1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 181A Closure Systems for Use With Rigid Air Ducts STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED
2、MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Closure Systems for Use With Rigid Air Ducts, UL 181A Fourth Edition, Dated January 8, 2013 Summary of Topics This revision of ANSI/UL 181A is being issued to update the title page
3、to reect reaffirmation of ANSI approval. 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 requirements are substantially in accordance with Proposal(s) on this subject dated February 3, 2017. All rights reserve
4、d. 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 kind, either expressed or impl
5、ied, including but not limited to, the 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 u
6、se of or the inability to use this Standard, 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 ver
7、sions of ULs Standards for Safety agree 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
8、 purchasers computer system. MARCH 22, 2017 UL 181A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 22, 2017 UL 181A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER
9、MISSION FROM UL JANUARY 8, 2013 (Title Page Reprinted: March 22, 2017) 1 UL 181A Standard for Closure Systems for Use With Rigid Air Ducts Prior to the rst edition, the requirements for the products covered by this standard were included in the Outline of Investigation for Closure Systems for Use Wi
10、th Air Ducts and Connectors, Subject 181A. The rst and second editions were titled Factory-Made Air Ducts and Air Connectors. First Edition June, 1991 Second Edition November, 1994 Third Edition May, 2005 Fourth Edition January 8, 2013 The most recent designation of ANSI/UL 181A as a Reaffirmed Amer
11、ican National Standard (ANS) occurred on March 22, 2017. The ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. This ANSI/UL Standard for Safety consists of the Fourth Edition including revisions through March 22, 2017. Comments or proposals for revision
12、s 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 https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard shou
13、ld 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 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 181A-2013 (R2017)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTI
14、ON OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 22, 2017 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Components .5 3 Unit
15、s of Measurement .5 4 Undated References 6 5 Referenced Standards .6 PART I PRESSURE SENSITIVE ALUMINUM TAPES FOR USE WITH RIGID FIBERGLASS AIR DUCTS CONSTRUCTION 6 Materials .6 PERFORMANCE 7 Tensile Strength Test 7 8 Peel Adhesion Test at 180 Degree Angle 7 9 Shear Adhesion Test 7 10 Peel Adhesion
16、Test at 20 Degree Angle 9 11 Surface Burning Characteristics Test 10 12 Mold Growth and Humidity Test .10 13 Temperature/Pressure Cycling Test 11 14 Burning Test 13 MARKING 15 General 14 PART II HEAT ACTIVATED ALUMINUM TAPES FOR USE WITH RIGID FIBERGLASS AIR DUCTS CONSTRUCTION 16 Materials .15 PERFO
17、RMANCE 17 Tensile Strength Test .15 18 Peak Adhesion Test at 180 Degree Angle 15 19 Shear Adhesion Test 17 20 Peak Adhesion Test at 20 Degree Angle .20 21 Surface Burning Characteristics Test 20 22 Mold Growth and Humidity Test .20 23 Temperature/Pressure Cycling Test 20 24 Burning Test 20 JANUARY 8
18、, 2013 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKING 25 General 21 PART III MASTIC CLOSURE SYSTEMS FOR USE WITH RIGID FIBERGLASS AIR DUCTS CONSTRUCTION 26 Materials .22 27 Glo
19、ssary .22 PERFORMANCE 28 Tensile Joint Strength Test .22 29 Adhesion Test 24 30 Shear Adhesion Test 24 31 Freeze/Thaw Test .27 32 Surface Burning Characteristics Test 28 33 Mold Growth Test .28 34 Temperature/Pressure Cycling Test 28 35 Burning Test 29 MARKING 36 General 29 INSTRUCTIONS 37 Installat
20、ion Instructions 30 JANUARY 8, 2013 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover closure systems for use with factory-made rigid air
21、 ducts or air connectors complying with the Standard for Factory-Made Air Ducts and Air Connectors, UL 181. Closure systems consist of pressure sensitive tapes, heat-activated tapes, and mastics. 1.2 Closure systems are intended for use with rigid air ducts installed in accordance with the Internati
22、onal Mechanical Code (IMC), International Residential Code (IRC), International Energy Conservation Code (IECC), Uniform Mechanical Code (UMC), Standard for the Installation of Air Conditioning and Ventilating Systems, NFPA 90A, and the Standard for the Installation of Warm Air Heating and Air Condi
23、tioning Systems, NFPA 90B; and/or other Model codes. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.2 A component is not required to comply with a specic requirement that: a) Involves a feature o
24、r characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are inco
25、mplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3 Units of Measurement 3.1 Values stated wit
26、hout parentheses are the requirement. Values in parentheses are explanatory or approximate information. JANUARY 8, 2013 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4 Undated Referen
27、ces 4.1 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. 5 Referenced Standards 5.1 Standards referenced in these requirements include those specied below. ASTM D3759, Standard
28、 Test Method for Breaking Strength and Elongation of Pressure-Sensitive Tape ASTM D3330, Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape ASTM D3654, Standard Test Method for Shear Adhesion of Pressure-Sensitive Tapes ASTM C794, Standard Test Method for Adhesion-in-Peel of Elastomer
29、ic Joint Sealants UL 181 Standard for Factory-Made Air Ducts and Air Connectors PART I PRESSURE SENSITIVE ALUMINUM TAPES FOR USE WITH RIGID FIBERGLASS AIR DUCTS CONSTRUCTION 6 Materials 6.1 Aluminum tape shall consist of an aluminum or aluminum alloy foil 2-1/2 inches (63.5 mm) wide minimum, covered
