1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1709 Rapid Rise Fire Tests of Protection Materials for Structural Steel STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION
2、FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Rapid Rise Fire Tests of Protection Materials for Structural Steel, UL 1709 Fifth Edition, Dated February 24, 2017 Summary of Topics The Fifth Edition of UL 17
3、09, the Standard for Safety for Rapid Rise Fire Tests of Protection Materials for Structural Steel is being issued. The requirements are substantially in accordance with Proposal(s) on this subject dated February 12, 2016 and December 9, 2016. All rights reserved. No part of this publication may be
4、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 provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the
5、 implied warranties of merchantability or tness for 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 Sta
6、ndard, even if UL or an authorized UL representative 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 agre
7、e to defend, indemnify, and hold UL harmless from 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. FEBRUARY
8、24, 2017 UL 1709 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 24, 2017 UL 1709 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 24, 201
9、7 1 UL 1709 Standard for Rapid Rise Fire Tests of Protection Materials for Structural Steel First Edition February, 1989 Second Edition February, 1994 Third Edition March, 2005 Fourth Edition August, 2011 Fifth Edition February 24, 2017 This ANSI/UL Standard for Safety consists of the Fifth Edition.
10、 The most recent designation of ANSI/UL 1709 as an American National Standard (ANSI) occurred on February 24, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. Comments or proposals for revisions on any part of the Standard may be submitted to UL
11、at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. 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 al
12、l copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 1709-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 24, 20
13、17 UL 1709 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 General 4 2.1 Units of measurement.4 2.2 Undated references .4 2.3 Terms of abbreviation .5 2.4 Denitions .5 FULL-SCALE TEST
14、METHOD 3 Furnace Control 5 4 Furnace Calibration .8 5 Test Specimen 15 6 Performance Criteria .18 7 Environmental Performance .18 8 Applicability of Results and Classication .18 9 Supplementary Test Method for Beams.19 9.1 Furnace control .19 9.2 Test specimen 21 9.3 Performance criteria .24 10 Repo
15、rt.25 APPENDIX A A1 Multi-Section Classication A1 A2 Multi-Duration Classication .A3 A3 Multi-Duration, Multi-Section Classication.A5 APPENDIX B(Supplementary Info) B1 Multi-Temperature Assessment B1 APPENDIX C(Supplementary Info) C1 Generation of Supplementary Product Design Tables for Beams.C1 FEB
16、RUARY 24, 2017 UL 1709 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This standard describes a test method for measuring the resistance of protective materials to rapid-temperature-rise res. 1.2 The test method co
17、vers a full-scale re exposure, intended to evaluate the thermal resistance of protective material applied to structural members and the ability of the protective material to withstand the re exposure. 1.3 The standard describes the minimum testing requirements for classication, the limits of applica
18、bility of test results and acceptable methodology to determine the classication achieved. 1.4 The test method includes a supplementary test method for beams, intended to evaluate the ability of protective materials to perform when subject to signicant deections, for use in conjunction with the full-
19、scale exposure test and applicable for beams and other sections subject to bending. Information published in accordance with this test method may also include product design tables for beams and sections subject to bending derived from the supplementary test method and accompanying methodology. 1.5
20、Information published in accordance with this test method may also include supplementary product design tables for alternate limiting temperatures derived from a multi-temperature analysis. Such tables are provided to aide in conditions where a performance-based-design approach is implemented, but a
21、re not part of the classication. 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 references 2.2.1 Any undated reference to a code or standard appearing in the requirements of
22、 this standard shall be interpreted as referring to the latest edition of that code or standard. FEBRUARY 24, 2017 UL 1709 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.3 Terms of abbreviation D or DFT = thickness of re protection mater
23、ial (in) D min = minimum thickness of re protective coating (in) D max = maximum thickness of re protection coating (in) D mid = an intermediate thickness of re protection coating lying within the mid third between D min and D max (in) t = the period or duration of classication (minutes) T = the tem
24、perature (F or C) used as the criteria in an engineering assessment (engineering analysis or study) intended to provide supplementary information to the classication W/D where W is the weight of the open steel section per lineal foot and D is the perimeter of protection material at the interface bet
25、ween the open steel section and the protection material A/P where A is the cross-sectional area of the hollow section and P is the perimeter of protection material at the interface between the hollow steel section and the protection material 2.4 Denitions 2.4.1 Conguration of section: The type of se
26、ction, dened by reference to its shape and structural use. For example: open column, open beam, hollow column, hollow beam. 2.4.2 Hollow section: A tube or pipe or similar shape that has a cross section containing enclosed space. 2.4.3 Open section: A wide ange similar shape section that has a cross
27、-section containing no enclosed space. FULL-SCALE TEST METHOD 3 Furnace Control 3.1 The re environment within the furnace is to develop a total heat ux of 65,000 5000 Btu/hft 2 (204 16 kW/m 2 ) and an average temperature of 2000 100F (1093 56C) within 5 min from the start of the test. The re environ
