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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 900 Air Filter Units UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRO
2、DUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Underwriters Laboratories Inc. (UL) 333 Pfi ngsten Road Northbrook, IL 60062-2096 UL Standard for Safety for Air Filter Units, UL 900 Seventh Edition, Dated September 2, 2004 Revisions: This Standard contains revisions through and including November
3、 28, 2007. Summary of Topics This revision to ANSI/UL 900 is being issued to address universal upkeep of UL Standards for Safety. These revisions are considered to be non-substantive and not subject to ULs STP process. Text that has been changed in any manner is marked with a vertical line in the ma
4、rgin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The revisions dated November 28, 2007 include a reprinted title page (page1) for t
5、his Standard. As indicated on the title page (page 1), this UL Standard for Safety is an American National Standard. Attention is directed to the note on the title page of this Standard outlining the procedures to be followed to retain the approved text of this ANSI/UL Standard. The UL Foreword is n
6、o longer located within the UL Standard. For information concerning the use and application of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfoNet at: http:/ The master for this Standard at ULs Northbrook Office is the official documen
7、t insofar as it relates to a UL service and the compliance of a product with respect to the requirements for that product and service, or if there are questions regarding the accuracy of this Standard. ULs Standards for Safety are copyrighted by UL. Neither a printed copy of a Standard, nor the dist
8、ribution diskette for a Standard-on-Diskette and the fi le for the Standard on the distribution diskette should 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. All rights reserved. No
9、 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. Revisions of UL Standards for Safety are issued from time to time. A UL Standard for Safety
10、 is current only if it incorporates the most recently adopted revisions. 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 fi tness for any purpose. NOVEMBER 28, 2007 UL 900tr1 -,-,- U
11、L COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of profi ts, lost savings, loss of data, or any other damages arising out of
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16、rchaser is storing an electronic Standard on the purchasers computer system. If a single-user version electronic Standard was purchased, one copy of this Standard may be stored on the hard disk of a single personal computer, or on a single LAN fi le-server or the permanent storage device of a multip
17、le-user computer in such a manner that this Standard may only be accessed by one user at a time and for which there is no possibility of multiple concurrent access. If a multiple-user version electronic Standard was purchased, one copy of the Standard may be stored on a single LAN fi le-server, or o
18、n the permanent storage device of a multiple-user computer, or on an Intranet server. The number of concurrent users shall not exceed the number of users authorized. Electronic Standards are intended for on-line use, such as for viewing the requirements of a Standard, conducting a word search, and t
19、he like. Only one copy of the Standard may be printed from each single-user version of an electronic Standard. Only one copy of the Standard may be printed for each authorized user of a multiple-user version of an electronic Standard. Because of differences in the computer/software/printer setup use
20、d by UL and those of electronic Standards purchasers, the printed copy obtained by a purchaser may not look exactly like the on-line screen view or the printed Standard. An employee of an organization purchasing a UL Standard can make a copy of the page or pages being viewed for their own fair and/o
21、r practical internal use. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, fi 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
22、been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. New product submittals made prior to a specifi ed future effective date will be judged under all of the requirements in this Standard including those requirements
23、with a specifi ed future effective date, unless the applicant specifi cally requests that the product be judged under the current requirements. However, if the applicant elects this option, it should be noted that compliance with all the requirements in this Standard will be required as a condition
24、of continued Listing and Follow-Up Services after the effective date, and understanding of this should be signifi ed in writing. Copyright 2007 Underwriters Laboratories Inc. NOVEMBER 28, 2007 UL 900tr2 -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER
25、MISSION FROM UL This Standard consists of pages dated as shown in the following checklist: PageDate 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . November 28, 2007 4-10. . . . . . . . . . . . . . .
