1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 72 Tests for Fire Resistance of Record Protection EquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL N
2、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Tests for Fire Resistance of Record Protection Equipment, UL 72 Sixteenth Edition, Dated April 7, 2015 Summary of Topics The Sixteenth Edition of the Standard for Tests for Fire Resistance of
3、 Record Protection Equipment, UL 72, has been issued to reect the latest ANSI approval date and to incorporate the proposals dated August 22, 2014, which include the following: Revisions to update the document with current practices as well as include new diagrams that are helpful to the user in set
4、ting up and conducting the testing. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated August 22, 2014. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, elec
5、tronic, 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 for any purpose. In no event will UL be
6、 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 representative has been advised of the possibilit
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9、es, 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that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREME
10、NTS notice. APRIL 7, 2015 UL 72 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 7, 2015 UL 72 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 7
11、, 2015 1 UL 72 Standard for Tests for Fire Resistance of Record Protection Equipment The First through Ninth editions were titled Standard for Fire Resistance Classication of Record Protection Equipment. First Edition January, 1918 Second Edition April, 1924 Third Edition March, 1929 Fourth Edition
12、October, 1931 Fifth Edition December, 1941 Sixth Edition April, 1947 Seventh Edition July, 1952 Eighth Edition October, 1968 Ninth Edition September, 1969 Tenth Edition October, 1971 Eleventh Edition February, 1977 Twelfth Edition March, 1983 Thirteenth Edition January, 1991 Fourteenth Edition Novem
13、ber, 1995 Fifteenth Edition May, 2001 Sixteenth Edition April 7, 2015 This ANSI/UL Standard for Safety consists of the Sixteenth Edition. The most recent designation of ANSI/UL 72 as an American National Standard (ANSI) occurred on April 7, 2015. ANSI approval for a standard does not include the Cov
14、er 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 submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/.
15、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 rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS
16、LABORATORIES INC. ANSI/UL 72-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 7, 2015 TESTS FOR FIRE RESISTANCE OF RECORD PROTECTION EQUIPMENT - UL 72 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
17、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Units of Measurement .5 3 Undated References 5 4 Classications and Ratings .5 TESTS 5 General 6 6 Fire Endurance Test .6 6.1 General .6 6.2 Thermocouple locations .7 6.3 Humidity measuring equipment 14 7 Fire and Impa
18、ct Test .16 7.1 General 16 7.2 Samples .16 7.3 Method .16 8 Explosion Test .17 8.1 General 17 8.2 Samples .17 8.3 Method .17 9 Combined Explosion Impact Test 18 10 Gasket Materials 18 MARKING 11 General 19 APPENDIX A AA Time-Temperature Curve for Control of Fire Tests .A1 APRIL 7, 2015 TESTS FOR FIR
19、E RESISTANCE OF RECORD PROTECTION EQUIPMENT - UL 72 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover the test procedures applicable to the re-resistance classication of record protection equi
20、pment intended to provide protection to one or more types of records when exposed to various durations of re exposure. 1.2 Record protection equipment consists of self-contained, moveable devices of varying congurations, such as insulated bodies with insulated doors or drawers or lids, nonrated mult
21、idrawer devices housing individually rated drawer bodies, and other similar constructions. 1.3 Tests conducted in accordance with these requirements are intended to demonstrate the performance of record protection equipment during exposure to re, but are not intended to determine acceptability for u
22、se after re exposure. 1.4 Under these requirements, record protection equipment is exposed to a re endurance test and an explosion test. Equipment intended to provide impact resistance is also exposed to a re and impact test. The re endurance test is intended to demonstrate the ability of the device
23、 to prevent the development of temperatures and relative humidity (Classes 125 and 150 only) exceeding the specied limits inside the device for the classication desired. The explosion test is intended to demonstrate the ability of the device to withstand a sudden exposure to high temperatures and pr
24、event an explosion of the device from a buildup of steam or other gases. The re and impact test is intended to demonstrate the ability of the device to protect contents from heat, to the extent described in the requirements, before and after an impact due to falling 30 ft (9.1 m). 1.5 The re exposur
25、es are controlled to achieve specied temperatures throughout a specied time period. These re test exposures by themselves may not be representative of all re conditions; conditions may vary with changes in the amount, nature, and distribution of re loading; the size and re or nonre resistive constru
26、ction of the building; and the location of the device within the building. 1.6 The interior sample temperature and relative humidity limitations applied to the three classes of devices reect the type of records to be stored in the device. Class 350 rated devices are intended to protect paper records
27、, Class 150 rated devices are intended to protect paper and nonpaper records such as EDP media (magnetic tapes) and photographic records, and Class 125 rated devices are intended to also protect exible computer disks. However, nonpaper records are not used as contents for the tests described in thes
28、e requirements since testing to determine the ability of all available nonpaper records to withstand these conditions is not within the scope of these requirements. 1.7 Record protection equipment may incorporate locking devices, but the burglary resistance of such mechanisms is not within the scope
