1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2368 Fire Exposure Testing of Rigid Nonmetallic and Composite Nonmetallic Intermediate Bulk Containers for Combustible LiquidsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
2、OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Fire Exposure Testing of Rigid Nonmetallic and Composite Nonmetallic Intermediate Bulk Containers for Combustible Liquids, U
3、L 2368 Second Edition, Dated January 31, 2012 Summary of Topics This revision of ANSI/UL 2368 is being issued to: 1. Clarify the text, requirements, and test methods of the standard and 2. Require that Intermediate Bulk Containers shall be lled with Mineral Seal Oil for Fire Testing rather than wate
4、r and a small quantity of Heptane Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the dat
5、e of publication or the date on which the changed requirement becomes effective. The new and requirements are substantially in accordance with Proposal(s) on this subject dated January 17, 2014. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or tran
6、smitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness f
7、or any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representat
8、ive has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from
9、 and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, excep
10、t for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and
11、are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. MARCH 24, 2014 UL 2368 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Date Referenc
12、e September 24, 2015 Paragraphs 8.2 and 9.3 MARCH 24, 2014 UL 2368 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 31, 2012 (Title Page Reprinted: March 24, 2014) 1 UL 2368 Standard for Fire Exposure Testing of Rigid Nonmetallic a
13、nd Composite Nonmetallic Intermediate Bulk Containers for Combustible Liquids First Edition August, 2001 Second Edition January 31, 2012 This ANSI/UL Standard for Safety consists of the Second Edition including revisions through March 24, 2014. The most recent designation of ANSI/UL 2368 as an Ameri
14、can National Standard (ANSI) occurred on March 24, 2014. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be
15、 submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rig
16、hts regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC. ANSI/UL 2368-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 24, 2014 UL 2368 2 No Text on This PageUL
17、COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 General 4 2.1 Components .4 2.2 Units of measurement .4 2.3 Undated references .5 3 Glossary .5 CONSTRUCTION 4 General 5 PERFORMANCE 5 General 6 6 Material Tests
18、 6 7 Fire Performance Tests 6 8 Large-Scale Fire Performance Tests 6 9 Reduced-Scale Fire Performance Tests 10 MARKING 10 General 12 MARCH 24, 2014 UL 2368 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This standa
19、rd includes re test methods and associated requirements to investigate the ability of rigid nonmetallic or composite rigid nonmetallic intermediate bulk containers (IBCs) to contain combustible liquids when exposed to re while protected with an automatic wet-pipe sprinkler system installed in accord
20、ance with the Flammable and Combustible Liquids Code, NFPA 30. 1.1 revised March 24, 2014 1.2 Deleted March 24, 2014. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard is to comply with the requirements for that component. 2.1.2 A componen
21、t is not required to comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.1.3 A component shall be used in accordance with its
22、rating established for the intended conditions of use. 2.1.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall b
23、e used only under those specic conditions. 2.2 Units of measurement 2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. MARCH 24, 2014 UL 2368 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION W
24、ITHOUT PERMISSION FROM UL 2.3 Undated references 2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 3 Glossary 3.1 For the purposes of this standard, the following denition
25、s apply. 3.2 Deleted March 24, 2014. 3.3 Deleted March 24, 2014. 3.4 INTERMEDIATE BULK CONTAINER (IBC) Department Of Transportation (DOT) approved shipping container manufactured and marked in accordance with Title 49, Code of Federal Regulations, Part 178; and United Nations Designation 31H1, 31H2,
26、 or 31HZ1. 3.5 LEAKAGE The loss of any liquid from an IBC at a location below its full liquid level. 3.6 STRUCTURAL INTEGRITY The ability of the IBC to remain in an upright position without toppling over or leaning more than 6 inches (15 cm) or 5 degrees, from a vertical plane, whichever is greater.
