in specific FM insured facilities, the lack of a national standard covering hybrid systems hampers the use of such systems even when the hybrid system provides the best option for fire extinguishment in a given hazard area. Also, lack of guidance for use of hybrid systems leaves authorities who wish to utilize hybrid technology, other than FM, without the type of definitive guidance provided by a nationally recognized consensus standard. In summary, the Technical Committee on Cultural Resources supports the inclusion of hybrid fire suppression systems technology in NFPA standards. Page 10 of 12 CUL-AAA FIRST DRAFT MEETING MINUTES - APRIL 23-24, 2013 Page 5 of 5 NFPA 13, Standard for the Installation of Sprinkler Systems, 2013 Edition 22.30 Code for the Protection of Cultural Resource Properties — Museums, Libraries, and Places of Worship. [NFPA 909] 22.30.1 Design Requirements. 22.30.1.1* Standard-response sprinklers shall be permitted for use in light-hazard areas. [909:12.4.4.2] 22.30.1.2* Preaction and dry pipe systems shall be designed to minimize the risk of corrosion in accordance with the requirements of 9.12.12.3.1 through 9.12.12.3.5 of NFPA 909. [909:9.12.12.3] 22.30.1.3 System Design for Museums, Libraries, and Their Collections in Compact Storage. 22.30.1.3.1* The design shall recognize the nature of the potential threat of a fire that originates in a compact mobile storage unit, where fuel loads are invariably large and fire growth is significantly different from that in other kinds of storage. [909:9.12.23.4.1.3] 22.30.1.3.2* The automatic fire suppression system, the compact storage system, and the storage compartmentalization features shall be designed to limit fire damage in accordance with the facility’s fire safety objectives. [909:9.12.23.4.1.4(A)] 22.30.1.3.3 Design calculations shall include the number and size of the storage modules, the separation provided between the modules end-to-end and back-to-back, and the type of material being stored. [909:9.12.23.4.1.4(B)] 22.30.1.3.4 Where the automatic fire suppression is provided by automatic fire sprinkler systems, the systems shall be wet pipe, single interlock pre-action, or single noninterlock preaction systems. [909:9.12.23.4.1.4(C)] 22.30.1.3.5 Dry pipe or double-interlock pre-action systems shall not be installed in compact storage areas. [909:9.12.23.4.1.4(D)] 22.30.1.3.6 Where compact storage is installed in an existing storage area, the existing automatic fire detection and fire suppression systems shall be modified as required to accommodate the increased fire loading. [909:9.12.23.4.1.4(E)] 22.30.2 Installation Requirements. 22.30.2.1* Branch lines shall be pitched at least 1⁄2 in. per 10 ft (4 mm/m), and mains shall be pitched at least 1⁄4 in. per 10 ft (2 mm/m). [909:9.12.12.3.1] 22.30.2.2* Auxiliary drains shall be provided at all low points in accordance with NFPA13 requirements for dry pipe systems and preaction systems subject to freezing. [909:9.12.12.3.2.1] Page 11 of 12 22.30.2.3* Where steel pipe is used in dry pipe and preaction systems, the provisions of NFPA 13 shall be applied assuming water supplies and environmental conditions that contribute to unusual corrosive properties, and a plan shall be developed to treat the system using one of the following methods: (1) Install a water pipe that is corrosion resistant (2) Treat all water that enters the system using an approved corrosion inhibitor (3) Implement an approved plan for monitoring the interior conditions of the pipe at established intervals and locations. [909:9.12.12.3.3] NFPA 13-2013 DRAFT REVISIONS 22.30 Code for the Protection of Cultural Resource Properties — Museums, Libraries, and Places of Worship. [NFPA 909] 22.30.1 Design Requirements. 