1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 711, Rating and Fire Testing of Fire Extinguishers STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL No Text on Th
2、is PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Rating and Fire Testing of Fire Extinguishers, UL 711 Eighth Edition, Dated August 6, 2018 Summary of Topics This New Edition of of ANSI/ UL 711 includes the f
3、ollowing changes in requirements: Class C extinguisher test Update Commercial Grade Heptane Specications The new/revised requirements are substantially in accordance with Proposal(s) on this subject dated October 27, 2017. All rights reserved. No part of this publication may be reproduced, stored in
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5、f 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 use of or the inability to use this Standard, even if UL or
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8、PYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 6, 2018 UL 711 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Prepared by: ULC Standards CAN/ULC-S508:2018
9、Fifth Edition Underwriters Laboratories Inc. ANSI/UL 711 Eighth Edition Rating and Fire Testing of Fire Extinguishers August 6, 2018 ANSI/UL 711-2018UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This Standard is i
10、ssued jointly by Underwriters Laboratories Inc. (UL) and ULC Standards. Amendments to this Standard will be made only after processing according to the Standards writing procedures by UL and ULC Standards. UL and ULC Standards are separate and independent entities and each is solely responsible for
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12、 Standards All rights reserved. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, whatsoever without the prior permission of the publisher. In Canada, written comments are to be sent to ULC Standards, 400 171 Nepean Street, Ottawa, Ontario KP2
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14、and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Eighth Edition. The most recent designation of ANSI/UL 711 as an American National Standard (ANSI) occurred on August 6, 2018. ANS
15、I approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The Department of Defense (DoD) has adopted UL 711 on July 2, 1990. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Comm
16、ents 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 https:/. To purchase UL Standards, visit ULs Standards Sales Site at http:/ HowToOr
17、der.aspx or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .4 INTRODUCTION 1 Scope .5 2 Units of measurement .5 3 Reference publications 5 4 Glossary .5 5 Ratings 6 PERFORMANCE 6 General 7 7 Cl
18、ass A extinguishers .7 7.1 General .7 7.2 Wood crib re test 8 7.3 Wood panel re test 9 8 Class B extinguishers 11 8.1 General 11 8.2 Flammable liquid re test .12 9 Class C extinguishers 13 9.1 General 13 9.2 Electrical conductivity test 14 10 Class D extinguishers and agents 15 10.1 General .15 10.2
19、 Magnesium re tests16 10.3 Sodium, potassium, and sodium-potassium alloy re tests.19 11 Class K extinguishers .20 11.1 General .20 11.2 Fryer re test method .21 TABLES FIGURES ANNEX A AUGUST 6, 2018 CAN/ULC-S508:2018 ANSI/UL 711 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIS
20、TRIBUTION WITHOUT PERMISSION FROM UL Preface This is the common UL and ULC Standard for Rating and Fire Testing of Fire Extinguishers. It is the fth edition of CAN/ULC-S508, and the eighth edition of ANSI/UL 711. This Joint Standard was prepared by Underwriters Laboratories Inc., ULC Standards, and
21、the UL/ULC Extinguisher Technical Harmonization Committee. The efforts and support of the Harmonization Technical Committee are gratefully acknowledged. Only metric SI units of measurement are used in this Standard. If a value for measurement is followed by a value in other units in parentheses, the
22、 second value may be approximate. The rst stated value is the requirement. In Canada, there are two official languages, English and French. All safety warnings must be in French and English. Attention is drawn to the possibility that some Canadian authorities may require additional markings and/or i
23、nstallation instructions to be in both official languages. Note: Although the intended primary application of this Standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level of
24、Harmonization This Standard is published as an identical standard between UL and ULC Standards. An identical standard is a standard that is exactly the same in technical content except for national differences resulting from conicts in codes and governmental regulations. Presentation is word for wor
25、d except for editorial changes. Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rules of the standards development organization
26、. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. AUGUST 6, 2018 CAN/ULC-S508:2018 ANSI/UL 711 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
27、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover rating, and performance during re tests, of re extinguishers intended for use in attacking Class A, B, C, D, and K res as dened herein. These requirements also cover performance during re
28、 tests of re extinguishing agents for application on Class D res. The ultimate rating of an extinguisher or the prescribed use of an extinguisher or re extinguishing agent is based on its re-extinguishing potential as determined by re tests and presupposes installation and use in accordance in the U
29、nited States with the Standard for Portable Fire Extinguishers, NFPA 10, and with the National Fire Code of Canada. 1.2 Fire extinguishers, re extinguishing agents, or both shall also comply with the requirements for construction and performance as applicable to specic types, designs, sizes, and arr
