1、Designation: E2336 04 (Reapproved 2013)E2336 14 An American National StandardStandard Test Methods forFire Resistive Grease Duct Enclosure Systems1This standard is issued under the fixed designation E2336; the number immediately following the designation indicates the year oforiginal adoption or, in
2、 the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONThe protection of grease ducts under fire exposure conditions is an item of importa
3、nce in securingconstructions that are safe, and that are not a menace to neighboring construction nor to the public.Recognition of this is registered in the codes of many authorities, municipal and other agencies. Manytypes of enclosure materials are used to protect grease ducts. Normally, these enc
4、losure materials areeither applied to grease ducts in the field or are fabricated as part of the grease duct when shipped fromthe factory. Evaluating enclosure materials used to protect a grease duct from fire is an aid forpredicting their fire performance and promotes uniformity in requirements of
5、various authorities. Todo this it is necessary that the fire-endurance properties of enclosure materials be measured andspecified according to a common standard expressed in terms that are applicable alike to a wide varietyof materials, situations, and conditions of exposure.1. ScopeNOTE 1The majori
6、ty of this standard is based on the Model Building Code Evaluation Service2 Acceptance Criteria titled ACCEPTANCE CRITERIAFOR GREASE DUCT ENCLOSURE ASSEMBLIES, AC101, which was created in 1994. Numerous design listings and labeled materials exist based onthe provisions of this standard.1.1 These tes
7、t methods evaluate the enclosure materials and the grease duct enclosure systems using the following test methods:noncombustibility, fire resistance, durability, internal fire, and fire-engulfment with a through-penetration fire stop.1.2 These test methods prescribe a standardized fire exposure for
8、comparing the test results of the enclosure materials and greaseduct enclosure systems. The results of these tests are one factor in assessing predicted fire performance of grease duct enclosuresystems. Using these test results to predict the performance of actual grease duct enclosure systems requi
9、res the evaluation of testconditions.1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.4 The text of these test methods references
10、notes and footnotes which provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be considered as requirements of the fire test response standard.1.5 These test methods are used to measure and describe the response of materials, products, or assembli
11、es to heat and flameunder controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of thematerials, products, or assemblies under actual fire conditions.1.6 These test methods do not purport to address all of the safety concerns, if any,
12、associated with its use. It is the responsibilityof the user of these test methods to establish appropriate safety and health practices and to determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3C518 Test Method for Steady-State Thermal Transm
13、ission Properties by Means of the Heat Flow Meter Apparatus1 This test method is under the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibility of Subcommittee E05.11 on Fire Resistance.Current edition approved July 1, 2013Aug. 1, 2014. Published August 2013September
14、 2014. Originally approved in 2004. Last previous edition approved in 20042013as E233604(2009).E233604(2013). DOI: 10.1520/E2336-04R13.10.1520/E2336-14.2 ICC Evaluation Service, Inc. (ICBO Evaluation Service, Inc.) 5360 Workman Mill Road, Whittier, CA 90601-22983 For referencedASTM standards, visit
15、theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard
16、an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is
17、to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1C569 Test Method for Indentation Hardness of Preformed Thermal Insulations (Withdrawn 1988)4E84 Test Method for Surface Burning Characteristics of
18、Building MaterialsE119 Test Methods for Fire Tests of Building Construction and MaterialsE136 Test Method for Behavior of Materials in a Vertical Tube Furnace at 750CE176 Terminology of Fire StandardsE631 Terminology of Building ConstructionsE814 Test Method for Fire Tests of Penetration Firestop Sy
19、stems2.2 Other Documents:UL 385 Standard for Play Pipes for Water Supply Testing in Fire-Protection Service53. Terminology3.1 Definitions: For definitions of terms used in this test method associated with fire issues refer to the definitions contained inTerminology E176 and for building issues refer
