This standard defines an additional test method which may be used when assessing the watertightness of curtain walling,both its fixed and openable parts.It is a supplimentary test,not required for classification purposes,and it should be used only when the project specifier has determined its necessity.
It describes how the outside face of a curtain walling specimen should be subjected to a continuous spray of water and a trubulent airflow,with continuous pulses of positive air pressure generated from within the chamber.
This standard applies to any curtain walling product as defined in prEN 13830:2000