Chapter 6 Flashcards
Among the most important elements of life safety are proper means of ___ and protection against hazards.
Egress
In 1890, the first fire test of a fireproof floor assembly in the U.S. was conducted for the Denver Equitable Building Company. ___ floors were tested. The floors were subject to a load, shock, fire, and water, and continuous fire tests of ____.
Hollow tile floors…. 24 hours @ 1,300°F
In 1896, the NYC Department of Buildings conducted a series of tests on fireproof floors using brick kilns as the test furnace. The central panel of the floor was loaded to ____. A wood fire was maintained at ___ during the last four hours. After the fire, a hose stream was applied and the floor was reloaded to ___ for 48 hours, with the final load resting on the ____ rather than the beam.
150 psf
2,000°F
600 psf
arch
Between 1896 and 1916, not much fire testing wa done on columns. However, the testing that was conducted showed ___ to be superior to unprotected steel.
Cast iron
The three following standards for fire test of Building Construction and Materials.
1.
2.
3.
NFPA 251
UL 263
ASTM E-119
Fire resistance of columns is concerned with resisting ___.
Collapse
Fire resistance of floors is concerned with resistance ___.
Passage of fire and collapse
Fire resistance of walls is concerned with ___.
Passage of fire and collapse
Fire resistance of fire doors is concerned with ___.
Passage of fire
The minimum sizes for fire resistance test specimens are as follows. Columns \_\_\_ Beams and girders \_\_\_ Partitions and walls \_\_\_ Floor and roofs \_\_\_
9’
12’
100 sq. ft
180 sq. ft
Fire Resistance Testing… The columns have several thermocouples peened into the columns. When the average temperature exceeds ___ or any thermocouple’s temp exceeds ___, the test is ended and the specimen fails.
1,000°F
1,300°F
Fire Resistance Testing… A floor or wall structure must not develop conditions that would ignite ___ on the unexposed surface or permit an average temperature rise on the unexposed surface of ___.
Cotton waste
250°F
The UL Fire Resistance Directory is published ___.
Anually
The basis for regulation of flame spread today is found in NFPA ___, commonly referred to as the ___.
NFPA 255
Steiner Tunel Test
Steiner Tunel Test is also known as ASTM ___ and UL ___.
ASTM E-84
UL 723
Steiner tunnel test… A test sample ___ long and ___ wide forms the top of a tunnel or long box.
25’ long
2’ wide
Steiner tunnel test… Flame spread over inorganic reinforced cement board is set at ___.
0
Steiner tunnel test… Flame spread over red oak is set at ___.
100
Flame spread of surface materials is classified as follows:
Class A: ___
Class B: ___
Class C: ___
0-25
26-75
76-200
When the tunnel test is run at UL inc, smoke developed is also measured and indexed. Materials with smoke developed ratings of ___ or more can be expected to generate substantial amounts of smoke.
300 or more
The ___, Radiant Panel Flame Spread Test. Samples for this test measure only ___ by ___ inches.
ASTM E-162
6” by 18”
The corner test developed by FM Approvals uses walls up to ___ feet high, the East wall is ___ long, and the South wall is more than ___ long.
25’
50’
37’
The Critical Radiant Flux Test, NFPA ___, measures a materials ability to resist flame spread.
NFPA 253
The ___ the CRF number, the less flammable the carpeting.
Higher
