UL 263 Fire Tests of Building Construction and Material
UL 263 Fire Tests of Building Construction and Material
UL 263 Fire Test to Building Material – Standard
UL 263 Fire Tests of Building Construction and Material
UL 263 Fire Test to Building Material – Standard Scope
- These fire tests are applicable to assemblies of masonry units and to composite assemblies of structural materials for building, including bearing and other walls and partitions, columns, girders, beams, slabs and composite slab and beam assemblies for floors and roofs, they are also applicable to other assemblies and structural units that constitute permanent integral parts of a finished building.
- The classifications for building construction and materials are intended to register performance during the period of fire exposure and are not intended to be interpreted as having determined their acceptability for use after fire exposure.
- These requirements are intended to evaluate the length of time that the types of assemblies specified in1.1 will contain a fire or retain their structural integrity, or both, dependent upon the type of assembly involved, during a predetermined test exposure. the test evaluates the assembly's resistance to teat. and in some instances to a hose stream. while carrying an applied load, if the assembly is load bearing.
- Under these requirements a specimen is subjected to a standard fire exposure controlled to achieve specified temperatures throughout a specified time period. In some instances ,the fire exposure may be followed by the application of a specified standard fire hose stream. This exposure by itself may not be representative of all fire conditions; conditions may vary with changes in the amount, nature, and distribution of fire loading, ventilation, compartment size and configuration, and heat sink characteristics of the compartment. These requirements provide a relative measure of fire performance of comparable assemblies under these specified fire exposure conditions. Any variation from the construction or conditions that are tested such as size. method of assembly, and materials ,may substantially change the performance characteristics of the assembly.
UL 263 Fire Test to Building Material –Standard General
Results shall be reported be reported in accordance with the performance in the tests
prescribed in these test method. the report shall show the performance under the specified
exposure period chosen from the following:20minute, 30minute,3/4 hour, 1hour, 1-1/2hour,
3hour or 4hour. the report shall include the temperature measurements of the furnace and,
when determined, of the unexposed side if the test assembly, it shall also contain a record
of all observations having a bearing on the performance of the test assembly.
UL 263 Fire Test to Building Material – Standard time-temperature curve shown
The fire exposure of door assemblies shall be controlled to conform to the applicable portion of the standard time-temperature curve shown. the points on the curve that determine its character are：
1000°F (538°C) at 5 min
1462°F (795°C)at 20 min
1550°F (843°C) at 30 min
1700°F (927°C) at 1 h
1850°F (1010°C) at 2 h
2000°F (1093°C) at 4 h
and the other time
UL 263 Fire Test to Building Material – Relative Standard
- BS 476-20：Fire Tests on Building Materials and Structures Part 20: Method for Determination of the Fire Resistance of Elements of Construction (General Principles)
- BS 476-21：Fire Tests on Building Materials and Structures Part 21: Methods for Determination of the Fire Resistance of Load bearing Elements of Construction
- BS 476-22：Fire Tests on Building Materials and Structures Part 22: Methods for determination of the Fire Resistance of Non- Load bearing Elements of construction
- ASTM E 119：Standard Test Methods for Fire Tests of Building Construction and Materials
- ISO 834：Fire-resistance tests - Elements of building construction
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