1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1784 Air Leakage Tests of Door Assemblies and Other Opening ProtectivesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTE
2、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Air Leakage Tests of Door Assemblies and Other Opening Protectives, UL 1784 Fourth Edition, Dated February 17, 2015 Summary of Topics This new edition of ANSI/UL 1784 includes the
3、 following changes in requirements: Change in title of UL 1784 to include “and Other Opening Protectives” General revisions to update the current requirements in UL 1784 The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated May 16, 2014 and December
4、12, 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, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any ki
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8、n electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except 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
9、 for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. FEBRUARY 17, 2015 UL 1784 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
10、 FEBRUARY 17, 2015 UL 1784 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 17, 2015 1 UL 1784 Standard for Air Leakage Tests of Door Assemblies and Other Opening Protectives The First, Second, and Third editi
11、ons were titled Standard for Air Leakage Tests of Door Assemblies. First Edition June, 1990 Second Edition December, 1995 Third Edition February, 2001 Fourth Edition February 17, 2015 This ANSI/UL Standard for Safety consists of the Third Edition including revisions through February 17, 2015. The mo
12、st recent designation of ANSI/UL 1784 as an American National Standard (ANSI) occurred on February 17, 2015. 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
13、 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 copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of U
14、Ls 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 1784-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM
15、 UL FEBRUARY 17, 2015 UL 1784 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 5 2.1 Units of measurement .5 2.2 Undated references .5 3 Glossary .5 INSTALLATION AND OPERATING I
16、NSTRUCTIONS 4 General 6 PERFORMANCE 5 General 7 5.1 Test sample .7 5.2 Conditioning .7 5.3 Test chamber 7 5.4 Test setup .8 6 Cycling Test 9 7 Air Leakage Tests .10 7.1 General 10 7.2 Ambient temperature exposure tests .10 7.3 Elevated temperature exposure tests 10 7.4 Recorded test data 11 8 Report
17、 of Results 11 9 Air Leakage Rating .12 MARKING 10 General 12 APPENDIX A A1 Accuracy in Airow Determination A1 FEBRUARY 17, 2015 UL 1784 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover the i
18、nvestigation of air leakage through door assemblies and other opening protectives (hereafter also referred to as test sample) installed in wall openings where air leakage is intended to be controlled. 1.1 revised February 17, 2015 1.2 The purpose of the test is to determine only the resistance of a
19、test sample, in the closed position, to air leakage resulting from a specied air pressure difference applied across the surface of the entire opening protective. 1.2 revised February 17, 2015 1.3 These requirements apply to complete door assemblies, opening protectives, or to gasketing systems inten
20、ded for use with specic door or other protective assemblies. 1.3 revised February 17, 2015 1.4 The test method includes air leakage tests and cycling tests to determine the rate of air leakage through a test sample in an as-installed condition. 1.4 revised February 17, 2015 1.5 The results obtained
21、by use of this test method are expressed in cubic feet per minute per square foot (m 3 /s per m 2 ) of opening and are intended to develop data to assist authorities having jurisdiction, and others, in determining acceptability of a door assembly, opening protective, or gasketing system with referen
22、ce to control of air movement through an assembly. 1.5 revised February 17, 2015 1.6 A door assembly, opening protective, or gasketing system investigated by this test method is intended for installation and use in accordance with the Standard for the Installation of Smoke Door Assemblies, NFPA 105.
23、 1.6 revised February 17, 2015 1.7 This test method shall not be used for such opening protectives that include an air leakage test method within the test standard. For example, the Standard for Fire Tests of Through-Penetration Firestops, UL 1479, contains an air leakage test method for restop syst
24、ems and therefore shall not be substituted with this test method. 1.7 added February 17, 2015 FEBRUARY 17, 2015 UL 1784 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 General 2.1 Units of measurement 2.1.1 Values stated without parenthes
25、es 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 this standard shall be interpreted as referring to the latest edition of that code or standard. 3 Glossa
26、ry 3.1 For the purpose of this test method the following denitions apply. 3.2 AIR-FLOW METERING SYSTEM A device used to measure the air ow within the limitations of error specied in 7.4. 3.3 AIR LEAKAGE (Q) The volume of air owing, per unit of time, through the openings around a closed test sample u
27、nder a test pressure difference, expressed as cubic feet per minute (m 3 /s). This air leakage volume is to be reported normalized to an ambient air temperature of 75F (24C). 3.3 revised February 17, 2015 3.4 AIR SYSTEM A controllable blower, compressed air supply, exhaust system, or reversible blow
28、er designed to provide a constant required air ow at the specied xed test pressure difference for the period required to obtain readings of air leakage. 3.4 revised February 17, 2015 3.5 AMBIENT TEMPERATURE EXPOSURE The temperature at the exposed face of the test sample is to be 75 20F (24 11C). 3.5
29、 revised February 17, 2015 3.6 ELEVATED TEMPERATURE EXPOSURE The temperature at the exposed face of the test sample is to be 400 10F (204 5C). 3.6 revised February 17, 2015 3.7 EXTRANEOUS LEAKAGE (Q L ) The difference between the metered air ow (Q m ) and the air leakage (Q). 3.8 METERED AIR FLOW (Q
