1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 263 Fire Tests of Building Construction and MaterialsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUT
2、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Fire Tests of Building Construction and Materials, UL 263 Fourteenth Edition, Dated June 21, 2011 Summary of Topics This revision to ANSI/UL 263 is being issued to include new requirements for the
3、Furnace Exposure Test. The effective date for UL LLC will be announced through Industry File Review Announcement Letter. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new requirements are substantially in ac
4、cordance with Proposal(s) on this subject dated February 6, 2015. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL
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8、ror or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. JUNE 2, 2015 UL 263 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 2, 2015 UL 263 tr2 No Text on This PageUL COPYRIGHTE
9、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 21, 2011 (Title Page Reprinted: June 2, 2015) 1 UL 263 Standard for Fire Tests of Building Construction and Materials First Edition May, 1929 Second Edition December, 1934 Third Edition March, 1939 Fou
10、rth Edition November, 1942 Fifth Edition November, 1951 Sixth Edition January, 1955 Seventh Edition May, 1959 Eighth Edition January, 1971 Ninth Edition December, 1976 Tenth Edition August, 1984 Eleventh Edition July, 1992 Twelfth Edition February, 1997 Thirteenth Edition April, 2003 Fourteenth Edit
11、ion June 21, 2011 This ANSI/UL Standard for Safety consists of the Fourteenth Edition including revisions through June 2, 2015. The most recent designation of ANSI/UL 263 as an American National Standard (ANSI) occurred on June 2, 2015. ANSI approval for a standard does not include the Cover Page, T
12、ransmittal Pages and Title Page. 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:/. ULs Standards for Safety are copyright
13、ed 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 LABORATORIES INC. ANSI/UL 263-2015UL C
14、OPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 2, 2015 FIRE TESTS OF BUILDING CONSTRUCTION AND MATERIALS - UL 263 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM
15、 UL CONTENTS INTRODUCTION 1 Scope .5 2 General 6 2.1 Units of measurement .6 2.2 Undated references .6 3 Control of Fire Tests 6 3.1 Time-temperature curve .6 3.2 Furnace temperatures .7 3.3 Temperatures of unexposed surfaces of oors, roofs, walls, and partitions 8 4 Classication as Determined by Te
16、st 9 PERFORMANCE 5 General .10 5.1 Test specimen 10 5.2 Protection and conditioning of test specimen 11 5.3 Conduct of re endurance tests .12 5.4 Conduct of hose stream test 12 5.5 Furnace exposure 12A 6 Bearing Walls and Partitions Test 12B 6.1 Application 12B 6.2 Size and character of specimen 12B
17、 6.3 Loading .12B 6.4 Conditions of acceptance .14 7 Nonbearing Walls and Partitions Test 14 7.1 Application .14 7.2 Size and character of specimen .14 7.3 Conditions of acceptance 14 8 Columns Test .15 8.1 Application .15 8.2 Size and character of specimen .15 8.3 Loading 15 8.4 Exposure to re .15
18、8.5 Conditions of acceptance .15 9 Alternate Test Protection for Structural Steel Columns 15 9.1 Application .15 9.2 Size and character of specimen .16 9.3 Temperature measurement .16 9.4 Exposure to re .16 9.5 Conditions of acceptance .16 9.6 Report of results 16 10 Floor and Roof Assemblies Test 1
19、7 10.1 Application 17 10.2 Size and character of specimen 17 10.3 Loading .18 10.4 Temperature measurement 18 10.5 Conditions of acceptance restrained assembly .21 10.6 Conditions of acceptance unrestrained assembly .22 11 Loaded Restrained Beams Test .22A JUNE 2, 2015 FIRE TESTS OF BUILDING CONSTRU
20、CTION AND MATERIALS - UL 263 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 11.1 Application .22A 11.2 Size and character of specimen 22A 11.3 Loading 22A 11.4 Temperature measurement .22A 11.5 Conditions of acceptance 22B 12 Loaded Unrest
21、rained Beams Test 24 12.1 Application 24 12.2 Size and character of specimen 24 12.3 Loading .25 12.4 Conditions of acceptance .25 13 Alternate Test Protection for Loaded Beams .25 13.1 Application 25 13.2 Conditions of acceptance .26 14 Alternate Test Protection for Solid Structural Steel Beams and
22、 Girders 26 14.1 Application 26 14.2 Size and character of specimen 26 14.3 Temperature measurement 27 14.4 Conditions of acceptance .27 14.5 Report of results .27 15 Tests of Protective Membranes in Wall, Partition, Floor, or Roof Assemblies .27 15.1 Application 27 15.2 Size and character of specim
23、en 27 15.3 Temperature performance of protective membranes 28 15.4 Conditions of acceptance .28 15.5 Report of results .29 APPENDIX A Standard Time-Temperature Curve for Control of Fire Tests APPENDIX B Requirements for Thermocouple Pads APPENDIX C Nonmandatory Guide for Determining Conditions of Re
24、straint for Floor and Roof Assemblies and for Individual Beams JUNE 2, 2015 FIRE TESTS OF BUILDING CONSTRUCTION AND MATERIALS - UL 263 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These re tests are applicable to
25、 assemblies of masonry units and to composite assemblies of structural materials for buildings, including bearing and other walls and partitions, columns, girders, beams, slabs, and composite slab and beam assemblies for oors and roofs. They are also applicable to other assemblies and structural uni
26、ts that constitute permanent integral parts of a nished building. 1.2 The classications for building construction and materials are intended to register performance during the period of re exposure and are not intended to be interpreted as having determined their acceptability for use after re expos
27、ure. 1.3 These requirements are intended to evaluate the length of time that the types of assemblies specied in 1.1 will contain a re or retain their structural integrity, or both, dependent upon the type of assembly involved, during a predetermined test exposure. The test evaluates the assemblys re
28、sistance to heat, and in some instances to a hose stream, while carrying an applied load, if the assembly is load bearing. 1.4 Under these requirements a specimen is subjected to a standard re exposure controlled to achieve specied temperatures throughout a specied time period. In some instances, th