27、 CONSTRUCTION 4 General 4.1 IBCs covered by this standard shall have a capacity not exceeding 793 gallons (3000 l) and marked in accordance with 3.4. 4.1 revised March 24, 2014 4.2 IBCs shall be provided with a valve cap seal. 4.2 added March 24, 2014 4.3 IBCs having the valve cap seal broken are no
28、t covered by this standard. 4.3 added March 24, 2014 MARCH 24, 2014 UL 2368 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 5 General 5.1 Samples representative of each IBC are to be subjected to the following tests. The largest
29、 capacity unit is to be evaluated. Similar smaller-sized units need not be evaluated unless their wall thickness is less than that of a larger unit that has been tested with acceptable results. 6 Material Tests 6.1 Test samples of polymeric materials used to construct an IBC are to be subjected to a
30、 cone calorimeter test described in ASTM E1354, Standard Test Method for Heat and Visible Smoke Release Rates for Materials and Products Using an Oxygen Consumption Calorimeter, for identication purposes. Exception: Polymeric materials that comply with the Standard for Polymeric Materials Use in Ele
31、ctrical Equipment Evaluations, UL 746C, need not be subjected to this test. 7 Fire Performance Tests 7.1 An IBC shall show no evidence of leakage or loss of structural integrity as described in Section 3, Glossary, when subjected to the large-scale or the reduced-scale re performance tests described
32、 in Sections 8 and 9, respectively. 7.1 revised March 24, 2014 8 Large-Scale Fire Performance Tests 8.1 The large-scale re performance tests are to be conducted in an enclosed room tted with a 30-ft (9.2-m) high smooth, at ceiling. A closed head, wet pipe, automatic sprinkler system utilizing thirty
33、-six 286F (141C) standard response nominal K=11.2 upright style sprinklers, installed at a nominal 10-by-10 ft (3-by-3 m) spacing with the sprinkler deectors36inches (76.2 152.4 mm) below the ceiling. The piping system is to be connected to a water supply capable of maintaining the required water di
34、scharge density of 0.60 gpm/ft 2 (24.5 lpm/m 2 ). 8.1 revised March 24, 2014 8.2 Eight IBCs are to be lled to their rated capacity, but not more than 98 percent of their overll capacity, with mineral seal oil and then closed and sealed as for transportation. Each container is then to be stored at 75
35、 5 F( 2 4 3 C) for not less than 30 days. The IBCs are then to be arranged in a 2-by-2-by-2 high storage array with 6-in (15.2-cm) longitudinal and transverse ue spaces centered under the ceiling as shown in Figure 8.1. Revised 8.2 effective September 24, 2015 This is generated text for gtxt. MARCH
36、24, 2014 UL 2368 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 8.1 Large-scale re test JANUARY 31, 2012 UL 2368 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 8.3 The fol
37、lowing instrumentation is to be provided: a) Thermocouples located below the ceiling adjacent to each sprinkler to record ceiling temperatures and time of sprinkler operation. b) Pressure sensors and owmeters to measure and monitor the water supply to the sprinkler system. c) Timing devices to monit
38、or and record signicant events during the re tests. 8.4 A three dimensional heptane re is to be supplied with fuel at a owrate of 2 gpm (7.6 lpm) through a 1-inch (2.5-cm) upturned pipe elbow located approximately 6 inches (15 cm) above the bottom of the upper unit, ush with the side of the IBC at t
39、he center ue intersection of the storage array. The ignition source is to consist of 8 plastic 1-gallon (3.8-l) bags of heptane positioned in the longitudinal and transverse ue spaces as shown in Figure 8.2. The heptane supply is to be opened so as to deliver 2 gallons (7.6 l) of heptane over the ar
40、ea prior to ignition. The 10 gallons (37.8 l) of heptane is then to be ignited with a torch. At the operation of the rst ceiling sprinkler, the fuel system is to be turned on to provide 2 gpm (7.6 lpm) of heptane through the fuel delivery system for the remainder of the 30-minute test. This is gener
41、ated text for gtxt. JANUARY 31, 2012 UL 2368 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 8.2 Ignition placement details JANUARY 31, 2012 UL 2368 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WIT
42、HOUT PERMISSION FROM UL 8.5 During each test, the time of sprinkler operation, ceiling temperatures, heptane, and water ow rates are to be recorded. 8.6 The test is to be conducted for 30 minutes or until there is evidence of leakage or loss of structural integrity. If this event occurs in less than
43、 30 minutes after the exposure, the IBCs are to be examined for evidence of leakage or loss of structural integrity. Each IBC is then to be examined again after 24 hours for any signs of leakage. 8.6 revised March 24, 2014 9 Reduced-Scale Fire Performance Tests 9.1 The reduced-scale re performance t
44、ests are to be conducted in an enclosed test cell having a smooth, at 30-ft (9.2-m) high ceiling. A sprinkler system utilizing four open nominal K=11.2 upright sprinklers installed on a nominal 8-by-10 ft. (2.4-by-2.5 m) spacing, is to be installed with the sprinkler deectors36inches (76.2 152.4 mm)
45、 below the ceiling. The piping system is to be connected to a water capable of owing water to maintain a 0.60-gpm/ft 2 (24.5 mm/min) discharge density. 9.1 revised March 24, 2014 9.2 A 50-ft 2 (4.6-m 2 ) square steel test tray at least 10 inches high is to be centered below the four sprinklers and t
46、ted with a solid at steel platform to provide a 2-ft (0.6-m) open area along 2 adjacent sides of the tray. See Figure 9.1. Water is to be added to the tray so as to maintain a liquid level within 1 2 inches (2.5 5.0 cm) below the platform which is resting directly on top of the tray. The test tray i
47、s then to be tted with a fuel supply pipe with the discharge end positioned at least 1 inch (2.5 cm) below the water. This is generated text for gtxt. MARCH 24, 2014 UL 2368 10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 9.1 Reduce
48、d scale re test JANUARY 31, 2012 UL 2368 11UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9.3 Two IBCs are to be lled to their rated capacity, but not more than 98 percent of their overll capacity, with mineral seal oil and then closed and
49、sealed as for transportation. Each container is then to be stored at 75 5 F( 2 4 3 C) for not less than 30 days. The IBCs are then to be stacked one on top of the other and positioned on the edge of the test platform as shown in Figure 9.1. One of the exposed sides of each IBC is to contain the outlet valve housing (doghouse). Heptane is to be allowed to ow into the test tray at 2-gpm (7.6-lpm) for 3 minutes. The heptane is then to be ignited and the 2-gp