20、 to the definitions contained in Terminology E631. When there is a conflict betweenTerminology E176 and Terminology E631 definitions, the definitions in Terminology E176 shall apply.3.2 Definitions:Definitions of Terms Specific to This Standard:For the purpose of this fire test response standard, th
21、e definitionsgiven in Terminologies E176 and E631, together with the following, shall apply:3.2.1 enclosure material, nthe product applied to the grease duct to provide fire resistance.3.2.2 fire-separating element, nfloors, walls, and partitions having a period of fire resistance determined in acco
22、rdance withfire resistance test methods such as Test Methods E119.3.2.3 fire side, adjthe face of the test assembly or test specimen exposed to the heat or flame or both of the test apparatus.3.2.4 grease duct (also known as kitchen exhaust grease duct), na tube or conduit utilized for conveying air
23、.3.2.4.1 DiscussionIt is usually equipped with an access opening for cleaning the orifice.3.2.5 grease duct enclosure system, nconsists of the grease duct, an enclosure material(s), a support and fastening system, andan access opening for cleaning the grease duct.3.2.6 orifice, nthe continuous hollo
24、w area or opening within the grease duct or combustion chamber.3.2.7 supporting construction, nthe arrangement of building sections forming the fire-separating elements into which thegrease duct enclosure system is installed.3.2.8 test assembly, nthe complete assembly composed of a test specimen(s)
25、together with its supporting construction.3.2.9 test specimen, na material, product, or assemblage of a specific design, composition, density, and dimensions.3.2.9.1 Discussionthe enclosure material or the grease duct enclosure system are examples of test specimens.3.2.10 unexposed side, nthe face o
26、r part not directly exposed to the heat or flame or both of the test apparatus.3.2.11 unexposed surface thermocouple, ntemperature-measuring device placed on the unexposed side.4. Summary of Test Method4.1 Representative test specimens of the enclosure material or the grease duct enclosure system ar
27、e subjected to the followingtests. These test methods describe the following test sequence and procedures:4.1.1 A noncombustibilty test, Test Method E136, demonstrates the enclosure materials ability to resist combustion at astandardized temperature and duration.4.1.2 A fire resistance test, Test Me
28、thods E119, illustrates the ability of the enclosure material to resist the effects of fire whenapplied in a vertical application.4.1.3 A durability test intended to simulate the effects of long-term exposure of typical in-service conditions on the thermaltransmission qualities of the enclosure mate
29、rials when subjected to a modified version of Test Method C518.4.1.4 An internal fire test uses two standardized fire exposures occurring inside the grease duct. Both tests illustrate theenclosure materials ability to resist thermal transmission of heat to the unexposed side in a horizontal applicat
30、ion. The firststandardized fire exposure is intended to simulate long term exposure of the enclosure material to a standardized service condition.The second standardized fire exposure is intended to simulate a standardized grease fire.4 The last approved version of this historical standard is refere
31、nced on www.astm.org.5 Available from Underwriters Laboratories (UL), Corporate Progress, 333 Pfingsten Rd., Northbrook, IL 60062.E2336 1424.1.5 A fire-engulfment test uses a standardized fire exposure, the time temperature curve of Test Methods E119, to simulatea fire occurring on the outside of th
32、e grease duct, and demonstrates the ability of the grease duct enclosure system to remain intactwithout a through opening. The fire-engulfment test also tests the fastening methods used to secure the enclosure material to thegrease duct and the supporting system. The fire-engulfment test also provid
33、es a means to test a through-penetration fire stop todetermine its compatibility with the grease duct enclosure system.5. Significance and Use5.1 These test methods are intended to evaluate the ability of the grease duct enclosure system to do the following:5.1.1 Resist the effects of a standardized
34、 fire exposure,5.1.2 Retain its integrity, or5.1.3 Exhibit both properties dependent upon the type of test assembly involved during a predetermined test exposure.5.2 These test methods provide for the following measurements and evaluations where applicable:5.2.1 Capability of the enclosure material
