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Significance and Use
5.1 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 fire exposure,
5.1.2 Retain its integrity, or
5.1.3 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 to resist flaming (combustion) when exposed to 1382°F (750°C).
5.2.2 Loadbearing ability of the tested support system and fastening system to carry the load of the grease duct enclosure system during a standardized fire-engulfment test.
5.2.3 Ability of a fire stop to meet the requirements of Test Method 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 and a standardized internal fire test.
5.2.5 Transmission of heat through the grease duct and the enclosure material(s) during a standardized fire resistance test and a 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 standardized cyclic thermal 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 with components, densities, or dimensions other than those tested.
5.3.2 Evaluation of the degree by which the enclosure material or grease duct enclosure system contributes to the fire hazard by 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 grease duct enclosure system.
5.3.4 Measurement of flame spread over the surface of the grease duct enclosure system.
Note 2: The information in is usually determined by other suitable test methods. For example, is typically determined using Test Method .
5.4 In these test methods, the test specimens are subjected to one or more specific tests under laboratory conditions. When different test conditions are substituted or the end-use conditions are changed, it is not always possible by, or from, these test methods to predict changes to the characteristics measured. Therefore, the results of these laboratory tests are valid only for the exposure 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 to achieve specified temperatures throughout a specified time period. The fire-engulfment and vertical fire resistance tests are followed by the application of a standardized hose stream test. These test methods provide a relative measure of the fire-test-response of comparable enclosure materials and grease duct enclosure systems under these exposure conditions. The fire exposure is not representative of all fire conditions because conditions vary with changes in the amount, nature and distribution of fire loading, ventilation, compartment size and configuration, and heat sink characteristics of the compartment. Variation from the test conditions or test specimen construction, such as 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.
Note 1: The majority of this standard is based on the Model Building Code Evaluation Service Acceptance Criteria titled ACCEPTANCE CRITERIA FOR GREASE DUCT ENCLOSURE ASSEMBLIES, AC101, which was created in 1994. Numerous design listings and labeled materials exist based on the provisions of this standard.
1.1 These test 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 comparing the test results of the enclosure materials and grease duct enclosure systems. The results of these tests are one factor in assessing predicted fire performance of grease duct enclosure systems. Using these test results to predict the performance of actual grease duct enclosure systems requires the evaluation of test conditions.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 The text of these test methods references 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 assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual fire conditions.
1.6 These test methods do not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of these test methods to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
C569 Test Method for Indentation Hardness of Preformed Thermal Insulations
E84 Test Method for Surface Burning Characteristics of Building Materials
E119 Test Methods for Fire Tests of Building Construction and Materials
E136 Test Method for Behavior of Materials in a Vertical Tube Furnace at 750C
E176 Terminology of Fire Standards
E631 Terminology of Building Constructions
E814 Test Method for Fire Tests of Penetration Firestop Systems
ICS Number Code 13.220.40 (Ignitability and burning behaviour of materials and products); 21.260 (Lubrication systems)
UNSPSC Code 15121902(Grease)
ASTM E2336-16, Standard Test Methods for Fire Resistive Grease Duct Enclosure Systems, ASTM International, West Conshohocken, PA, 2016, www.astm.orgBack to Top