30、 m ) The volume of air owing per unit of time through the air ow metering system, expressed as cubic feet per minute (m 3 /s). 3.9 OPENING The clear area within the test sample boundaries, which may include the oor, header, and other edges that allows the passage of people or materials, determined b
31、y the overall dimensions of the test sample expressed as square feet (m 2 ). The oor shall be considered as part of the opening when the frame is not continuous and terminates at the oor slab. 3.9 revised and relocated February 17, 2015 FEBRUARY 17, 2015 UL 1784 5UL COPYRIGHTED MATERIAL NOT AUTHORIZ
32、ED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.10 OPENING PROTECTIVE A device or assembly such as a curtain used to protect openings in walls against the spread of smoke within, into or out of a building. 3.10 added February 17, 2015 3.11 RATE OF AIR LEAKAGE The air leakage
33、 per unit of opening, expressed as cubic feet per minute per square feet (m 3 /s per m 2 ) of the test sample. 3.11 revised February 17, 2015 3.12 REPLACEMENT AIR The volume of air, at ambient temperature, added to the test chamber, to replace the air leakage (Q) volume of air in either the ambient
34、or elevated temperature exposure tests. 3.13 TEST CHAMBER A sealed chamber or box with an opening, a removable mounting panel, or one open side in which or against which the test sample is installed and sealed. 3.14 TEST PRESSURE DIFFERENCE The specied difference in static air pressure across the cl
35、osed and latched or xed test sample expressed as inch of water column (Pa). 3.15 TEST SAMPLE The entire assembly of the opening system, which may include the frame, operable panel, gasketing, hardware, or any combination thereof. The test sample shall also consist of the specic type of supporting co
36、nstruction for which the opening is installed. 3.15 revised February 17, 2015 INSTALLATION AND OPERATING INSTRUCTIONS 4 General 4.1 Installation and operating instructions shall be made available with each test sample by the manufacturer. Instructions shall be illustrated and shall include detailed
37、directions and information for the intended installation and operation of the test sample. Instructions shall cover mounting, sealing, opening and closing requirements, maximum and minimum size of the test sample, and shall be in accordance with the Standard for the Installation of Smoke Door Assemb
38、lies, NFPA 105. 4.1 revised February 17, 2015 4.2 The instructions shall be used as a guide in the examination and test of the opening assembly. For this purpose, a published edition is not required. A published edition will be required upon successful completion of the test program. 4.2 revised Feb
39、ruary 17, 2015 4.3 The evaluated sample size shall be as dened in the Standard for the Installation of Smoke Door Assemblies, NFPA 105. In instances where the test sample or size is not dened in NFPA 105, the construction and size of the tested sample shall be representative of that for which the ra
40、ting is being evaluated. For test sample sizes not dened in NFPA 105, critical factors including the aspect ratio (ratio of door perimeter to area) and the length of linear gaps or clearances where leakage could occur is to be considered in determining the sample size for testing.The instructions sh
41、all be used as a guide in the examination and test of the opening assembly. For this purpose, a published edition is not required. A published edition will be required upon successful completion of the test program. 4.3 added February 17, 2015 FEBRUARY 17, 2015 UL 1784 6UL COPYRIGHTED MATERIAL NOT A
42、UTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 5 General 5.1 Test sample 5.1.1 A representative test sample for each specic design desired for evaluation shall be subjected to the Cycling Test, Section 6, followed by the Air Leakage Tests, Section 7. 5.1.1
43、revised February 17, 2015 5.1.2 Each test sample shall be tested from both directions with respect to the opening of the test chamber. The testing can either be conducted on one test sample that is removed and repositioned in the mounting panel or on two separate, identical test samples. 5.1.2 revis
44、ed February 17, 2015 5.1.3 The test laboratory has the authority to identify and evaluate representative test installations that shall be subjected to the tests described within this standard. When a test sample and assembly is entirely symmetrical about the center plane of the test sample and assem
45、bly, a single representative direction can be tested. If testing is conducted from one side only, the justication shall be stated within the report. Exception: For those test samples not dened within the Standard for the Installation of Smoke Door Assemblies, NFPA 105, each size and aspect ratio sha
46、ll be considered for testing as the performance of the assembly is directly related to its size and construction. 5.1.3 added February 17, 2015 5.2 Conditioning 5.2.1 A test sample containing hygroscopic materials or other materials that can be affected by moisture is to be conditioned in an environ
47、ment having a dry bulb temperature of 77 5F (25 3C) and a relative humidity of 40 65 percent until the moisture content within the test sample reaches equilibrium. The equilibrium shall be based on measurements taken by no less than 3 days apart. 5.2.1 revised February 17, 2015 5.3 Test chamber 5.3.
48、1 The air leakage test chamber is to consist of a well-sealed chamber or box with an opening, a removable mounting panel, or one open side in or against which the test sample is installed and sealed. A means of access into the chamber may be provided to facilitate adjustments and observations of the
49、 installed test sample. 5.3.2 At least one static pressure tap is to be provided to measure the chamber pressure and is to be located so that the reading is unaffected by the velocity of the air supplied to or exiting from the chamber. 5.3.3 The temperature of the chamber shall be deemed the average temperature obtained by a minimum of three thermocouples and no fewer than one thermocouple per 15 square feet (1.4 m 2 ) of test assembly exposed to the fur