26、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . September 2, 2004 NOVEMBER 28, 2007 UL 900tr3 UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 28, 2007 UL 900tr4 No Te
27、xt on This Page -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 2, 2004 (Title Page Reprinted: November 28, 2007) 1 UL 900 Standard for Air Filter Units The First, Second and Third editions were titled Air Filter Units. The F
28、ourth and Fifth editions were titled Test Performance of Air Filter Units. First Edition September, 1965 Second Edition August, 1971 Third Edition June, 1975 Fourth Edition June, 1977 Fifth Edition January, 1987 Sixth Edition November, 1994 Seventh Edition September 2, 2004 The most recent designati
29、on of ANSI/UL 900 as an American National Standard (ANSI) occurred on August 23, 2004. The ANSI approval for this standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. This ANSI/UL Standard for Safety consists of the Seventh edition including revisio
30、ns through November 28, 2007. Comments or proposals for revisions 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 http:/. ULs Standards for Safety are copyrighted
31、by UL. Neither a printed nor electronic copy of a Standard should 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 2007 UNDERWRITERS LABORATORIES INC. ANSIUL 900-2004 UL COPY
32、RIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 28, 2007AIR FILTER UNITS - UL 9002 No Text on This Page -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION
33、1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2 Classifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、. . . . . . . . . . . . . . .4 3 Units of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 4 Undated References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35、. . . . . . . . . . . . . . . . . . .4 5 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 PERFORMANCE 6 Performance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . .
36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 7 Flame-Exposure Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 8 Spot-Flame Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
37、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 MARKING 9 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 NOVEMBER 28, 2007AIR FILTER UNITS - UL 9003 -,-
38、,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover tests to determine combustibility and the amount of smoke generated for air fi lter units of both washable and throwaway types used for remo
39、val of dust and other airborne particles from air circulated mechanically in equipment and systems installed in accordance with the Standards for Installation of Air Conditioning and Ventilating Systems, NFPA 90A (Other Than Residence Type), and for Installation of Warm Air Heating and Air Condition
40、ing Systems, NFPA 90B (Residence Type). 1.2 Since the combustibility and smoke generation of an air fi lter unit, after a period of service, depends upon the nature and quantity of the material collected by the fi lter, the test requirements of this standard, for classifi cation purposes, apply only
41、 to air fi lter units in a clean condition. Consequently, when fi lters are susceptible to the accumulation of combustible deposits, it is intended that maintenance and inspection practices should be followed as proposed in Appendix B of NFPA 90A. 2 Classifi cations 2.1 Air fi lter units covered by
42、this standard are classifi ed as follows: a) Class 1 Units Those that, when clean, do not contribute fuel when attacked by fl ame and emit only negligible amounts of smoke. b) Class 2 Units Those that, when clean, burn moderately when attacked by fl ame or emit moderate amounts of smoke, or both. 3
43、Units of measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4 Undated References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to t
44、he latest edition of that code or standard. SEPTEMBER 2, 2004AIR FILTER UNITS - UL 9004 -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 General 5.1 Air fi lter units shall not contain unbonded asbestos fi ber materials. PERFORMANCE 6
45、 Performance Requirements 6.1 A Class 1 air fi lter unit shall not produce fl ame or sparks when subjected to the Flame-Exposure Test, Section 7. During the fl ame-exposure test, the Class 1 air fi lter unit shall not cause the development of an area of more than 16.1 cm2(2-1/2 square inches) as mea
46、sured below the smoke-density time curve. 6.2 When tested as specifi ed in Section 8, Spot-Flame Test, the upstream face of a Class 1 fi lter shall not continue to fl ame after removal of the test fl ame. 6.3 A Class 2 air fi lter unit shall not produce fl ame or extensive (25 or more) sparks which
47、are sustained beyond the discharge end of the test duct when subjected to the fl ame-exposure test and shall not cause the development of an area of more than 58 cm2(9 square inches) as measured below the smoke-density time curve. 6.4 An adhesive material used for coating the fi ltering medium or ot
48、her part of an air fi lter unit shall have a fl ash point of not less than 163C (325F) as determined by the Test Method for Flash and Fire Points by Cleveland Open Cup, ASTM D92. 7 Flame-Exposure Test 7.1 The fl ame-exposure test apparatus is to consist of an air duct provided with means for supporting a sample air fi lter unit and to expose the air fi lter unit to an igniting fl ame under controlled conditions of air velocity. The apparatus is to provide means for ob