ASTM E2226-2015a Standard Practice for Application of Hose Stream《软管流应用的标准实施规程》.pdf
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1、Designation: E2226 15a An American National StandardStandard Practice forApplication of Hose Stream1This standard is issued under the fixed designation E2226; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.INTRODUCTIONSeveral fire-test-response standards (such as ASTM E119, E814, E2074, and E1966) in order toassess the integrity of building eleme
3、nts after exposure to a specified test fire, require test specimensto be evaluated by exposure to a hose stream. It is important to standardize certain elements of the hosestream to promote uniformity in requirements. To attain this goal, this practice describes a standardapparatus for delivering a
4、solid stream of water and prescribes a standard method of subjectingbuilding elements to a hose stream after fire exposure.1. Scope1.1 This practice is applicable to building elements requiredto be subjected to the impact, erosion, and cooling effects of ahose stream as part of a fire-test-response
5、standard. Buildingelements include, but are not limited to, wall and partitionassemblies, fire-resistive joint systems, and doors.1.2 This practice shall register performance of the buildingelement under specific hose stream conditions. It shall notimply that, either after exposure or under other co
6、nditions, thestructural capability of the building element is intact or that thebuilding element is suitable for use.1.3 The result derived from this practice is one factor inassessing the integrity of building elements after fire exposure.The practice prescribes a standard hose stream exposure forc
7、omparing performance of building elements after fire expo-sure and evaluates various materials and construction tech-niques under common conditions.1.4 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that ar
8、e provided for information onlyand are not considered standard.1.5 The text of this standard references notes which provideexplanatory material. These notes shall not be considered asrequirements of the standard.1.6 This fire standard cannot be used to provide quantitativemeasures.1.7 This standard
9、does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM S
10、tandards:2E119 Test Methods for Fire Tests of Building Constructionand MaterialsE176 Terminology of Fire StandardsE631 Terminology of Building ConstructionsE814 Test Method for Fire Tests of Penetration FirestopSystemsE1966 Test Method for Fire-Resistive Joint SystemsE2074 Test Method for Fire Tests
11、 of Door Assemblies,Including Positive Pressure Testing of Side-Hinged andPivoted Swinging Door Assemblies (Withdrawn 2007)32.2 UL Standard:UL 385 Standard for Safety Play Pipes for Water SupplyTesting in Fire-Protection Service43. Terminology3.1 DefinitionsFor definitions of terms used in thispract
12、ice, refer to Terminologies E176 and E631.3.2 Definitions of Terms Specific to This Standard:1This practice is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.11 on FireResistance.Current edition approved June 1, 2015. Published July
13、 2015. Originally approvedin 2002. Last previous edition approved in 2015 as E222615. DOI: 10.1520/E2226-15A.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the sta
14、ndards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from Underwriters Laboratories (UL), Corporate Progress, 333Pfingsten Rd., Northbrook, IL 60062.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C
15、700, West Conshohocken, PA 19428-2959. United States13.2.1 building element, na component or assembly ofmaterials using products manufactured as independent unitscapable of being joined with or placed within other compo-nents or assemblies to create a structure.3.2.2 exposed area, nthe total surface
16、 area of the testassembly that is subjected to the fire-resistance test including,when required, the supporting construction.3.2.3 fully developed stream, na coherent, forceful projec-tion of water similar in shape and intensity to the stream beingapplied to the exposed side of the test assembly fro
17、m thenozzle.3.2.4 supporting construction, nconstruction required forthe testing of some building elements into which the testspecimen is assembled, for example, the wall into which a dooris fitted.3.2.5 test assembly, nthe building element or elementsbeing tested and, if applicable, the supporting
18、construction.4. Significance and Use4.1 This practice is intended to standardize the apparatusused and the method or pattern of application of a standardhose stream to building elements as one part of the assessmentand fire resistance of building elements.4.1.1 This practice specifies the water pres
19、sure and durationof application of the hose stream to the test assembly.4.2 This practice is intended to be used only after a testassembly has completed a prescribed standard fire-resistancetest.4.3 The practice exposes a test assembly to a standard hosestream under controlled laboratory conditions.
20、4.3.1 Pass/fail criteria are defined in the appropriate fire testmethod.4.3.2 This exposure is not intended to replicate typical firefighting operations or all applied or impact loads a systemcould be subjected to in field use and conditions.4.4 Any variation from tested conditions has the potential
21、 ofsubstantially changing the performance characteristics deter-mined by this practice.5. Apparatus5.1 The apparatus used to apply the hose stream is shown inFig. 1 and shall be capable of delivering a solid stream of waterat the pressure specified in the fire-resistance test method.5.1.1 The water
22、stream shall be delivered through a 2-12 in.(64 mm) hose discharging through a National Standard Play-pipe of corresponding size equipped with a 1-18 in. (29 mm)discharge tip of standard taper, smooth-bore pattern without ashoulder at the orifice. Refer to UL 385.5.1.1.1 The playpipe shall be attach
23、ed at its base to a rigidsupport that permits the hose stream to be directed at thespecimen from top to bottom and from side to side as requiredin 8.4 without changing the location of the base of the playpiperelative to the test specimen. The rigid base is permitted to bea wheeled apparatus that is
24、blocked to prevent movementduring the hose stream application.NOTE 1Typical support and swivel devices are shown in Fig. 2.FIG. 1 Hose Stream ApparatusE2226 15a25.1.2 The water pressure at the base of the nozzle shall bemeasured by providing a 12 in. (305 mm) length of a straightrun 2-12 in. (64 mm)
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