ASTM E2226-2002 Standard Practice for Application of Hose Stream《软管流使用规程》.pdf

1、Designation: E 2226 02An American National StandardStandard Practice forApplication of Hose Stream1This standard is issued under the fixed designation E 2226; 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 (e) indicates an editorial change since the last revision or reapproval.INTRODUCTIONSeveral fire-test-response standards (such as ASTM E 119, E 814, E 2074, and E 1966) in order toassess the integrity of building

3、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 deliveri

4、ng 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 requiredto be subjected to the impact, erosion, and cooling effects of ahose stream as part of a fire-test-resp

5、onse 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 oth

6、er conditions, 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

7、 forcomparing performance of building elements after fire expo-sure and evaluates various materials and construction tech-niques under common conditions.1.4 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Thevalues stated in each system may no

8、t be exact equivalents;therefore, each system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the practice. Within the text, the SI units areshown in brackets.1.5 The text of this standard references notes which provideexplanatory mat

9、erial. These notes shall not be considered asrequirements of the standard.1.6 This standard is used to measure and describe theresponse of materials, products, or assemblies to heat and flameunder controlled conditions, but does not by itself incorporateall factors required for fire risk assessment

10、of the materials ,products, or assemblies under actual fire conditions.1.7 This standard 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 th

11、e applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:E 119 Test Methods for Fire Tests of Building Constructionand Materials2E 176 Terminology of Fire Standards2E 631 Terminology of Building Constructions3E 814 Test Method of Fire Tests of Through-Penetra

12、tionFire Stops2E 1966 Test Method for Fire-Resistive Joint Systems2E 2074 Methods of Fire Tests of Door Assemblies22.2 UL Standard:UL 385 Standard for Safety Play Pipes for Water SupplyTesting in Fire-Protection Service43. Terminology3.1 DefinitionsFor definitions of terms used in this prac-tice, re

13、fer to Terminologies E 176 and E 631.3.2 Definitions of Terms Specific to This Standard:3.2.1 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.1Th

14、is practice is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.11 on FireEndurance.Current edition approved Aug. 10, 2002. Published November 2002.2Annual Book of ASTM Standards, Vol 04.07.3Annual Book of ASTM Standards, Vol 04.11.4A

15、vailable from Underwriters Laboratories (UL), Corporate Progress, 333Pfingsten Rd., Northbrook, IL 60062.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.2 exposed area, nthe total surface area of the testassembly that is subjecte

16、d to the fire endurance test including,when required, the supporting construction.3.2.3 fully developed stream, na coherent, forceful pro-jection of water similar in shape and intensity to the streambeing applied to the exposed side of the test assembly from thenozzle.3.2.4 supporting construction,

17、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 construction.4. Significance and Use4.1 Thi

18、s 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 classification of building elements.4.2 This practice is intended to be used only after a testassembly has c

19、ompleted a prescribed standard fire endurancetest.4.3 The practice exposes a test assembly to a standard hosestream under controlled laboratory conditions.4.3.1 Water pressure and duration of exposure are notspecified in this practice. Duration of exposure, water pressure,and pass/fail criteria are

20、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 ofsubstantially changing the

21、 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 endurance test method.5.1.1 The water stream shall be delivered thro

22、ugh 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 385.5.1.2 The water pressure at the base of the nozzle shall bemeasure

23、d by providing a 12 in. (305 mm) length of a straightrun 2-12 in. (64 mm) pipe between the hose and the playpipe.Eight inches downstream from one end, the pipe shall have an18 in. (3.2 mm) diameter pressure tap drilled through the pipesidewall with a pipe coupling welded or brazed concentricallyover

24、 the hole. The pressure tap shall be flush with andperpendicular (6 5) to the inner wall of the pipe. Burrs orother irregularities shall be removed or corrected.5.1.3 A pressure gauge calibrated in 1 psi (5 kPa) incre-ments shall be fitted on the end of the coupling. The pressuregauge shall be capab

25、le of reading a maximum pressure of atFIG. 1 Hose Stream ApparatusE2226022least 59 psi (406 kPa) and shall have a full scale reading nogreater than 300 psi (2070 kPa).5.2 The hose stream apparatus shall be connected to asource of water capable of maintaining the required minimumpressure, as specifie

26、d in the fire endurance test method, at thenozzle under flow conditions throughout the hose stream test.6. Test Specimen and Conditioning6.1 Prior to conducting the hose stream test, the testspecimen shall be conditioned and fire tested as specified in theapplicable fire endurance test method.7. Noz