30、 on one side with adhesive. The adhesive surface shall be protected by a release liner intended to be removed at the time of tape installation. JANUARY 8, 2013 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITH
31、OUT PERMISSION FROM UL PERFORMANCE 7 Tensile Strength Test 7.1 The average tensile strength in both the machine and cross-machine directions of each roll of aluminum tape shall be not less than 25 pounds per inch (4.37 N/mm) of width, with no individual specimen having a value of less than 21 pounds
32、 per inch (3.67 N/mm) of width, determined in accordance with the Standard Test Method for Breaking Strength and Elongation of Pressure-Sensitive Tape, ASTM D3759. All cross-direction specimens are to be cut from special 6 inch (142.4 mm) wide rolls of tape. 7.2 Three specimens from each of three se
33、parate rolls of tape shall be prepared with a laboratory specimen cutter for both machine and cross directions. (A JDC Precision Sample Cutter is acceptable for this purpose. Other cutters having equivalent or comparable characteristics are also acceptable.) 8 Peel Adhesion Test at 180 Degree Angle
34、8.1 The average peel adhesion strength of aluminum tape shall be not less than 3.75 pounds per inch (0.66 N/mm) of width of tape when tested in accordance with 8.2 and 8.3. No individual specimen shall have a value of less than 3.20 pounds per inch (0.56 N/mm) of width. 8.2 The peel adhesion strengt
35、h of aluminum tape is to be determined in accordance with the Standard Test Methods for Peel Adhesion of Pressure-Sensitive Tape at 180 Degree Angle, ASTM D3330, except as modied in 8.3. Tests are to be conducted in accordance with Method A Single-Coated Tapes. 8.3 Three specimens from each of three
36、 separate rolls of tape are to be tested. Specimens are to be cut in 1 inch (25.4 mm) wide by 12 inch (305 mm) long strips. The tape is to be applied as specied in Standard Test Method for Peel Adhesion of Pressure-Sensitive Tape, ASTM D3330 to the specied stainless steel panel with a steel roller 5
37、 inches (127 mm) in diameter and 1-3/4 inches (44.5 mm) wide, weighing 10 pounds-mass (4.53 kg). The roller is to pass back and forth over each specimen ve times at a rate of 12 inches (304.8 mm) per minute. The test load is to be applied 15 minutes after completion of the rolling. 9 Shear Adhesion
38、Test 9.1 The shear adhesion strength of tape shall be such that the tape is able to maintain the test loads specied in Table 9.1 for the indicated test durations without evidence of separation or slippage in excess of 1/32 inch (0.8 mm). 9.2 The shear adhesion strength of aluminum tape is to be dete
39、rmined in accordance with Procedure A of the Standard Test Method for Shear Adhesion of Pressure-Sensitive Tapes, ASTM D3654, except as modied in 9.3 9.7. 9.3 One specimen from each of four separate rolls of tape are to be tested. Specimens are to be cut in 1 inch (25.4 mm) wide by 6-inch (152-mm) l
40、ong strips. The cut specimens and stainless steel panels are to be maintained at the application conditions specied in Table 9.1 for a minimum of 1 hour prior to applying the specimens to the panels. JANUARY 8, 2013 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 7UL COPYRIGHTED MATERIAL NOT
41、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 9.1 Shear adhesion test conditions Application conditions a Dwell time b Test conditions a Test load Test duration 40F (4.4C) dry substrate 15 minutes 40F (4.4C) 5 pounds (22.2 N) 6 hours 73.4F (23C), 50 percent RH
42、24 hours 73.4F (23C) 50 percent RH 10 pounds (44.5 N) 120 hours 73.4F (23C), 50 percent RH 15 minutes 150F (65.6C) 5 pounds (22.2 N) 6 hours a Application conditions and test conditions shall be controlled within 3.6F (2C) and 5 percent RH, where specied. b Dwell time is the time that the test speci
43、men is in contact with the test panel, at test conditions, after rolling but prior to the application of the test load. 9.4 After conditioning, a 2 inch (50.8 mm) length of specimen is to contact the panel. The tape is to be applied to the panel with a roller weighing 10 pounds-mass (4.53 kg). The r
44、oller is to pass back and forth over each specimen ve times at a rate of 12 inches (304.8 mm) per minute. Using a cutting jig or razor blade, the rolled portion of the specimen is to be trimmed toa1b y1inch (25.4 by 25.4 mm) square on the panel, such that the remaining test specimen measures 1 by 5
45、inches (25.4 by 127 mm) as shown in Figure 9.1. The tape is to dwell on the panel for the time specied in Table 9.1. This is generated text for gtxt. Figure 9.1 Shear adhesion apparatus JANUARY 8, 2013 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
46、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9.5 After dwelling, the clamp is to be placed on the free end of the specimen. The clamp is to extend completely across the width of the specimen and is to be aligned to uniformly distribute the load. The test load specied in Table 9.1
47、 is then to be applied to the clamp gently so as not to cause any shear impact force on the specimen. The load is to be applied for the test duration time specied in Table 9.1. 9.6 The test panel is to be positioned at 2 degrees from the vertical so that the back of the test substrate forms a 178 de
48、gree angle with the extended tape specimen. 9.7 Individual specimens of tape are to be tested in accordance with each of the conditions specied in Table 9.1. Specimens that rip or tear during this test and are unable to support the test load for the test duration specied because of the rip or tear s
49、hall be retested. 10 Peel Adhesion Test at 20 Degree Angle 10.1 Aluminum tape specimens shall support a load of 2 pounds (8.9 N) for a period of 24 hours when tested as specied in 10.2 and 10.3. A typical test stand is shown in Figure 10.1. This is generated text for gtxt. 10.2 Test specimens are to be prepared as described in 8.3. Test specimens are to be prepared and tested under ambient conditions of 73.4 3.6F (23 2C) and 50 5 percent relative humidity. Figure 10.1 Peel
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