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Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 2016-11-16 to 2017-04-12
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))
Deviations:
no
Qualifier:
according to
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Key result
Auto-ignition temperature:
115 °C
Atm. press.:
1 013.3 hPa

Two replicate main tests were performed under atmospheric pressure.

Experiment

Value (°C)

Ignition Delay time (sec)

Drops used

1

122.3

10

20

2

118.3

12

12

3

115.9

8

16

The lowest value of the auto-ignition temperature was 115.9 °C. This value was determined using 16 drops test item. The test item showed auto-ignition after 8 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 was determined to be 115 °C.

Conclusions:
The auto-ignition temperature of the test item was determined to be 115 °C.
Executive summary:

A study was conducted according to Regulation (EC) No 440/2008 Part A.15 and DIN 51794 to determine the auto-ignition temperature of the test substance. In a preliminary test the approximate auto-ignition temperature was determined. For the main test two test series were conducted. The temperature determined in the preliminary test was used as starting point for the main test. The temperature was decreased by 2 K until no ignition was observed. According to criteria laid down in Regulation EC No. 440/2008 method A.15 and DIN 51794 the auto-ignition temperature is the lowest value rounded down to a whole multiple of 5 °C. Therefore, the auto-ignition temperature was determined to be 115 °C at atmospheric pressure.

Description of key information

The auto-ignition temperature of the test item was determined to be 115 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
115 °C

Additional information

A study was conducted according to Regulation (EC) No 440/2008 Part A.15 and DIN 51794 to determine the auto-ignition temperature of the test substance. In a preliminary test the approximate auto-ignition temperature was determined. For the main test two test series were conducted. The temperature determined in the preliminary test was used as starting point for the main test. The temperature was decreased by 2 K until no ignition was observed. According to criteria laid down in Regulation EC No. 440/2008 method A.15 and DIN 51794 the auto-ignition temperature is the lowest value rounded down to a whole multiple of 5 °C. Therefore, the auto-ignition temperature was determined to be 115 °C at atmospheric pressure.