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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 2017-08-29 to 2017-08-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN EN 14522, Method S (Determination of the auto ignition temperature of gases and vapours)
Deviations:
no
GLP compliance:
no
Key result
Auto-ignition temperature:
265 °C
Atm. press.:
1 013.25 hPa

Preliminary test

In the preliminary test, an ignition was observed at 282 °C.

Main test

Main test series

Lowest temperature of an ignition (°C)

Highest temperature without an ignition (°C)

Atmospheric pressure (hPa)

1

267

263

998

2

270

268

997

3

271

268

997

Based on results of the main test series, the lowest auto-ignition temperature was 267 °C.

Regulation EC No. 440/2008 and DIN 51794: The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 265 °C.

Conclusions:
The auto-ignition temperature of the test substance was determined to be 265 °C.
Executive summary:

A study was conducted according to Regulation (EC) No 440/2008 Part A.15, DIN 14522 (2005) and DIN 51794 (2003) 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 three 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 3 - 4 K until no ignition was observed. According to the 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 265 °C at 997 - 998 hPa. 

Description of key information

The test item has an auto-ignition temperature of 265 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
265 °C

Additional information

A study was conducted according to Regulation (EC) No 440/2008 Part A.15, DIN 14522 (2005) and DIN 51794 (2003) to determine the auto-ignition temperature of the test substance (2017). In a preliminary test the approximate auto-ignition temperature was determined. For the main test three 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 3 - 4 K until no ignition was observed. According to the 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 265 °C at 997 - 998 hPa.