1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2079 Tests for Fire Resistance of Building Joint SystemsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT
2、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Tests for Fire Resistance of Building Joint Systems, UL 2079 Fifth Edition, Dated August 26, 2015 Summary of Topics This new edition of ANSI/UL 2079 was issued to incorporate the following chang
3、e: Revision to requirements for TC Modication. The revised requirements are substantially in accordance with Proposal(s) on this subject dated April 3, 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, ele
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7、lity, 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. AUGUST 26, 2015 UL 2079 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR D
8、ISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 26, 2015 UL 2079 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL August 26, 2015 1 UL 2079 Standard for Tests for Fire Resistance of Building Joint Systems First Edition N
9、ovember, 1994 Second Edition January, 1997 Third Edition July, 1998 Fourth Edition October, 2004 Fifth Edition August 26, 2015 This ANSI/UL Standard for Safety consists of the Fifth Edition. The most recent designation of ANSI/UL 2079 as an American National Standard (ANSI) occurred on August 26, 20
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12、 COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 2079-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 26, 2015 TESTS FOR FIRE RESISTANCE OF BUILDING JOINT SYSTEMS - UL 2079 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT A
13、UTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Units of Measurement .6 3 Undated References 7 4 Glossary .7 TEST ASSEMBLY 5 General 8 6 Floor-to-Floor Joint Systems 8 7 Wall-to-Wall Joint Systems .9 8 Floor-to-Wall Joint Systems 9 9 H
14、ead-of-Wall Joint Systems 9 10 Conditioning 10 FIRE ENDURANCE TEST 11 Test Furnace .11 12 Time-Temperature Curve 12 13 Furnace Temperatures 13 14 Furnace Pressure .14 15 Temperatures of the Unexposed Surface 15 16 Integrity 16 17 Conduct of Fire Endurance Test 16 HOSE STREAM TEST 18 Test Assembly .1
15、7 19 Conduct of Hose Stream Test 17 OPTIONAL AIR LEAKAGE TEST 20 Test Assembly .18 21 Apparatus 18 22 Conduct of Air Leakage Tests 19 23 Air Leakage Rate Calculation 20 OPTIONAL WATER LEAKAGE TEST 24 Test Sample .20 25 Test Chamber 20 26 Test Setup .22 27 Recorded Test Data .22 ENVIRONMENTAL EXPOSUR
16、E TESTS FOR INTUMESCENT MATERIAL 28 Environmental Exposure Tests for Intumescent Material 22 28.1 General .22 28.2 Required environmental exposures .23 AUGUST 26, 2015 TESTS FOR FIRE RESISTANCE OF BUILDING JOINT SYSTEMS - UL 2079 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI
17、STRIBUTION WITHOUT PERMISSION FROM UL 28.3 Supplemental environmental exposures .23 28.4 Expansion pressure test 24 28.5 Expansion factor test .25 FIRE ENDURANCE RATING 29 Conditions of Acceptance 25 30 Correction .26 31 L rating 26 32 W rating .27 33 Report of Results .27 APPENDIX A A1 Standard Tim
18、e-Temperature Curve for Control of Fire Tests .A1 APPENDIX B B1 Requirements for Thermocouple Pads B1 Appendix C C1 Background information for the W-Rating .C1 AUGUST 26, 2015 TESTS FOR FIRE RESISTANCE OF BUILDING JOINT SYSTEMS - UL 2079 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTI
19、ON OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These tests are applicable to joint systems of various materials and construction that are intended for use in linear openings between adjacent re resistive structures. 1.2 The re endurance ratings for joint systems are intended
20、to register performance during the period of re exposure and are not intended to be interpreted as having determined the acceptability of the joint systems for use before or after re exposure. The intent of these methods is to develop data to assist others in determining the suitability of the joint
21、 systems where re resistance is required. 1.3 These requirements are intended to evaluate the length of time that the types of joint systems specied in 1.1 will contain a re during a predetermined test exposure. The test evaluates the joint systems resistance to heat and, in some instances, to a hos
22、e stream, while carrying an applied load if the assembly is load bearing. The method of testing also includes optional air leakage tests to determine the rate of air leakage through joint systems resulting from a specied air pressure difference applied across the surface of the joint systems. 1.4 Un
23、der these requirements a joint system is subjected to a standard re exposure controlled to achieve specied temperatures throughout a specied time period. This exposure by itself is not intended to be representative of all re conditions; conditions vary with changes in the amount, nature and distribu
24、tion of re loading, ventilation, compartment size and conguration, and heat sink characteristics of the compartment. 1.5 All joint systems are cycled through their intended range of movement prior to re exposure to demonstrate the joint systems range of movement and the impact of the joint system du
25、ring movement on the adjacent re resistive structures. Joint systems are required to be loaded to their designed live load capacity during the re test. For tests of wall-to-wall and head-of-wall joint systems, the re test is followed by the application of a specied standard hose stream. 1.6 These re
26、quirements cover the measurement of the transmission through the joint system of heat and gases sufficiently hot to ignite cotton waste. 1.7 These requirements provide a relative measure of re performance of comparable assemblies under these specied re exposure conditions. Any variation from the con
27、struction or conditions that are tested, such as method of assembly and materials, is not within the scope of this test method. 1.8 Tests for evaluating the suitability of poured or formed-in-place materials for use in joint systems under non-re conditions are found in the Standard Test Method for A
28、dhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle), ASTM C719. 1.9 Tests for evaluating the suitability of joint systems other than those with poured or formed-in-place materials under non-re conditions are found in the Standard Test Method for Cyclic Movement a
