Self-ignition test

T. Kotoyori and M. Maruta, An Adiabatic Self-Ignition Testing Apparatus, Thermochimica Acta, 67, 35-44 (1983). 

Self-ignition test since self-ignition (especially in powdered activated carbon) is a potential hazard on transportation in elevated ambient temperatures, this test is used to determine whether a carbon sample ignites at 140 °C under specified conditions. 

Tests were carried out with apparatus volumes that varied between 8 and 12000 cm3, ait decreased and the self-ignition waiting time increased when the volume increased. The following AIT extreme values and waiting time (t) for the three compounds below were ... 

The feed composition chosen was 6 mol% n-hexane, 6 mol% ammonia, 12 mol% oxygen and remainder helium, with an overall gas residence time of 2.5 s. Due to the low temperature of n-hexane self-ignition (T 234°C), a relevant contribution of homogeneous, radical reactions was expected. Tests made in the absence of catalyst... 

Both self-heating and self-ignition characteristics are commonly determined by adiabatic tests (self-heating) and hot-plate tests (self-ignition). These tests are limited in their applicability because they do not fully simulate the plant conditions. 

Special tests were made to determine the self-igniting characteristics of the fuel gas-ozone mixtures. 

HDPE-based WPG materials all have rather similar ignition points. When tested at the same conditions, they showed almost the same self-ignition temperatures (SIT) ... 

The ASTM fire test procedure describes a laboratory determination of the flash ignition temperature (FIT) and spontaneous ignition temperature, or self-ignition temperature (SIT) of plastics and composites using a hot-air furnace. FIT is the minimum temperature at which sufficient flammable gases are emitted to ignite by a... 

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