This standard specifies the classification and testing methods for the watertight performance of building exterior windows. This standard applies to the watertight performance classification and testing methods of building exterior windows (including floor-to-ceiling windows). The detection object is limited to the window specimen itself, and does not involve the joint between the window and the envelope. 2 Referenced standards The clauses contained in the following standards constitute the clauses of this standard by citing them in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest editions of the standards listed below. GB/T 5823-1986 Terminology for building doors and windows GB 50178-1993 Building climate zoning standards
GB/T 7108-2002 history
2019GB/T 7106-2019 Test methods of air permeability,watertightness,wind load resistance performance for building external windows and doors
2008GB/T 7106-2008 Graduations and test methods of air permeability,watertightness,wind load resistance performance for building external windows and doors
2002GB/T 7108-2002 Graduation and test method for watertightness performance of windows
GB/T 7108-2002 Graduation and test method for watertightness performance of windows was changed to GB/T 7106-2008 Graduations and test methods of air permeability,watertightness,wind load resistance performance for building external windows and doors.