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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2000-09-19 to 2000-09-22
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
EEC Commission Directive 92/69 - A15 method (1992)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Key result
Auto-ignition temperature:
437 °C
Atm. press.:
97.4 kPa




Volume of test item injected in the oven: 70 μL


Number of injections: 12
















































Assay No.



Auto-ignition


temperature (°C)



Ignition lag


(seconds)



Maximal temperature of the air


recorded in the center of the test


flask after auto-ignition (°C)



Atmospheric


pressure (kPa)



1



437



8.3



442



97.4



2



437



8.1



441



97.4



3



437



8.9



453



97.4



4



437



7.8



457



97.4



5



436



11.3



441



97.4



 




Conclusions:
The mean auto-ignition temperature of the test item was determined to be 437 °C ± 3 °C.
Executive summary:


A study was conducted according to Regulation (EC) No 92/69 method A.15 and DIN 51794 to determine the auto-ignition temperature of the test substance. Twelve injections of the test item were made around the auto-ignition point, which was determined in a preliminary test. Five values, in temperature steps of 1 to 3 °C maximum were recorded until the lowest temperature at which ignition occurs was obtained. Therefore, the mean auto-ignition temperature was determined to be 437 °C at 97.4 kPa.

Description of key information


The mean auto-ignition temperature of the test item was determined to be 437 °C ± 3 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
437 °C

Additional information


A study was conducted according to Regulation (EC) No 92/69 method A.15 and DIN 51794 to determine the auto-ignition temperature of the test substance. Twelve injections of the test item were made around the auto-ignition point, which was determined in a preliminary test. Five values, in temperature steps of 1 to 3 °C maximum were recorded until the lowest temperature at which ignition occurs was obtained. Therefore, the mean auto-ignition temperature was determined to be 437 °C at 97.4 kPa.