Requirments as per IS 710 : 2010
Dimension and Tolerance
Less than 6 mm
6 mm and above
Edge Straightness, %
1 mm on length of 500 mm
Not more than 0.8 mm between any two points
+2mm, -0 mm
General Flatness Test
The twist, cupping and warping shall not exceed 6mm
Local Planeness Test
The depth of deviation measured at any two point shall not be more than 0.5 mm
Impact Indentation Test
Shall have no defects such as cracking, tearing or delamination
The depth of indentation shall not be more than 0.2 mm
No cracking, tearing or delamination observed 0.05 mm
The deflection at the maximum load shall not be more than one thirtieth of the length and one fifteenth of the width whichever is less.
The residual deflection shall not be more than one tenth of the maximum deflection.
1/45 th of length
One twentieth of the maximum deflection
Edge loading Test
The deflection of the edge at the maximum load shall not be more than 5 mm.
The residual deflection shall not be more than 0.5 mm.
Lateral buckling shall not be more than 2 mm
No residual buckling after removal of load.
No residual buckling after removal of load
Shock Resistance Test
Shall be no visible damage in any part of the door after twenty five blows on each end
No significant permanent deformation and without deterioration after five impact on both sides of the shutter.
No visible damage observed.
No significant permanent deformation or deterioration observed.
a) The initial deflection shall not be more than 50 mm
b) The residual deflection shall not be more than 5 mm
a) 18 mm
b) 1.95 mm
Shall not have any visible damage in any part of the door after 50 successive impacts.
No visible damage observed
Shall not be any permanent of the fixing or any part of the door set in hindering its normal working after the test
No permanent deformation in any part of the door observed
Varying Humidity Test
There shall not be any visible warping, twisting or delamination
The maximum departure from the general planeness shall not be more than 1.0 mm.
The recovery of the original size after subjecting the door to high and low humidity shall be at least 90 percent of the change in dimension
No visible warping, twisting or delamination observed
End immersion Test
Shall have no delamination at the end of the test
No delamination observed
Minimum pass Standard
Glue Adhesion Test
Shall be considered to have pass the test if no delamination has occurred in the glue lines.
No single delamination of more than 50 mm in length and 3 mm in depth in the glue lines between plywood faces and stiles and rails
No delamination observed
Screw withdrawal Test
The required load to withdraw the screw completely shall not be less than 1000 N
On withdrawal, there shall be no visible damage to the surface either by delamination or extra chipping off at the points of withdrawal.
No visible damage or chipping off observed.