UL-2221-BULLETINS-2003.pdf
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1、Subject 2221 (In reply, refer to Subject 2221)12 Laboratory Drive Research Triangle Park, NC 27709 November 4, 2003 TO:Standards Technical Panel (STP) for Grease Ducts (STP 1978); Subscribers to ULs Standards Service for Tests of Fire Resistive Grease Duct Enclosure Assemblies, UL 2221; Other Intere
2、sted Parties SUBJECT:Request for ANSI Approval of the First Edition of the Standard for Tests of Fire Resistive Grease Duct Enclosure Assemblies, UL 2221; INSTRUCTIONS STP Members: If you are a voting member of the STP, complete the attached ballot with your vote on the standard. Please note that al
3、l negative ballots must be accompanied by supporting written reasons and, where possible, proposals for a solution to the problem raised. Subscribers and other interested parties: If you are a subscriber or other interested party, your comments concerning the ANSI approval of UL 2221 should be forwa
4、rded to the STP Secretary. The STP member ballot should not be used to submit your comments. Comments should be made in writing and may be sent by fax to (919) 316-5629 or by mail to the attention of Tori Burnett at ULs Research Triangle Park office. Comments may also be sent via E-mail to Victoria.
5、B. Please reference all correspondence to Subject 2221. Note all comments received are public and may be circulated to others. If you respond by fax or E-mail, please include your full name and company name and address to ensure a reply. SUMMARY OF TOPICS This bulletin contains the fi rst edition of
6、 UL 2221, Tests of Fire Resistive Grease Duct Enclosure Assemblies. UL is seeking fi rst time recognition of UL 2221 as an American National Standard. No changes, editorial or otherwise, have been made to UL 2221. STP BALLOTS AND ALL COMMENTS DUE: December 2, 2003 Copyright Underwriters Laboratories
7、 Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/16/2007 23:02:31 MDTNo reproduction or networking permitted without license from IHS -,-,- Attached as Appendix A for your review and comment is the First Edition of UL 2221. Attached a
8、s Appendix B is the STP membership roster. Attached as Appendix C and D is the STP ballot. Questions regarding interpretation of requirements should be directed to the responsible UL Staff. Please see Appendix E of this bulletin regarding designated responsibility for the subject product categories.
9、 UNDERWRITERS LABORATORIES INC. TORI BURNETT Secretary for STP 1978 Standards Department Underwriters Laboratories Inc. RESEARCH TRIANGLE PARK DIVISION Phone: (919) 549-1426 Fax: (919) 316-5629 E-mail: Victoria.B http:/ REVIEWED BY: DAN RYAN Chair for STP 1978 Corporate Standards Underwriters Labora
10、tories Inc. RESEARCH TRIANGLE PARK DIVISION Phone: (919) 549-1658 Fax: (919) 547-6399 E-mail: Daniel.P.R Copyright 2003 Underwriters Laboratories Inc. SR: JAH bul-2221.1_20031002 NOVEMBER 4, 2003SUBJECT 2221-2- Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IH
11、S Employees/1111111001, User=Wing, Bernie Not for Resale, 03/16/2007 23:02:31 MDTNo reproduction or networking permitted without license from IHS -,-,- APPENDIX A THE FIRST EDITION OF THE STANDARD FOR TESTS OF FIRE RESISTIVE GREASE DUCT ENCLOSURE ASSEMBLIES, UL 2221 NOVEMBER 4, 2003SUBJECT 2221-A1-
12、Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/16/2007 23:02:31 MDTNo reproduction or networking permitted without license from IHS -,-,- CONTENTS INTRODUCTION 1 Scope . . . . . . . . . . . . . . .
13、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A4 2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A5 2.1 Uni
14、ts of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A5 2.2 Undated references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A5 3 Glossary . . . . . .
15、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A5 PERFORMANCE MATERIAL REQUIREMENTS 4 Surface Burning Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . .A6 4.1 Test method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A6 4.2 Performance criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、 . . . . . . .A6 5 Serviceability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A6 5.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、. . . . . . . . . . . . . . . .A6 5.2 Hot-Surface Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A6 5.3 Steady-State Thermal Transmission Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A7 6 Nonco
19、mbustibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A7 6.1 Test method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A7
20、 6.2 Performance criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A8 ASSEMBLY REQUIREMENTS 7 Internal Fire Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21、 . . . . . . . . . . . .A8 7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A8 7.2 Test specimen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22、 . . . . . . . . . . . . .A8 7.3 Temperature exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A10 7.4 Temperature measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A
23、12 7.5 Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A18 7.6 Conduct of fi re test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
24、.A19 7.7 Acceptance criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A20 8 External Fire Tests, General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A21 8.
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