1、Designation:E226804(Reapproved 2011)Standard Test Method forWater Penetration of Exterior Windows,Skylights,andDoors by Rapid Pulsed Air Pressure Difference1This standard is issued under the fixed designation E2268;the number immediately following the designation indicates the year oforiginal adopti
2、on or,in 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.1.Scope1.1 This test method covers the determination of the resis-tance of exterior windows,
3、skylights,and doors to waterpenetration when water is applied to the outdoor face andexposed edges simultaneously with a rapid pulsed air pressureat the outdoor face higher than the pressure at the indoor face.1.2 This test method is applicable to windows,skylights,ordoors alone.Those interested in
4、testing curtain walls to rapidpulsed air pressure differences should use AAMA 501.1-94.1.3 This test method addresses water penetration through amanufactured assembly.Water that penetrates the assembly,but does not result in a failure as defined herein,may haveadverse effects on the performance of c
5、ontained materials suchas sealants and insulating or laminated glass.This test methoddoes not address these issues.1.4 The proper use of this test method requires a knowledgeof the principles of pressure measurement.1.5 The values stated in SI units are to be regarded asstandard.The values given in
6、parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.6 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
7、 appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E631 Terminology of Building Constructions2.2 AAMA Standard:3AAMA 501.1-94 Standard Test Method for ExteriorWindows,Curtain Walls and Doors for
8、Water PenetrationUsing Dynamic Pressure3.Terminology3.1 DefinitionsFor definitions of general terms relating tobuilding construction used in this test method,see TerminologyE631.3.2 Definitions of Terms Specific to This Standard:3.2.1 pulsed,vsubjected to a transition from one level ofdifferential a
9、ir pressure to another and back within a prescribedtime period.3.2.2 pulse generator,ntest apparatus capable of produc-ing rapid changes of air pressure between two prescribed levelswithin a specified time period(see Fig.3).3.2.3 specimen,nthe entire assembled unit submitted fortest as described in
10、Section 8.3.2.4 test pressure difference,nthe specified difference indynamic air pressure across the closed and locked or fixedspecimen expressed as Pascals(lbf/ft2).3.2.5 water penetration,npenetration of water beyond aplane parallel to the glazing intersecting the innermost projec-tion of the test
11、 specimen,not including interior trim andhardware,under the specified conditions of air pressure differ-ence across the specimen.For products with non-planar glaz-ing surfaces(domes,vaults,pyramids,and so forth)the planedefining water penetration is the plane defined by the innermostedges of the uni
12、t frame.4.Summary of Test Method4.1 This test method consists of sealing the test specimeninto or against one face of a test chamber and supplying air toor exhausting air from the chamber at a rapid cyclic rate acrossthe specimen for the time specified,while spraying water ontothe outdoor face of th
13、e specimen at the required rate andobserving any water penetration.1This test method is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.51on Performance of Windows,Doors,Skylights and Curtain Walls.Current edition approved
14、Nov.1,2011.Published December 2011.Originallyapproved in 2004.Last previous edition approved in 2004 as E2268 04.DOI:10.1520/E2268-04R11.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume infor
15、mation,refer to the standards Document Summary page onthe ASTM website.3Available from American Architectural Manufacturers Association(AAMA),1827 Walden Office Square,Suite 550 Schaumburg,IL 60173,http:/www.aamanet.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken
16、,PA 19428-2959.United States1 5.Significance and Use5.1 This test method is a standard procedure for determiningthe resistance to water penetration during rapid cyclic pulses ofdynamic air pressure differences.The air-pressure differencesacting across a building envelope vary greatly.These factorsshould be fully considered prior to specifying the test pressuredifference to be used.5.2 The median test pressure used in this test method isdefined as the specified test pressure supplied by the user
