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1.1 This document determines resistance of security glazing products to natural threats characterized by simulated destructive-windstorm events.

1.2 The test method determines the performance of security-glazing for use in fenestration assemblies under conditions representative of events that occur in severe, destructive-windstorm environments using simulated missile impact(s) followed by the application of cyclic static-pressure differentials.

1.3 A missile-propulsion device, an air pressure system and a test chamber are used to model some conditions that can be representative of windborne debris and pressures in a windstorm environment.

1.4 The performance determined by this test method relates to the ability of glazing in the building envelope to remain without openings during a windstorm.