Does the ASTM E814/ UL 1479 standard require a hose stream test after fire exposure?

The ASTM E814 / UL 1479 standard specifically pertains to testing the fire resistance of through-penetration firestop systems. This standard indeed requires a hose stream test following the fire exposure test. The purpose of this test is to evaluate the integrity of the firestop system after it has been subjected to high temperatures, simulating conditions that may occur in an actual fire event.

The hose stream test assesses the performance of the firestop system after it has been exposed to fire, ensuring that it can withstand the impact of water from firefighting efforts without losing its ability to contain fire and smoke spread. This is a crucial aspect because, in real-life situations, firestop systems need to maintain their integrity not just during a fire but also through the subsequent efforts to extinguish that fire.

In contrast, other options suggest various levels of requirement regarding the hose stream test, but the standard is clear in its mandate for this additional evaluation to ensure that the firestop systems remain effective under realistic conditions.