1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 181A Closure Systems for Use With Rigid Air DuctsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORI
2、ZED 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 new edition of ANSI/UL 181A includes the following changes in requirements: Add refere
3、nces to major Codes that reference UL 181A Editorial change The revised requirements are substantially in accordance with Proposal(s) on this subject dated September 7, 2012. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form
4、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 implied warranties of merchantability or tness for any purpose. In n
5、o 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 Standard, even if UL or an authorized UL representative has been advised
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7、s, 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. The requirements in this Standard are now in effect, except for those paragrap
8、hs, 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 for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SU
9、PERSEDED REQUIREMENTS notice. JANUARY 8, 2013 UL 181A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 8, 2013 UL 181A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT
10、PERMISSION FROM UL JANUARY 8, 2013 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 With Air Ducts and Connectors, Subject
11、 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 an American National Standard (ANSI) occurred on Janu
12、ary 8, 2013. The ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. This ANSI/UL Standard for Safety consists of the Fourth Edition. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any
13、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 ULs Standards and all copyri
14、ghts, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 181A-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 8, 2013 CLOSURE
15、 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 Units of Measurement .5 4 Undated References 6 5 Referenced Standards .6
16、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 Test at 20 Degree Angle 9 11 Surface Burning Characteristics Test 10
17、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 PERFORMANCE 17 Tensile Strength Test .15 18 Peak Adhesion Test at 180 Deg
18、ree 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, 2013 CLOSURE SYSTEMS FOR USE WITH RIGID AIR DUCTS - UL 181A 3UL C
19、OPYRIGHTED 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 Glossary .22 PERFORMANCE 28 Tensile Joint Strength Test .22 29 Adhesio
20、n 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 Installation Instructions 30 JANUARY 8, 2013 CLOSURE SYSTEMS FOR USE WITH R
21、IGID 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 ducts or air connectors complying with the Standard for Factory-M
22、ade 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 International Mechanical Code (IMC), International Residential Code (IRC),
23、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 Conditioning Systems, NFPA 90B; and/or other Model codes. 2 Components
24、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 or characteristic not required in the application of the component
25、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 incomplete in construction features or restricted in performance capab
26、ilities. 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 without parentheses are the requirement. Values in parentheses are ex
27、planatory 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 References 4.1 Any undated reference to a code or standard appearing in t
28、he 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 Test Method for Breaking Strength and Elongation of Pressure-Sens
29、itive 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 Elastomeric Joint Sealants UL 181 Standard for Factory-Made Air Ducts and A
30、ir 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 on one side with adhesive. The adhesive surface shall be protecte
31、d 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 WITHOUT PERMISSION FROM UL PERFORMANCE 7 Tensile Strength Test 7.1 The
32、 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 per inch (3.67 N/mm) of width, determined in accordance with the
33、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 separate rolls of tape shall be prepared with a laboratory specimen
34、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 8.1 The average peel adhesion strength of aluminum tape shall be n
35、ot 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 strength of aluminum tape is to be determined in accordance with the Stan
36、dard 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 separate rolls of tape are to be tested. Specimens are to be cut
37、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 inches (127 mm) in diameter and 1-3/4 inches (44.5 mm) wide, weig
38、hing 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 Test 9.1 The shear adhesion strength of tape shall be such that th
39、e 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 determined in accordance with Procedure A of the Standard Test Method
40、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) long strips. The cut specimens and stainless steel panels are to be
41、 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 AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMIS
42、SION 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 24 hours 73.4F (23C) 50 percent RH 10 pounds (44.5 N) 120 hours 73
43、.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 specimen is in contact with the test panel, at test conditions, after r
44、olling 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 roller is to pass back and forth over each specimen ve times at a r
45、ate 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 inches (25.4 by 127 mm) as shown in Figure 9.1. The tape is to dwe
46、ll 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 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9
47、.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 is then to be applied to the clamp gently so as not to cause any
48、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 degree angle with the extended tape specimen. 9.7 Individual specime
49、ns 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 shall 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. Thi
