This test method specifies methods for determining the fire resistance of open-state cavity barriers and is to be used in conjunction with EN 1363-1.
This document is applicable to non-loadbearing vertically or horizontally oriented open-state cavity barriers, which are designed to close and provide fire separation in the event of fire.
Open-state cavity barriers in facades, where the fire exposure comes as a result of a breaking window and allowing a developed fire to come into contact with the façade, can be tested to the optional " flame" criteria.
This document is not applicable to cavity barriers containing penetration seals, which are covered by EN 1366-3.
This document is not applicable to closed cavity barriers, which are covered by EN 1366-4.