服務與資源 FAQs
   
 
[ 阻火延燒系統---防火性能測試 資料庫 Glossary ]
   
 
Assembly Rating: The rating, in hours, for a wall or floor assembly’s ability to prevent the passage of heat or hot gases and to limit a temperature rise to not more than 250°F (120°C) on average or 325°F (160°C) at any one point.
 
 
ASTM: American Society for Testing and Materials.
 
 
ASTM E 119: Tests the performance of walls, columns, floors, and other building components under fire exposure conditions.
 
 
ASTM E 814: The method applicable to “through penetration” firestops of various materials and construction. Firestops are tested, and intended for use, in openings in fire-resistive walls and floors.
 
 
ASTM E 84: “Standard Method for Surface Burning Characteristics of Building Materials”
 
 
CAN/ULC-S115: “Standard Method of Fire Tests of Firestop Systems”
 
 
F Rating: The time in hours that a firestop system will prevent the passage of flames through an opening, remain in place, and not permit the projection of a water stream through a fire rated assembly as determined by standard test methods ASTM E 814 or UL 1479.
 
 
Fire Resistance Rating: Sometimes called fire rating, fire resistance classification, or hourly rating. A term defined in building codes, usually based on fire endurance required. Fire resistance ratings are assigned by building codes for various types of construction and occupancies, and are usually given in half-hour increments.
 
 
L Rating: An optional measurement of the rate of air leakage through a test sample, resulting from a specified air pressure difference applied across the surface of the test sample.
 
 
T Rating: The time in hours required for the temperature on the unexposed surface of a fire rated assembly. A firestop system or any penetrating item to rise 325° F above the surrounding temperature as determined by standard test methods ASTM E 814 or UL 1479 (in addition to meeting F-Rating requirements).
 
 
UL (Underwriters Laboratories Inc.): An independent testing laboratory that also provides full product listing and follow-up services.
 
 
UL 263: Standard Fire Test of Building Construction and Materials (UL equivalent to ASTM E 119).
 
 
UL 1479: “Fire Tests of Through-Penetration Firestops” (equivalent to ASTM E 814).
 
 
UL2079: “Tests for Fire Resistance of Building Joint Systems”
   
(以上防火資料,均參考美國STI公司技術資料)
 
   
 
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