29、 of these requirements. APRIL 7, 2015 TESTS FOR FIRE RESISTANCE OF RECORD PROTECTION EQUIPMENT - UL 72 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values
30、in parentheses are explanatory or approximate information. 3 Undated References 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. 4 Classications and Ratings 4.1 Record prot
31、ection equipment is classied in terms of an interior temperature limit and a time in hours. Three temperature limits are employed: 350F (177C), 150F (66C), or 125F (52C). The time limits employed are 4, 3, 2, 1, or 1/2 h. The complete rating indicates that the specied interior temperature limit is n
32、ot exceeded when the device is exposed to the standard test re as described in these requirements for the length of time specied including the cool-down period following the standard re exposure. 4.2 Record protection equipment may have additional ratings (be multi-rated) for integrally constructed
33、subcompartments that, when tested as part of the device, provide a greater degree of protection than the basic equipment. The basic equipment, for example, may be rated Class 350, whereas an integrally constructed subcompartment may be rated Class 125 or 150. A nonrated cabinet, for example, may inc
34、orporate insulated drawers rated for a combination of Classes 125, 150, and 350. The hourly time element is the same for the basic equipment, if rated, and each subcompartment or drawer. 4.3 Temperature classications of 150F (66C) and 125F (52C) further indicate that interior relative humidities of
35、85 and 80 percent, respectively, are not exceeded when the device is exposed to the standard test re and the cooling period following the standard test re. 4.4 Ratings assigned to record protection equipment are as follows: a) Class 125 4, 3, 2, 1 or 1/2 h. b) Class 150 4, 3, 2, 1 or 1/2 h. c) Class
36、 350 4, 3, 2, 1 or 1/2 h. APRIL 7, 2015 TESTS FOR FIRE RESISTANCE OF RECORD PROTECTION EQUIPMENT - UL 72 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL TESTS 5 General 5.1 The descriptions of certain tests include reference to the usabilit
37、y of the contents. Contents employed in tests of record protection equipment as specied herein are to be of material considered common newsprint and coated and uncoated magazine paper. The uncoated paper is to have a surface pH of less than 7.0. 5.2 The contents of record protection equipment shall
38、not be adversely affected by temperature, humidity, or chemical off-gasing that could cause them to be unusable. The contents are considered to be usable after tests if able to withstand ordinary handling; that is, a) They do not crumble or fall apart or adhere to one another (stick together) such t
39、hat they are incapable of being separated without defacing or rendering papers useless during removal and examination and b) They are legible without the use of supplemental devices or aides of any kind. 5.3 Insulation used in record protection devices shall be of material that retains its heat-insu
40、lating properties. 6 Fire Endurance Test 6.1 General 6.1.1 Class 350 record protection equipment shall withstand the re endurance test for the classication period desired by preventing the interior temperature from exceeding the rated temperature during the period of re exposure and during the cooli
41、ng period after the re exposure; without destroying the usability of the contents; and without developing conditions indicating disintegration of parts or materials likely to affect the tightness of closure or the insulation. 6.1.2 Class 125 and 150 record protection equipment shall withstand the re
42、 endurance test for the classication period desired by preventing the interior temperature from exceeding the rated temperature during the period of re exposure and during the cooling period after the re exposure, and without developing conditions indicating disintegration of parts or materials like
43、ly to affect the tightness of closure or the insulation. In addition, the interior relative humidity shall not exceed 85 percent for Class 150 equipment and shall not exceed 80 percent for Class 125 equipment during both the re-exposure period and during the cooling period until the interior tempera
44、ture has decreased to 120F (49C) or a temperature decrease of 4F (2C) has occurred if the interior temperature remains at less than 120F for the duration of the test. 6.1.3 Representative samples of each line of equipment are to be selected for test. 6.1.4 For re safe, if a given line of equipment d
45、iffers only in size, and not in such details as wall thickness, hinge construction, latch bolts and number of doors, the largest size is to be selected for test. Intermediate sizes may be selected for test if the line includes a relatively large number of sizes or if the interior dimensions vary fro
46、m those of the largest unit to result in the reduction of the volume by more than 50 percent. APRIL 7, 2015 TESTS FOR FIRE RESISTANCE OF RECORD PROTECTION EQUIPMENT - UL 72 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 6.1.5 For le cabine
47、t, if the design incorporates horizontal partitions separating the drawer cavities such that each cavity is a separate insulated interior volume, and if a given line of equipment differs only in number of drawers, the largest size and the maximum drawer size is to be selected for test. For example,
48、4 drawer size can represent 3, 2, 1 drawer size. 6.1.6 If le cabinets constructed in 6.1.5 are produced in a wide range of sizes in width and depth, or if the interior volume of the insulated compartment varies from that of the largest insulated compartment to result in the reduction of the volume b
49、y more than 50 percent, intermediate sizes are to be selected for test. 6.1.7 Thermocouples shall consist of wires not smaller than 20 AWG (0.52 mm 2 ) and not larger than 18 AWG (0.82 mm 2 ). The thermocouple wire shall comply with the Tolerances on Initial Values of EMF versus Temperature tables in the Standard Specication and Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples, ANSI/ASTM E230/E230M. 6.2 Thermo
