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MoreFire Propagation Apparatus
FM 4910, ASTM E 2058, ISO 12136
FTT manufactures the FM Global Fire Propagation Apparatus (FPA), a heat release calorimeter (commonly known as the Tewarson Apparatus) and have working closely with FM Global to develop the apparatus. This is the instrument developed in the 1980's and now used extensively by FM Global for a variety of insurance industry norms including clean room and cable applications. The method has been standardised by ASTM as ASTM E 2058 and ISO as ISO 12136.
The FTT FPA can be used to determine:
- Critical heat flux
- Thermal Response Parameter (TRP)
- Effective heat of combustion
- Chemical and convective heat release rates
- Fire Propagation Index (FPI)
It can also be instrumented to measure:
- Average Corrosion Index
- Smoke yield
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