1、Designation: E2226 15aE2226 15b 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 las
2、t revision. 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 build
3、ing elements 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 deli
4、vering a 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 required to be subjected to the impact, erosion, and cooling effects of a hosestream as part of a fire-test
5、-response standard. Building elements include, but are not limited to, wall and partition assemblies,fire-resistive joint systems, and doors.1.2 This practice shall register performance of the building element under specific hose stream conditions. It shall not imply that,either after exposure or un
6、der other conditions, the structural capability of the building element is intact or that the building elementis suitable for use.1.3 The result derived from this practice is one factor in assessing the integrity of building elements after fire exposure. Thepractice prescribes a standard hose stream
7、 exposure for comparing performance of building elements after fire exposure andevaluates various materials and construction techniques under common conditions.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI
8、units that are provided for information only and are not considered standard.1.5 The text of this standard references notes which provide explanatory material. These notes shall not be considered asrequirements of the standard.1.6 This fire standard cannot be used to provide quantitative measures.1.
9、7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Docum
10、ents2.1 ASTM Standards:2E119 Test Methods for Fire Tests of Building Construction and MaterialsE176 Terminology of Fire StandardsE631 Terminology of Building ConstructionsE814 Test Method for Fire Tests of Penetration Firestop SystemsE1966 Test Method for Fire-Resistive Joint Systems1 This practice
11、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 June 1, 2015Oct. 1, 2015. Published July 2015November 2015. Originally approved in 2002. Last previous edition approved in 2015 asE222
12、615.15a. DOI: 10.1520/E2226-15A.10.1520/E2226-15B.2 For referencedASTM standards, visit 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 docume
13、nt is not an ASTM standard and is intended only to provide the user of an ASTM standard 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 ap
14、propriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1E2074 Test Method for FireTests of DoorAssemblies, Includin
15、g Positive PressureTesting of Side-Hinged and Pivoted SwingingDoor Assemblies (Withdrawn 2007)32.2 UL Standard:UL 385 Standard for Safety Play Pipes for Water Supply Testing in Fire-Protection Service43. Terminology3.1 DefinitionsFor definitions of terms used in this practice, refer to Terminologies
16、 E176 and E631.3.2 Definitions of Terms Specific to This Standard:3.2.1 building element, na component or assembly of materials using products manufactured as independent units capable ofbeing joined with or placed within other components or assemblies to create a structure.3.2.2 exposed area, nthe
17、total surface area of the test assembly that is subjected to the fire-resistance test including, whenrequired, the supporting construction.3.2.3 fully developed stream, na coherent, forceful projection of water similar in shape and intensity to the stream beingapplied to the exposed side of the test
18、 assembly from the nozzle.3.2.4 supporting construction, nconstruction required for the testing of some building elements into which the test specimenis assembled, for example, the wall into which a door is fitted.3.2.5 test assembly, nthe building element or elements being tested and, if applicable
19、, the supporting construction.4. Significance and Use4.1 This practice is intended to standardize the apparatus used and the method or pattern of application of a standard hose streamto building elements as one part of the assessment and fire resistance of building elements.4.1.1 This practice speci
20、fies the water pressure and duration of application of the hose stream to the test assembly.4.2 This practice is intended to be used only after a test assembly has completed a prescribed standard fire-resistance test.4.3 The practice exposes a test assembly to a standard hose stream under controlled
21、 laboratory conditions.4.3.1 Pass/fail criteria are defined in the appropriate fire test method.4.3.2 This exposure is not intended to replicate typical fire fighting operations or all applied or impact loads a system could besubjected to in field use and conditions.4.4 Any variation from tested con
22、ditions has the potential of substantially changing the performance characteristics determinedby this practice.5. Apparatus5.1 The apparatus used to apply the hose stream is shown in Fig. 1 and shall be capable of delivering a solid stream of waterat the pressure specified in the fire-resistance tes
23、t method.5.1.1 The water stream shall be delivered through a 2-12 in. (64 mm) hose discharging through a National Standard Playpipeof corresponding size equipped with a 1-18 in. (29 mm) discharge tip of standard taper, smooth-bore pattern without a shoulderat the orifice. Refer to UL 385.5.1.1.1 The
24、 playpipe shall be attached at its base to a rigid support that permits the hose stream to be directed at the specimenfrom top to bottom and from side to side as required in 8.4 without changing the location of the base of the playpipe relative tothe test specimen.The rigid base is permitted to be a
25、 wheeled apparatus that is blocked to prevent movement during the hose streamapplication.NOTE 1Typical support and swivel devices are shown in Fig. 2.5.1.2 The water pressure at the base of the nozzle shall be measured by providing a 12 in. (305 mm) length of a straight run2-12 in. (64 mm) pipe betw
26、een the hose and the playpipe. Eight inches downstream from one end, the pipe shall have an 18 in.(3.2 mm) diameter pressure tap drilled through the pipe sidewall with a pipe coupling welded or brazed concentrically over thehole. The pressure tap shall be flush with and perpendicular (6 5) to the in
27、ner wall of the pipe. Burrs or other irregularities shallbe removed or corrected.5.1.3 Apressure gauge calibrated in 1 psi (5 kPa) increments shall be fitted on the end of the coupling. The pressure gauge shallbe capable of reading a maximum pressure of at least 59 psi (406 kPa) and shall have a ful
