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1、COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services n Underwriters laboratories 1nc.s Northbrook, Illinois* (847) 272-8600 Melville, New York. (516) 271-6200 Santa Clara, Callornia (408)
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7、atories Inc. Licensed by Information Handling Services MARCH 28,2000 - UL 1046 trl Underwriters Laboratories Inc. (UL) 333 Pfingsten Road Northbrook, IL 60062-2096 UL Standard for Safety for Grease Filters for Exhaust Ducts, UL 1046 Third Edition, Dated March 28, 2000 The master for this Standard at
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23、dicated 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that have been revised and that have a future effective date are located after the Standard, and are preceded by a ”SUPERSEDED REQUIREMENTS” notice. Copyright O 2000 Underwriters Laboratories Inc. This Standard consists
24、 of pages dated as shown in the following checklist: Page Date 1-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 28, 2000 COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handli
25、ng Services COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services MARCH 28,2000 1 UL 1046 Standard for Grease Filters for Exhaust Ducts First Edition - December, 1974 Second Edition -July, 1979 Third Edition March 28,2000 An effective date included as a note immediately
26、following certain requirements is one established by Underwriters Laboratories Inc. Revisions of this Standard will be made by issuing revised or additional pages bearing their date of issue. A UL Standard is current only if it incorporates the most recently adopted revisions, all of which are itemi
27、zed on the transmittal notice that accompanies the latest set of revised requirements. ISBN 0-7629-0532-8 COPYRIGHT 8 1974,2000 UNDERWRITERS LABORATORIES INC. COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPYRIGHT Underwriters Laboratories Inc. Licensed by Infor
28、mation Handling Services STD-UL LOYb-ENGL 2fliJ I 9275775 UAL7924 23b m GREASE FILTERS FOR EXHAUST DUCTS - UL 1046 MARCH 28,2000 2 No Text on This Page COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPYRIGHT Underwriters Laboratories Inc. Licensed by Information
29、Handling Services MARCH 28. 2000 GREASE FILTERS FOR EXHAUST DUCTS . UL 1046 3 CONTENTS FOREWORD 4 INTRODUCTION 1 Scope . 5 2 General 5 PERFORMANCE 3 Grease Loading Test 5 3.1 Test equipment 5 3.2 Test method . 9 4 Flame Exposure Test . 10 4.1 Test preparation . 10 4.2 Test method 10 5 Conditions of
30、Acceptance . 11 MARKING 6 General . 11 COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services 4 GREASE FILTERS FOR EXHAUST DUCTS - UL 1046 MARCH 28,2000 FOREWORD A. This Standard contains b
31、asic requirements for products covered by Underwriters Laboratories Inc. (UL) under its Follow-Up Service for this category within the limitations given below and in the Scope section of this Standard. These requirements are based upon sound engineering principles, research, records of tests and fie
32、ld experience, and an appreciation of the problems of manufacture, installation, and use derived from consultation with and information obtained from manufacturers, users, inspection authorities, and others having specialized experience. They are subject to revision as further experience and investi
33、gation may show is necessary or desirable. B. The observance of the requirements of this Standard by a manufacturer is one of the conditions of the continued coverage of the manufacturers product. C. A product which complies with the text of this Standard will not necessarily be judged to comply wit
34、h the Standard if, when examined and tested, it is found to have other features which impair the level of safety contemplated by these requirements. D. A product employing materials or having forms of construction which conflict with specific requirements of the Standard cannot be judged to comply w
35、ith the Standard. A product employing materials or having forms of construction not addressed by this Standard may be examined and tested according to the intent of the requirements and, if found to meet the intent of this Standard, may be judged to comply with the Standard. E. UL, in performing its
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37、state of the art at the time the Standard is processed. UL shall not be responsible to anyone for the use of or reliance upon this Standard by anyone. UL shall not incur any obligation or liability for damages, including consequential damages, arising out of or in connection with the use, interpreta
38、tion of, or reliance upon this Standard. F. Many tests required by the Standards of UL are inherently hazardous and adequate safeguards for personnel and property shall be employed in conducting such tests. COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPYRIGHT
39、Underwriters Laboratories Inc. Licensed by Information Handling Services STD-UL L04b-ENGl. 2000 927.5795 0837727 T 4 5 MARCH 28,2000 GREASE FILTERS FOR EXHAUST DUCTS - UL 1046 5 INTRODUCTION 1 Scope 1.1 Grease filters covered by these requirements are intended for installation and use in accordance
40、with the Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations, NFPA No. 96. 1.2 The test methods described in this Standard pertain to grease filters used primarily in exhaust systems with restaurant-type cooking equipment and intended for the removal of flammable gr
41、ease droplets in air streams. 1.3 Grease filters are investigated to determine their abilities to: a) Remove grease from grease-laden air; b) Drain off the collected grease in such a manner that it does not fall back onto the cooking surface: and c) Limit the projection of flames downstream when att
42、acked by flame on the upstream face, after exposure to grease-laden air. 2 General 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2 Any part of a grease filter that normally come in contact with the users hands during no
43、rmal usage shall be free from sharp edges or projections. PERFORMANCE 3 Grease Loading Test 3.1 Test equipment 3.1.1 The following equipment is to be used for this test: a) A hood designed to conform with the requirements of the Standard for Ventilation Control and Fire Protection of Commercial Cook
44、ing Operations, NFPA No. 96-1998, for holding two 20 by 20 inch (508 by 508 mm) grease filters at a 45 degree angle and equipped with a 16 inch (406 mm) square collar at the top for connection to an exhaust duct. The hood is also to be provided with a trough and collector cup for collecting grease d
45、raining from the filters. See Figure 3.1. b) An exhaust duct, 16 inches (406 mm) square, equipped with an exhaust blower and a damper to permit adjustment of the air velocity through the grease filter. c) A gas-fired broiler, 26 inches (660 mm) long and 12-3/4 inches (324 mm) wide. d) A pan, 30 inch
46、es (762 mm) long, 10 inches (254 mm) wide, and 8 inches (203 mm) high, provided with a two-piece lid providing an opening about 1-1/2 inches (37.5 mm) wide and 30 inches (762 mm) long. See Figures 3.2 and 3.3. One side of the lid is provided with a funnel for directing oil and water drops to the bot
47、tom of the pan. COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services e) One-gallon metal containers for water and cooking oil with appropriate copper tubing and cocks for regulating flow.
48、 f) An inclined draft gauge, connected to a static pressure tap, is to be used to measure static pressure in the duct downstream of the filter. g) The cooking oil utilized is to be of the pure vegetable oil type. COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPY
49、RIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services MARCH 28,2000 GREASE FILTERS FOR EXHAUST DUCTS - UL 1046 7 Figure 3.1 Test apparatus 1 24 I 1 I I I COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services COPYRIGHT Underwriters Laboratories Inc. Licensed by Information Handling Services a GREASE FILTERS FOR EXHAUST DUCTS - UL 1046 MARCH 28,2000 Figure 3 . 2 Pan . j L I 8 - 1 / 8 REAR COVER HALF 3 1 4 f t 5-118 i Conversion Factors S2413 m INCH - m - INCH - 3/8 9 . 5 4 T 2 114. 3/4 19.0 4 7/8 1 2 4 . 1 25.4 5 127.