ASTM E2307-23 pdf free download – Standard Test Method For Determining Fire Resistance Of Perimeter Fire Barriers Using Intermediate-Scale, Multi-Story Test Apparatus.
A perimeter fire barrier is the perimeter joint protection that provides fire resistance to prevent passage of fire from floor to floor within the building at the opening between the exterior wall assembly and the floor assembly. A perimeter fire barrier is a unique building construction detail not addressed by other fire test methods.
Among its other functions, a perimeter fire barrier impedes the vertical spread of fire from the floor of origin to the floor(s) above, at the building’s exterior perimeter and accommodates various movements such as those induced by thermal differentials, seismicity, and wind loads.
This test method describes criteria and test methods used to determine the fire resistance of perimeter fire barriers when subjected to standard fire exposure conditions using the intermediate-scale, multistory test apparatus (ISMA). The use of the multi-story test apparatus and this test method are intended to simulate a possible fire exposure on a perimeter fire barrier.
This test method evaluates the performance of a perimeter fire barrier in maintaining a seal to prevent fire spread during deflection and deformation of an exterior wall assembly and floor assembly. It also assesses the barrier’s ability to resist fire exposure from both an interior compartment fire and flame plume emitted from a window burner below. The test is conducted by exposing the perimeter fire barrier to time-temperature fire conditions for a specified period, with the end point being when the first compliance condition is reached.
The heating conditions used in this test method are those specified for the first 30 minutes of exposure, followed by conformance to Test Methods E119 time-temperature curve for the remainder of the test in the test room. The method of testing and evaluation criteria for the ability of the perimeter fire barrier to maintain fire resistance while juxtaposing a floor and exterior wall assembly to a perimeter joint are also specified.