28、l scale reading no greater than 300 psi(2070 kPa).5.2 The hose stream apparatus shall be connected to a source of water capable of maintaining the required minimum pressure,as specified in the fire-resistance test method, at the nozzle under flow conditions throughout the hose stream test.3 The last
29、 approved version of this historical standard is referenced on www.astm.org.4 Available from Underwriters Laboratories (UL), Corporate Progress, 333 Pfingsten Rd., Northbrook, IL 60062.E2226 15b2FIG. 1 Hose Stream ApparatusFIG. 2 Typical Hose Mounting MethodsE2226 15b36. Test Specimen and Conditioni
30、ng6.1 Prior to conducting the hose stream test, the test specimen shall be conditioned and fire tested as specified in the applicablefire-resistance test method.7. Nozzle Location7.1 The nozzle tip shall be located so that its axis is 90 to the center of the test assembly as shown in Fig. 3. However
31、, if theaxis is other than 90, refer to 7.2.1.7.2 The distance between the center of the test assembly and the nozzle tip shall be 20 6 1 ft (6.1 6 0.3 m) as shown in Fig.3.7.2.1 The distance specified in 7.2 shall be decreased by 1 ft (305 mm) for each 10 deviation from the normal as shown in Fig.4
32、. The maximum deviation from the normal shall not exceed 30.8. Procedure8.1 Prior to the fire test, the laboratory shall ensure that the discharge pressure specified in the fire-resistance test method iscapable of being attained.8.2 Condition and fire test the test specimen in accordance with the re
33、quirements of the fire-resistance test method.8.3 Unless otherwise specified, immediately, but not longer than 10 min after the termination of the fire test, perform all of thefollowing prior to the application of the hose stream:8.3.1 Remove the test assembly and frame from the furnace, when applic
34、able.8.3.2 Position the test assembly in such a manner as to be able to apply the hose stream to the entire surface of the test assemblythat had been exposed to the fire.8.3.3 Position the tip of the nozzle at the specified distance from the center of the test assembly.8.3.4 Adjust the nozzle hose s
35、tream to the pressure specified in Table 1. During adjustment, the hose stream shall not contactthe test assembly.8.3.5 Videotape or photograph both the exposed and unexposed sides of the test assembly.8.3.6 Position personnel to obtain an unobstructed view of both the exposed and unexposed sides of
36、 the test assembly duringthe hose stream test.8.3.7 Commence the application of the hose stream as described in 8.4.FIG. 3 Nozzle Tip Position Relative to Exposure Face of Test SpecimenE2226 15b48.4 Commence the hose stream test by directing the hose stream to one corner of the test assembly first.
37、Continue to direct thestream to the entire exposed face of the test assembly in accordance with the following:8.4.1 Pass the hose stream across the test assembly at a rate of 3 to 6 feet per second (0.9 to 1.8 metres per second). Movementeither from one side of the test assembly to the other, from t
38、he bottom of the test assembly to top, or from the top of the testassembly to bottom, constitutes one pass.NOTE 2For example, Fig. 5 shows ten passes, five vertical and five horizontal.8.4.2 Maintain the rate of application when changing directions to make the return pass, and change direction off t
39、he testassembly without halting the directional movement of the application of the hose stream. Moving the nozzle from side to side,apply the hose stream to cover the entire exposed face of the fire test assembly. After completing the side-to-side application ofthe hose stream, immediately change di
40、rection and apply the hose stream over the exposed face of the assembly by moving thenozzle at right angles to the side-to-side application. Fig. 5 is one example of the pattern that shall be used.NOTE 3Ideally, the spacing between hose stream passes in the horizontal direction compared to the verti
41、cal direction does not differ by more than10 %.8.4.3 Terminate the application of the hose stream upon completion of the required duration specified in Table 1 or when failureoccurs, whichever occurs first.8.4.4 After terminating the test, photograph both the exposed and unexposed sides of the test
42、assembly.9. Observations During the Hose Stream9.1 Observe the unexposed surface of the test assembly during the application of the hose stream for the development of anyhole, crack, or other penetration that allows the passage of water from the hose stream.FIG. 4 Nozzle Tip Position Correction for
43、Deviation from 90TABLE 1 Water Pressure and Duration for Hose StreamResistance PeriodWater Pressure atBase of Nozzle, psi(kPa)Duration ofApplication,Application onExposed Area,min/100 ft2 (9 m2)exposed area8 h and over 45 (310) 64 h and over if less than 8 h 45 (310) 52 h and over if less than 4 h 3
44、0 (207) 212112 h and over if less than 2 h 30 (207) 1121 h and over if less than 112 h 30 (207) 1Less than 1 h, if desired 30 (207) 1E2226 15b59.2 Observe any fully developed stream, wetting of the unexposed surface, water rolling down the unexposed surface, or waterprojected beyond the unexposed su
45、rface.10. Report10.1 Report test conditions and observations as part of the fire resistance test report and as specified in the fire-resistance testmethod.10.1.1 Report observations from the unexposed side of the test assembly including the development of any hole, crack, or otherpenetration that al
46、lows the passage of water from the hose stream.10.1.2 Report any fully developed stream, wetting of the unexposed surface, water rolling down the unexposed surface, or waterprojected beyond the unexposed surface.10.1.3 Report observations of water projecting between the device or construction and th
47、e supporting construction or the testframe.11. Keywords11.1 building element; composite assembly; curtain wall; door; fire barrier; fire-resistive joint system; fire stop; floor; hosestream; impact force; masonry unit assembly; nozzle; thermal shock; wall; windowASTM International takes no position
48、respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.Th
49、is standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Com