29、e re exposure may be followed by the application of a specied standard re hose stream. This exposure by itself may not be representative of all re conditions; conditions may vary with changes in the amount, nature, and distribution of re loading, ventilation, compartment size and conguration, and he
30、at sink characteristics of the compartment. These requirements provide a relative measure of re performance of comparable assemblies under these specied re exposure conditions. Any variation from the construction or conditions that are tested such as size, method of assembly, and materials, may subs
31、tantially change the performance characteristics of the assembly. 1.5 These requirements cover the following measurements and determinations during the test exposure: a) Measurement of the transmission through the assembly of heat, and of gases sufficiently hot to ignite cotton waste in walls, parti
32、tions, oors, and roofs. b) Measurement of the load carrying ability of load bearing elements in wall, partition, oor, and roof assemblies. c) Measurement of the load carrying ability of individual load bearing assemblies, such as beams and columns, with consideration for the end support conditions,
33、either restrained or not restrained. 1.6 These requirements do not cover: a) Accumulation of data as to performance of assemblies constructed with components or lengths other than those tested. b) Evaluation of the contribution of the assembly to generation of smoke, toxic gases, or other products o
34、f combustion. c) Measurement of the degree of control or limitation of the passage of smoke or products of combustion through the assembly. d) Simulation of the re behavior of joints between building elements, such as oor-wall or wall- wall, and like connections. JUNE 21, 2011 FIRE TESTS OF BUILDING
35、 CONSTRUCTION AND MATERIALS - UL 263 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL e) Measurement of ame spread over the surface of the tested element. f) The effect on re endurance of conventional openings in the assembly, such as openin
36、gs for electrical receptacle outlets, plumbing pipe, or the like, unless specically provided for in the construction tested. 1.7 Tests for burning characteristics of building materials, based on the rate of ame spread, can be found in the Standard for Test for Surface Burning Characteristics of Buil
37、ding Materials, UL 723. 1.8 The tests described herein may be cited as the Standard Fire Tests, and the performance of exposure expressed as 2-hour, 6-hour, 1/2-hour, or the like. 1.9 The results of these tests represent one factor in assessing re performance of building construction and assemblies.
38、 These requirements prescribe a standard re exposure for comparing the performance of building construction assemblies. Application of these test results to predict the performance of actual building construction requires careful evaluation of test conditions. 1.10 If a factor of safety exceeding th
39、at inherent in the test conditions is desired, a proportional increase should be made in the specied time classication period. 2 General 2.1 Units of measurement 2.1.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2 Undated
40、 references 2.2.1 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 Control of Fire Tests 3.1 Time-temperature curve 3.1.1 The conduct of re tests of materials and constructio
41、n is to be controlled by the standard time-temperature curve shown in Figure 3.1. The points on the curve that determine its character are: a) 1000F (538C) at 5 min; b) 1300F (704C) at 10 min; c) 1550F (843C) at 30 min; d) 1700F (927C) at 1 h; e) 1850F (1010C) at 2 h; f) 2000F (1093C) at 4 h; JUNE 2
42、1, 2011 FIRE TESTS OF BUILDING CONSTRUCTION AND MATERIALS - UL 263 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL g) 2300F (1260C) at8ho rover. For a more precise denition of the time-temperature curve, see Standard Time-Temperature Curve
43、for Control of Fire Tests, Appendix A. This is generated text for gtxt. 3.2 Furnace temperatures 3.2.1 The measured temperature to be compared with the standard time-temperature curve is to be the average temperature obtained from the readings of not fewer than nine thermocouples for a oor, roof, wa
44、ll or partition and not fewer than eight thermocouples for a structural beam or column, symmetrically disposed and distributed to indicate the temperature near all parts of the specimen. 3.2.2 The thermocouples are to be enclosed in sealed porcelain tubes, 3/4 inch (19.1 mm) in outside diameter and
45、1/8 inch (3.2 mm) in wall thickness or, as an alternative in the case of base metal thermocouples, enclosed in sealed, standard-weight 1/2-in 0.84-in (21.3 mm) outside diameter black wrought steel or black wrought iron pipe. See the Standard for Welded and Seamless Wrought Steel Pipe, ASME B36.10M.
46、The exposed length of the pyrometer tube and thermocouple in the furnace chamber is to be not less than 12 in (305 mm). Other types of protecting tubes or pyrometers may be used that, under test conditions, give the same indications as those specied within the limit of accuracy that applies for furn
47、ace temperature measurements. Figure 3.1 Time-temperature curve JUNE 21, 2011 FIRE TESTS OF BUILDING CONSTRUCTION AND MATERIALS - UL 263 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.2.3 For oors, roofs, beams and columns, the junction
48、of each thermocouple is to be placed 12 in (305 mm) away from the exposed face of the specimen at the beginning of the test and is not to touch the specimen during the test, as a result of specimen deection. 3.2.4 For walls and partitions, the thermocouples are to be placed 6 in (152 mm) away from t
49、he exposed face of the specimen at the beginning of the test and are not to touch the specimen during the test as a result of specimen deection. 3.2.5 The temperatures are to be read at intervals not exceeding 5 min during the rst 2 h; the intervals thereafter may be increased to not more than 10 min. 3.2.6 The temperature of the furnace is to be controlled so that the area under the measured time-temperature curve, obtained by av
