Procedures
for
measuring
the fire endurance of wall and
floor/ceiling assemblies, roof
structures, beams, and columns
are described in ASTM E119,
Standard Test Methods for Fire
Tests of Building Construction
and Materials.
All ASTM fire endurance test
standards, except ASTM E1725,
Standard Test Methods for Fire
Tests of Fire-Resistive Barrier
Systems for Electrical System
Components,29
prescribe
a
supplemental hose stream test
procedure to evaluate the ability
of the construction to resist
disintegration under adverse
conditions. The hose stream test is
either performed after termination
of the fire endurance test, or on a
duplicate specimen that has been
exposed to the standard fire for
half the duration of the desired
fire endurance classification.
(Fig 1.13)
(Fig 1.14)