22.30.1.1* Standard-response sprinklers shall be permitted for use in light-hazard areas. [909:12.4.4.2] 22.30.1.2* Preaction and dry pipe systems shall be designed to minimize the risk of corrosion in accordance with the requirements of 9.12.12.3.122.30.1.2.1 through 9.12.12.3.5 of NFPA 90922.30.1.2.3. [909:9.12.12.3] 22.30.1.2.1* Branch lines shall be pitched at least 1⁄2 in. per 10 ft (4 mm/m), and mains shall be pitched at least 1⁄4 in. per 10 ft (2 mm/m). [909:9.12.12.3.1] 22.30.1.2.2* Auxiliary drains shall be provided at all low points in accordance with NFPA13 requirements for dry pipe systems and preaction systems subject to freezing. [909:9.12.12.3.2.1] 22.30.1.2.3* Where steel pipe is used in dry pipe and preaction systems, the provisions of NFPA 13 shall be applied assuming water supplies and environmental conditions that contribute to unusual corrosive properties, and a plan shall be developed to treat the system using one of the following methods: (1) Install a water pipe that is corrosion resistant (2) Treat all water that enters the system using an approved corrosion inhibitor (3) Implement an approved plan for monitoring the interior conditions of the pipe at established intervals and locations. [909:9.12.12.3.3] 22.30.1.3 System Design for Museums, Libraries, and Their Collections in Compact Storage. 22.30.1.3.1* The design shall recognize the nature of the potential threat of a fire that originates in a compact mobile storage unit, where fuel loads are invariably large and fire growth is significantly different from that in other kinds of storage. [909:9.12.23.4.1.3] 22.30.1.3.2* The automatic fire suppression system, the compact storage system, and the storage compartmentalization features shall be designed to limit fire damage in accordance with the facility’s fire safety objectives. [909:9.12.23.4.1.4(A)] 22.30.1.3.3 Design calculations shall include the number and size of the storage modules, the separation provided between the modules end-to-end and back-to-back, and the type of material being stored. [909:9.12.23.4.1.4(B)] 22.30.1.3.4 Where the automatic fire suppression is provided by automatic fire sprinkler systems, the systems shall be wet pipe, single interlock pre-action, or single non-interlock preaction systems. [909:9.12.23.4.1.4(C)] Page 12 of 12 22.30.1.3.5 Dry pipe or double-interlock pre-action systems shall not be installed in compact storage areas. [909:9.12.23.4.1.4(D)] 22.30.1.3.6 Where compact storage is installed in an existing storage area, the existing automatic fire detection and fire suppression systems shall be modified as required to accommodate the increased fire loading. [909:9.12.23.4.1.4(E)] 22.30.2 Installation Requirements. 22.30.2.1* Branch lines shall be pitched at least 1⁄2 in. per 10 ft (4 mm/m), and mains shall be pitched at least 1⁄4 in. per 10 ft (2 mm/m). [909:9.12.12.3.1] 22.30.2.2* Auxiliary drains shall be provided at all low points in accordance with NFPA13 requirements for dry pipe systems and preaction systems subject to freezing. [909:9.12.12.3.2.1] 22.30.2.3* Where steel pipe is used in dry pipe and preaction systems, the provisions of NFPA 13 shall be applied assuming water supplies and environmental conditions that contribute to unusual corrosive properties, and a plan shall be developed to treat the system using one of the following methods: (1) Install a water pipe that is corrosion resistant (2) Treat all water that enters the system using an approved corrosion inhibitor (3) Implement an approved plan for monitoring the interior conditions of the pipe at established intervals and locations. [909:9.12.12.3.3] A.22.30.1.2.1 Although prior to the 2007 edition NFPA13 permitted the pipe for systems not subject to freezing to be installed without a back pitch, similar to the design of wet pipe systems, this arrangement allows water to accumulate in low points, increasing the rate of corrosion. Proper pitching is an important element in reducing the risk of corrosion. The pitch requirements included in NFPA 13 should be considered the minimum acceptable pitch. Where adequate clearance is provided to permit the system to be installed without causing interferences with structural elements or causing low points, pitches exceeding this minimum requirement such as 4mm/m(1⁄2 in. per 10 ft) should be considered. [909: A.9.12.12.3.1] A.22.30.1.2.2 Additional auxiliary drainage should be provided, in accordance with NFPA 13, regardless of whether the protected area is subject to freezing. [909: A.9.12.12.3.2.1] A.22.30.1.2.3 The wording is based on NFPA 13, 24.1.5.2. The special sensitivity of cultural resource properties to water damage that could result from piping corrosion warrants the assumption of water supplies and environmental conditions that contribute to unusual corrosive properties. [909: A.9.12.12.3.3]