29、nd Measuring the Minimum and Maximum Joint Widths of Architectural Joint Systems, ASTM E1399/E1399M. AUGUST 26, 2015 TESTS FOR FIRE RESISTANCE OF BUILDING JOINT SYSTEMS - UL 2079 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1.10 Tests fo
30、r determining the hourly re endurance ratings of walls and oors are found in the Standard for Fire Tests of Building Construction and Materials, UL 263. Standard UL 263 shall be permitted to be used to determine the hourly re endurance rating of walls and oors with control joints. 1.11 Tests for det
31、ermining the surface burning characteristics of building materials, based on the rate of ame spread, are found in the Standard for Test for Surface Burning Characteristics of Building Materials, UL 723. 1.12 The results of these tests represent one factor in assessing re performance of joint systems
32、. These requirements prescribe a standard re exposure for comparing the performance of joint systems. Application of these test results to predict the performance of actual building construction requires careful evaluation of test data. 1.13 The method of testing also includes optional air leakage t
33、ests to determine the rate of air leakage through re resistive joint systems resulting from a specied air pressure difference applied across the surface of the systems. The results obtained from the optional air leakage tests are expressed in cubic feet per minute (cubic meter per second) per lineal
34、 foot (lineal meter) of opening. The results are intended to develop data to assist authorities having jurisdiction, and others, in determining the acceptability of joint systems with reference to the control of air movement through the assembly. 1.14 The method of testing also includes optional wat
35、er leakage tests to determine the ability of re resistive joint systems to resist the passage of water under a three foot pressure head. This method does not evaluate the ability of uncured joint systems to resist such exposure. 1.15 An L rating may also be established for a re resistive joint syste
36、m. The L rating is based on the amount of air leakage through the test sample. 1.16 A W rating may also be established for a re resistive joint system. The W rating is based on the water resistance of the test sample. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement.
37、Values in parentheses are explanatory or approximate information. AUGUST 26, 2015 TESTS FOR FIRE RESISTANCE OF BUILDING JOINT SYSTEMS - UL 2079 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Undated References 3.1 Any undated reference t
38、o 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 Glossary 4.1 For the purpose of this standard the following denitions apply. 4.2 CONTROL JOINT A device or designed feature that provides a continuo
39、us transition in linear openings within a re resistive structure and that does not exceed a maximum joint width of 5/8 in (16 mm). A control joint system consists of the device or designed construction feature but does not include the re resistive structure in which it is installed. 4.3 FIELD SPLICE
40、 The technique utilized at the point of installation to join two or more lengths of a joint system or a joint system component material. 4.4 JOINT SYSTEM A device or designed construction feature that provides a continuous transition in linear openings between adjacent re resistive structures. A joi
41、nt system consists of the device or designed construction feature but does not include the re resistive structure in which it is installed. 4.5 LINEAR OPENING A discontinuity between or within re resistive structures. 4.6 MANUFACTURED SPLICE The technique utilized at the point of manufacture to join
42、 two or more lengths of a joint system component material. 4.7 MAXIMUM JOINT WIDTH The greatest width to which the joint system is designed to extend taking into consideration all axes of movement. 4.8 MINIMUM JOINT WIDTH The narrowest width the joint system is designed to accommodate. 4.9 MOVEMENT
43、CAPABILITY The range of movement that a joint system is designed to accommodate without diminishing its re resistive performance. 4.10 NOMINAL JOINT WIDTH The width of the linear opening specied in practice and in which the joint system is installed. 4.11 STRUCTURE The re resistive oor and/or wall s
44、egments between which the joint system is installed. 4.12 TEST ASSEMBLY The complete assembly of the joint system and the structure in which it is installed. AUGUST 26, 2015 TESTS FOR FIRE RESISTANCE OF BUILDING JOINT SYSTEMS - UL 2079 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
45、 OR DISTRIBUTION WITHOUT PERMISSION FROM UL TEST ASSEMBLY 5 General 5.1 The structure and joint system are to be representative of the construction for which re endurance rating is desired with respect to materials, workmanship, and details such as dimensions of parts. The joint system is to be inst
46、alled in accordance with the manufacturers specied fabrication procedure for conditions representative of those found in building construction. 5.2 Multiple joint systems shall not be installed and tested simultaneously in a test assembly unless adequate separation is maintained between adjacent joi
47、nt systems to prevent the inuence of one joint system on another. For horizontal assemblies, the minimum separation between adjacent joint opening edges is to be 24 in (610 mm). For vertical assemblies, the minimum separation between adjacent joint opening edges is to be 18 in (457 mm). Reduction of
48、 the minimum separation distances is acceptable when it is demonstrated the reduced separation distance does not affect test results. 5.3 A joint system shall have a manufactured splice and a eld splice tested. When the technique of the manufactured splice is the same as the eld splice, only the eld
49、 splice need be tested. The minimum distance that a splice has to the nearest furnace wall is to be 12 in (305 mm). The minimum separation between splices in a joint system shall be 36 in (914 mm). Reduction of the minimum separation distances is acceptable when it is demonstrated the reduced separation distance does not affect test results. 5.4 A joint system is to be tested at the maximum joint width. 5.5 Joint systems that are designed to be load bearin