35、to resist flaming (combustion) when exposed to 1382F (750C).5.2.2 Loadbearing ability of the tested support system and fastening system to carry the load of the grease duct enclosure systemduring a standardized fire-engulfment test.5.2.3 Ability of a fire stop to meet the requirements of Test Method
36、 E814 when used with a grease duct enclosure system.5.2.4 Ability of the enclosure material to resist the passage of flames and hot gases during a standardized fire resistance test anda standardized internal fire test.5.2.5 Transmission of heat through the grease duct and the enclosure material(s) d
37、uring a standardized fire resistance test anda standardized internal fire test.5.2.6 Ability of the grease duct enclosure system to resist the passage of water during a standardized hose stream test.5.2.7 Comparative measurement of temperature aging of the enclosure material(s) when subjected to sta
38、ndardized cyclicthermal transmissions.5.3 These test methods do not provide the following:5.3.1 Full information as to performance of the enclosure material or the grease duct enclosure system constructed withcomponents, densities, or dimensions other than those tested.5.3.2 Evaluation of the degree
39、 by which the enclosure material or grease duct enclosure system contributes to the fire hazardby generation of smoke, toxic gases, or other products of combustion.5.3.3 Measurement of the degree of control or limitation of the passage of smoke or products of combustion through the greaseduct enclos
40、ure system.5.3.4 Measurement of flame spread over the surface of the grease duct enclosure system.NOTE 2The information in 5.3.2 5.3.4 is usually determined by other suitable test methods. For example, 5.3.4 is typically determined using TestMethod E84.5.4 In these test methods, the test specimens a
41、re subjected to one or more specific tests under laboratory conditions. Whendifferent test conditions are substituted or the end-use conditions are changed, it is not always possible by, or from, these testmethods to predict changes to the characteristics measured. Therefore, the results of these la
42、boratory tests are valid only for theexposure conditions described in these test methods.5.5 Various test methods in these test methods require a test specimen to be exposed to a standard fire that is controlled toachieve specified temperatures throughout a specified time period. The fire-engulfment
43、 and vertical fire resistance tests arefollowed by the application of a standardized hose stream test. These test methods provide a relative measure of thefire-test-response of comparable enclosure materials and grease duct enclosure systems under these exposure conditions. The fireexposure is not r
44、epresentative of all fire conditions because conditions vary with changes in the amount, nature and distributionof fire loading, ventilation, compartment size and configuration, and heat sink characteristics of the compartment. Variation fromthe test conditions or test specimen construction, such as
45、 size, materials, method of assembly, also affects the fire-test-response.For these reasons, evaluation of the variation is required for application to construction in the field.6. Apparatus6.1 Combustion ChamberA tubular L-shaped assembly used with a gas-fired burner(s) capable of delivering the mi
46、nimuminterior temperatures and minimum calorific value (Btu input requirements) for the internal fire test as specified in Section 14.NOTE 3An example of such a device is an L-shaped square steel tube measuring 8461 in. by 9661 in. on the exterior legs with an orifice measuringa minimum 24 by 24 in.
47、 and insulated on the interior with a minimum 2 in. thick 8 lb/ft3 density ceramic fiber blanket as shown in Fig. 1.6.2 Gas-fired BurnerA device that produces heat and flame from a gas undergoing combustion that is capable of providingthe minimum calorific value (Btu input requirement) to perform th
48、e internal fire test.6.3 FurnaceAn enclosed furnace facility capable of controlling a fire to the time-temperature curve in Test Methods E119.A vertical furnace with a test frame is shown in Fig. 2 and a horizontal furnace is shown in Fig. 3.6.4 Furnace Thermocouples:E2336 1436.4.1 The E119 furnace
49、thermocouples shall:6.4.1.1 Be protected by sealed porcelain tubes having a nominal 34-in. (19-mm) outside diameter and 18-in. (3-mm) wallthickness, or, as an alternative, in the case of base metal thermocouples, protected by a standard 12-in. (13-mm) diameter wroughtsteel or wrought iron pipe of standard weight, and6.4.1.2 Have a time constant between the range of 5.0 to 7.2 min while encased in the tubes described in 6.4.1.1.6.4.2 Other types of E119 protection tubes or pyrometers shall be used only when they give the same indications under testcon
