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Physical & Chemical properties

Auto flammability

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auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18-24 August 2010
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
The study was conducted according to an internationally recognised method, and under GLP. No deviation affected the quality of the study. The substance is adequately identified, but details on composition are missing. Therefore validation applies with restrictions.
according to guideline
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
Regulation (EC) No 440/2008
according to guideline
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
12 Jan. 2007
Key result
Auto-ignition temperature:
205 °C
Atm. press.:
98 905 Pa


Auto-ignition was recorded at 255°C.

Atmospheric pressure during the pre-test was 98944 Pa.

Fuming and pop were observed.

Main study


Table 4.12/1: Lowest Values Main Study




Ignition delay

Drops used

First Experiment

211 °C

20 seconds


Second Experiment

211 °C

25 seconds


Third Experiment

205 °C

26 seconds



The auto ignition temperature (result of determination) is the lowest value from the lowest values of the three experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto ignition temperature is stated as 205 °C.

The three lowest values of the main study lay within a range of 10 K (as required for auto ignition temperatures below 300 °C)


Detailed observations are available in the study report.

This parameter/method is not relevant for classification; however the information is useful regarding process safety and potential additional fire hazard.
No particular hazard is anticipated in normal conditions of storage.
Executive summary:

The auto-ignition temperature of the substance was tested under GLP, according to DIN 51794 standard (listed in EU A.15 guideline).

The test substance was injected into a heated flask, until the lowest temperature at which ignition occurs was determined. Three independent determinations were performed.

The auto-ignition temperature (rounded down to a whole multiple of 5 °C) of test item was stated as 205°C at 98905 Pa.

Description of key information

No particular hazard is anticipated in normal conditions of storage.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
205 °C

Additional information

A reliable experimental study, conducted according to a recognized DIN/EU method and under GLP, is available.

Despite minor restrictions due to incomplete test item identification, it is considered as key study, and the result is retained as key data.

This parameter is not relevant for classification, however the information is useful regarding process safety and potential additional fire hazard.