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Auto flammability

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relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
The study was conducted according to the guideline in effect at the time of study conduct.
GLP compliance:
Relative self-ignition temperature:
> 400 °C
Remarks on result:
at atm. press. of 1.0 atm
Self-ignition did not occur when the oven temperature was increased to a maximum of 400ºC.
Executive summary:

The autoflammability of the test substance was determined in accordance with EEC Directive 67/548, Annex V, A16, as published in 84/449/EEC. A wire mesh cube was filled with the test substance and suspended from a tripod in the muffle furnace. A thermocouple was placed so as to be in the centre of the sample. Another thermocouple was placed into a similar wire mesh cube filled with sand which was also suspended from a tripod and used to measure the temperature of the furnace. The furnace door was fully closed and the temperature ramp motor switched on. The temperature controller was set to raise the oven temperature at a rate of 0.5ºC/minute to a maximum of 400ºC. A steady rise in temperature of both test substance and oven was observed during the test. A very small amount of black solid remained in the cube after the test was completed. There was no sign of any test substance on the furnace floor.

Description of key information

EU Method A.16

Key value for chemical safety assessment

Additional information

Not autoflammable (> 400ºC)