30、angements. Such additional requirements include ANSI/UL 8 CAN/ULC S554, ANSI/UL154 CAN/ULC S503, ANSI/UL299 CAN/ULC S504, ANSI/UL 626 CAN/ULC S507, and ANSI/ UL2129 CAN/ULC S566 and are not within the scope of these requirements. 2 Units of measurement 2.1 The metric unit shall be designated as the
31、official unit for purposes of this standard. Where values of measurement are specied in both SI and English units, either unit is used. In cases of dispute, the metric unit shall be used. 3 Reference publications 3.1 See Annex A for a list of publications referenced in this standard. Any undated ref
32、erence 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. When the latest edition of a standard is not applicable, the appropriate edition is indicated accordingly in Annex A. 4 Glossary 4.1 For the p
33、urpose of this standard the following denitions apply. 4.2 AFFF Aqueous lm-forming foam. 4.3 AUTOIGNITION TEMPERATURE The temperature at which the test fuel ignites automatically. 4.4 CONTROL A reduction in re intensity of approximately 90 percent. 4.5 EFFECTIVE DISCHARGE The time of discharge of ex
34、tinguishing agent from the extinguisher until gas point. 4.6 FFFP Film-forming uoroprotein. AUGUST 6, 2018 CAN/ULC-S508:2018 ANSI/UL 711 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.7 GAS POINT The point in time when the discharge chan
35、ges from the extinguishing agent alone to a gas and extinguishing agent combination. 4.8 LETTER DESIGNATIONS The letter designates the general class of re for which the extinguisher or agent is acceptable: Class A Fires Fires that involve ordinary combustible materials such as wood, cloth, paper, ru
36、bber, and many plastics. Class B Fires Fires that involve ammable liquids, oils, petroleum greases, tars, oil-base paints, solvents, lacquers, alcohols, and ammable gases. Class C Fires Fires that involve energized electrical equipment where the electrical nonconductivity of the re extinguishing age
37、nt as discharged is of importance. (When electrical equipment is de-energized, extinguishers rated for Class A or B res are used.) Class D Fires Fires that involve combustible metals, such as magnesium, titanium, zirconium, sodium, lithium, and potassium. Class K Fires Fires that involve cooking app
38、liances with ammable cooking oils and fats, vegetable or animal. 4.9 NUMERAL DESIGNATIONS The numeral that indicates the extinguishing potential of a re extinguisher. 4.10 UNBURNED WOOD The minimum clear, uncharred area where the thickness is measured across the smallest dimension of the test member
39、 following a re test. 5 Ratings 5.1 Extinguishers are classed and rated according to their re extinguishing potential which is indicated by numeral and letter designations. 5.2 The numerical portion of Class A ratings of extinguishers is developed on the basis of comparative re tests using various s
40、izes of wood-crib and wood-panel. 5.3 The numerical portion of Class A ratings of large sizes of extinguishers (usually wheeled) is developed on the basis of wood-crib res only. 5.4 The numerical portion of Class B ratings of extinguishers is developed on the basis of re tests using square steel pan
41、s in specic size increments and a ammable liquid test fuel similar to commercial grade heptane. The re extinguishing classication is equivalent to 40 percent of the area of re consistently extinguished by an expert operator. The numeral thus derived is an approximate indication of the relative re ex
42、tinguishing potential of the extinguisher. 5.5 There are no numerical components for Class C ratings of extinguishers, as only the electrical nonconducting characteristics of the agent when being discharged are signicant, and no effort is made to indicate the extinguishing potential for res that inv
43、olve electrical equipment. AUGUST 6, 2018 CAN/ULC-S508:2018 ANSI/UL 711 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.6 There are no numerical components for Class D ratings of extinguishers. Extinguishers and agents for use on Class D
44、(combustible metals) res are rated for the amount of agent and the method of application needed to control re involving a particular quantity and type of metal. 5.7 There are no numerical components for Class K ratings of extinguishers, as the re extinguishing characteristics of the extinguisher hav
45、e only been determined for a single size re source. 5.8 Extinguishing agents are classed according to the general class of re for which the agent is acceptable, expressed by letter designation, where applicable. They are also rated for relative extinguishing effectiveness according to the amount of
46、re, of a given class, repeatedly extinguished. PERFORMANCE 6 General 6.1 Wood crib re tests for Rating-Class up to and including 10-A, wood panel re tests and ammable liquid re tests for Rating-Class up to and including 20-B are to be conducted in an essentially draft-free room having a volume large
47、 enough to assure a supply of oxygen and visibility for the duration of the test. A room having a ceiling height of approximately 7.5 m (24 ft), a volume of at least 1600 m 3 (57,000 ft 3 ), and a total vent area of at least 4.5 m 2 (50 ft 2 ) meets the intent of this requirement. The room is to hav
48、e a smoothly nished concrete oor. For a Rating-Class 20-A and larger, the tests are to be conducted outdoors under conditions of essentially still air 5 km/h (3 mph) or less and no precipitation. Flammable-liquid re tests for a Rating-Class up to and including 20-B are to be conducted in a large-vol
49、ume, essentially draft-free room. For a Rating-Class exceeding 20-B the tests may be conducted outdoors. Outdoor re tests are to be conducted under conditions of steady breeze 5 13 km/h (3 8 mph) with gusts not greater that 16 km/h (10 mph) and no precipitation. 6.2 All re tests are to be conducted by experienced personnel. The operator of the extinguisher is to be protected against heat by wearing a safety