27、zle Location7.1 The nozzle tip shall be located so that its axis is 90 tothe center of the test assembly as shown in Fig. 2. However, ifthe axis is other than 90, refer to 7.2.1.7.2 The distance between the center of the test assembly andthe nozzle tip shall be 20 6 1 ft (6.1 6 0.3 m) as shown in Fi

28、g.2.7.2.1 The distance specified in 7.2 shall be decreased by 1 ft(305 mm) for each 10 deviation from the normal as shown inFig. 3. The maximum deviation from the normal shall notexceed 30.8. Procedure8.1 Prior to the fire test, the laboratory shall ensure that thedischarge pressure specified in the

29、 fire endurance test method iscapable of being attained.8.2 Condition and fire test the test specimen in accordancewith the requirements of the fire endurance test method.8.3 Unless otherwise specified, immediately, but not longerthan 10 min after the termination of the fire test, perform all ofthe

30、following prior to the application of the hose stream:8.3.1 Remove the test assembly and frame from the furnace,when applicable.8.3.2 Position the test assembly in such a manner as to beable to apply the hose stream to the entire surface of the testassembly that had been exposed to the fire.8.3.3 Po

31、sition the tip of the nozzle at the specified distancefrom the center of the test assembly.8.3.4 Adjust the nozzle hose stream to the specified pres-sure. During adjustment, the hose stream shall not contact thetest assembly.8.3.5 Videotape or photograph both the exposed and unex-posed sides of the

32、test assembly.8.3.6 Position personnel to obtain an unobstructed view ofboth the exposed and unexposed sides of the test assemblyduring the hose stream test.8.3.7 Commence the application of the hose stream asdescribed in 8.4.8.4 Commence the hose stream test by directing the hosestream to one corne

33、r of the test assembly first. Continue todirect the stream to the entire exposed face of the test assemblyin accordance with the following:8.4.1 Pass the hose stream across the test assembly at a rateof 3 to 6 feet per second (0.9 to 1.8 metres per second).Movement from one side of the test assembly

34、 to the otherconstitutes one pass.8.4.2 When changing directions to make the return pass,change direction slowly and off of the test assembly withoutFIG. 2 Nozzle Tip Position Relative to Exposure Face of Test SpecimenE2226023halting the directional movement of the application of the hosestream. Mov

35、ing the nozzle from side to side, apply the hosestream to cover the entire exposed face of the fire testassembly. After completing the side-to-side application of thehose stream, immediately change direction and apply the hosestream over the exposed face of the assembly by moving thenozzle at right

36、angles to the side-to-side application. Fig. 4 isone example of the pattern that shall be used.NOTE 1Ideally, the difference between the number of hose streampasses in the horizontal direction compared to the vertical direction doesnot exceed 10 % of the total.8.4.3 As defined in the fire-test-respo

37、nse standard, terminatethe application of the hose stream upon completion of therequired duration of exposure or when failure occurs, which-ever occurs first.FIG. 3 Nozzle Tip Position Correction for Deviation from 90FIG. 4 Typical Hose Stream PatternE22260248.4.4 After terminating the test, photogr

38、aph both the ex-posed and unexposed sides of the test assembly.9. Observations During the Hose Stream9.1 Observe the unexposed surface of the test assemblyduring the application of the hose stream for the developmentof any hole, crack, or other penetration that allows the passageof water from the ho

39、se stream.9.2 Observe any fully developed stream, wetting of theunexposed surface, water rolling down the unexposed surface,or water projected beyond the unexposed surface.10. Report10.1 Report test conditions and observations as part of thefire endurance test report and as specified in the fire end

40、urancetest method.10.1.1 Report observations from the unexposed side of thetest assembly including the development of any hole, crack, orother penetration that allows the passage of water from thehose stream.10.1.2 Report any fully developed stream, wetting of theunexposed surface, water rolling dow

41、n the unexposed surface,or water projected beyond the unexposed surface.10.1.3 Report observations of water projecting between thedevice or construction and the supporting construction or thetest frame.11. Keywords11.1 building element; composite assembly; curtain wall;door; fire barrier; fire endur

42、ance; fire-resistive joint system; firestop; floor; hose stream; impact force; masonry unit assembly;nozzle; thermal shock; wall; windowASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this stan

43、dard 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.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and

44、if 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, w

45、hich you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).E2226025