What is the purpose of this test?

To determine the structural performance and deflection of a door or window assembly under a specified static wind pressure (Clause 4).

Does this standard specify the passing criteria for wind pressure?

No, it is a 'method of test'. The passing criteria (maximum allowable deflection or damage) are typically specified by the specifier or relevant building regulations, based on the performance required.

How are positive and negative pressures tested?

The test is conducted by first applying positive pressure (pushing inwards), releasing it, and then applying negative pressure (pulling outwards) on the assembly (Clause 7.2).

Is air leakage measured in this test?

No. This test is for wind resistance only. Air leakage testing is covered in IS 13362 (Part 2).

IS 13362 Part 4

: 1992

Methods of Test for Doors and Window Assemblies - Part 4: Wind Resistance

CurrentSpecializedTesting MethodBIMStructural Engineering · Doors, Windows and Shutters

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This standard specifies the laboratory test method for determining the structural performance of door and window assemblies when subjected to static wind pressure. It details the required apparatus, test specimen mounting, procedure for applying incremental positive and negative pressures, and the parameters to be recorded in the test report.

Specifies a method for determining the wind resistance of doors and window assemblies.

Quick Reference Values

Test pressure applicationApplied in increments not exceeding 20% of the maximum test pressure

Pressure holding time per incrementat least 10 seconds

Pressure measuring device accuracywithin ±2% of the maximum reading

Pressure application directionBoth positive (inward) and negative (outward) pressures are applied

Practical Notes

The maximum test pressure for a project is derived from the design wind pressure calculated as per IS 875 (Part 3), considering building location, height, and topography.

This part (Part 4) only covers resistance to static pressure. Other performance aspects like air leakage and water penetration are covered in other parts of the IS 13362 series.

Careful sealing of the test specimen in the chamber is critical to avoid leakage and ensure accurate pressure application on the assembly's face.