The water pressure at the base of the nozzle is currently shown as 30 psi for a 3 h test. Standards such as UL 10B and UL 10C set the pressure at 45 psi for 3 h exposure. The purpose of this revision is to correct this inconsistency by specifying 45 psi water pressure for tests of Fire Doors. It is proposed to insert footnote in Table 1 to specify the water pressure to be 45 psi (310 kPa) for tests of fire doors of 3 h and over if less than 4 h.
Keywordsbuilding element; composite assembly; curtain wall; door; fire barrier; fire-resistive joint system; fire stop; floor; hose stream; impact force; masonry unit assembly; nozzle; thermal shock; wall; window; Building materials/applications; Composites; Curtain walls; Fire barrier; Fire endurance rating; Fire-resistant materials/testing; Fire testing--building materials; Hose stream test; Masonry units; Nozzles; Thermal shock materials/testing; Walls; Windows/window assemblies;
Draft Under Development