28、ment is to be controlled by reproducing the furnace temperatures recorded during the furnace calibration method specied in Furnace Calibration, Section 4. This temperature is to be maintained throughout the remainder of the re test as shown in Figure 3.1. This is generated text for gtxt. FEBRUARY 24
29、, 2017 UL 1709 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 3.1 Time-temperature curve FEBRUARY 24, 2017 UL 1709 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.2 The f
30、urnace is to be controlled to maintain the area under the time-temperature curve to within 10% of the corresponding area under the standard time-temperature curve shown in Figure 3.1 for re tests of 60 min or less duration; to within 7.5% for tests longer than 60 min but not longer than 120 min; and
31、 to within 5% for tests exceeding 120 min in duration. The area under the time-temperature curve is to be obtained by averaging the results from the pyrometer or thermocouple readings. 3.3 A correction is to be applied for variation of the furnace exposure from the prescribed, where such variation w
32、ill affect the test results, by multiplying the indicated time period by two-thirds of the value obtained by dividing the difference in area between the curve of average furnace temperature and the standard curve for the rst three-fourths of the period by the area between the standard curve above a
33、base line of 68F (20C) for the same part of the indicated period during the rst part of the test. For re exposure times longer than standard, the indicated rating period is to be increased by the amount of the correction and for re exposure times less than standard, the indicated rating period is to
34、 be similarly decreased. The correction can be expressed by the following formula: In which: C is the correction in the same units as I, I is the indicated re-resistance period, A is the area under the curve of indicated average furnace temperature for the rst three-fourths of the indicated period,
35、and A s is area under the standard furnace curve for the same part of the indicated period. 3.4 The temperature xed by the requirements of Furnace Calibration, Section 4, is to be the average temperature obtained from the readings of no fewer than eight thermocouples symmetrically disposed and distr
36、ibuted within the test furnace to show the temperature near all parts of the assembly or assemblies. 3.5 The thermocouples are to be fabricated by fusion-welding the twisted ends of 0.064-in (1.6-mm) diameter (No. 14 B&S gauge) chromel-alumel wires having a time constant of 2 min or less, and mounti
37、ng the wires in porcelain insulators. The thermocouple assembly is to be inserted through a standard weight, nominal 1/2 in iron, steel or inconel pipe, and the end of the pipe from which the welded junction protrudes is to be open. The thermocouple junction is to protrude 1/2 in (12.7 mm) from the
38、open end of the pipe. 3.6 The junction of each thermocouple is to be placed 4 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. FEBRUARY 24, 2017 UL 1709 7UL COPYRIGHTED MATERIAL NOT
39、 AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.7 Each thermocouple within the furnace shall be read at intervals not exceeding 1 min during the rst 30 min of the test and at intervals not exceeding 5 min during the remainder of the test. 4 Furnace Calibration 4.1 A
40、 furnace calibration record is to be maintained and the column furnace is to be recalibrated after completion of any repair that could alter the heat generation, retention or ow characteristics of the furnace. The calibration shall be conducted at a frequency not to exceed 10 years. 4.2 The exposure
41、 of the furnace is to be measured with thermocouples and calorimeters mounted within a nominal 14 by 14 in by 6 ft high (357 by 357 by 1829 mm) vertical calibration column centered within the furnace chamber. The calibration column is to be fabricated from noncombustible materials, constructed and i
42、nstrumented as shown in Figures 4.1 and 4.2. This is generated text for gtxt. FEBRUARY 24, 2017 UL 1709 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This is generated text for gtxt. Figure 4.1 Calibration column I KEY 12 x2 x 3/16 (51 x
43、51 x 4.8 mm) steel angles welded to form framework 2 Instrumentation block (2 required) 3 Two layers of nom. 1.2 (13 mm) Marinite or equivalent inorganic insulation boards installed on four sides and top of calibration column, secured to framework with No.-20steelboltswithnutsand1(32mm)di ameter ste
44、el washers 4 Entire cavity of calibration column lled with nom. 6 lb/ft 3 (3484 kg/m 3 ) density mineral wool batts FEBRUARY 24, 2017 UL 1709 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Figure 4.2 Calibration column II FEBRUARY 24, 2017
45、 UL 1709 10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.3 The temperature of the furnace is to be measured by eight thermocouples, each located 4 in (102 mm) from the exposed face of the calibration column and at the 1/3 and 2/3 heights
46、. 4.4 The measured values of all thermocouples and calorimeters are to be recorded at intervals not exceeding 1 min. 4.5 The thermocouples used to measure the temperatures on the face of the calibration column are to be No. 28 gauge, Type K inconel sheathed thermocouples having a time constant of 0.
47、5 s or less. The thermocouple junction is to be located 1/4 in (6.3 mm) from the face of the calibration column. 4.6 The thermocouples used to measure the temperatures within the furnace are to be constructed as described in 3.6. 4.7 The calorimeters are to have a minimum range of 100,000 Btu/hft 2
48、(315 kW/m 2 ) and a 180 view angle. 4.8 Combustion gas samples from within the furnace are to be obtained from a probe of stainless steel tubing having an outer diameter not less than 3/16 in (4.7 mm) and a wall thickness not less than 1/32 in (0.8 mm). The probe tip is to be positioned vertically a
49、t the midheight of the calibration column and horizontally located 4 in (102 mm) from the face of the calibration column. 4.9 The combustion gas samples are to be obtained continuously by use of a vacuum pump and the oxygen content measured by an oxygen analyzer. 4.10 The re environment during the calibration test is to comply with the requirements of 3.1. The length of the calibration test is to be 60 min. 4.11 Individual total heat ux measurements are to lie wit
