ISO 8274:2005 pdf download.Windows and doors- Resistance to repeated opening and closing -Tes tmethod.
4.1 General
The test specimen has its fasteners released, its casement, sash or leaf is opened to the required resting position. is brought to the closed position and its fasteners secured again before a final rest. This cycle is repeated for the specified number of times or until failure occurs. The duration of each cycle depends upon the stroke (itself depending upon the mode of operation of the specimen), upon the reference velocity, and upon the operations carried out during a cycle (see figures 1 and 2).
NOTE lithe test specimen can be operated in more than one mode. e.g. tilt and turn, each may be tested completely and separately on the same specimen, the more frequent mode being addressed first, or the two modes may be tcstcd ahernately in a continuous cycle.
4.1.1 Stroke
Side hung casements and leaves are operated from the closed position to an open position of 90 ± 100. or to the stopping position of the resinctor or closing device if this occurs at less than 90. For other modes of operation. casements, sashes or leaves are operaled from the closed position to the full opened position unless specified otherwise. However the stopping position shall not be less than 60% of the fully open position.
Unless otherwise specified. dynamic forces shall be applied at both ends of the stroke.
4.1.2 Reference velocity
If thc casement, sash or leaf is manually operated. the reference velocity shall be (0.5 ± O.05)m!s if the moving part has a mass not exceeding 400 kg. and (0.2 ± 0.02)mfs if the moving part has a mass exceeding 4(X) kg. unless, for special purposes, the velocity is defined by the relevant standard.
If the casement, sash or leaf is mechanically operated during either a part or the whole of the cycle, and if the velocity is adjustable. the reference velocity shall he set as defined above. If not adjustable. the reference velocity shall he the actual velocity allowed by the system.
The test specimen has its fasteners released, its casement, sash or leaf is opened to the required resting position. is brought to the closed position and its fasteners secured again before a final rest. This cycle is repeated for the specified number of times or until failure occurs. The duration of each cycle depends upon the stroke (itself depending upon the mode of operation of the specimen), upon the reference velocity, and upon the operations carried out during a cycle (see figures 1 and 2).
NOTE lithe test specimen can be operated in more than one mode. e.g. tilt and turn, each may be tested completely and separately on the same specimen, the more frequent mode being addressed first, or the two modes may be tcstcd ahernately in a continuous cycle.
4.1.1 Stroke
Side hung casements and leaves are operated from the closed position to an open position of 90 ± 100. or to the stopping position of the resinctor or closing device if this occurs at less than 90. For other modes of operation. casements, sashes or leaves are operaled from the closed position to the full opened position unless specified otherwise. However the stopping position shall not be less than 60% of the fully open position.
Unless otherwise specified. dynamic forces shall be applied at both ends of the stroke.
4.1.2 Reference velocity
If thc casement, sash or leaf is manually operated. the reference velocity shall be (0.5 ± O.05)m!s if the moving part has a mass not exceeding 400 kg. and (0.2 ± 0.02)mfs if the moving part has a mass exceeding 4(X) kg. unless, for special purposes, the velocity is defined by the relevant standard.
If the casement, sash or leaf is mechanically operated during either a part or the whole of the cycle, and if the velocity is adjustable. the reference velocity shall he set as defined above. If not adjustable. the reference velocity shall he the actual velocity allowed by the system.
