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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:
2 - 3 August 2016
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))
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Qualifier:
equivalent or similar to guideline
Guideline:
other: • DIN EN 14522 (2005): Determination of the Ignition Temperature of gases and liquids
GLP compliance:
no
Key result
Auto-ignition temperature:
265 °C
Atm. press.:
1 003.8 hPa

Results

 

Preliminary Test

An approximate value of the ignition temperature of the test item was first determined by a preliminary test. The results of the preliminary test are summarized in the table below. An “ignition” is indicated as “+” and “no ignition” as “-“. 5 drops were added into the Erlenmeyer flask at each temperature.

 

Results of the preliminary test

 

Preliminary test

Temperature / °C

201

253

299

283

264

Ignition / +/-

-

-

+

+

-

 

Atmospheric pressure: 1004.0 hPa

 

In the preliminary test, an ignition was observed at 283 °C.

 

Main Test

The lowest temperatures at which an ignition occurred in the main tests are given in the table below.

 

Lowest temperatures at which an ignition occurred

Main test series

Lowest temperatures of an ignition

Highest temperatures without an ignition

Atmospheric Pressure

1

272 °C

268 °C

1003.8 hPa

2

272 °C

270 °C

1003.8 hPa

3

270 °C

268 °C

1003.8 hPa

 

Based on results of the main test series, the lowest auto-ignition temperature was 270 °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.

Final Results

The test item has an auto-ignition temperature of 265 °C according to the Regulation EC No. 440/2008 Method A.15. Auto-Ignition Temperature (Liquids and Gases) and DIN 51794 (2003): Determination of Ignition Temperature.

Conclusions:
An auto-ignition temperature value of 265 °C (at 1003.8 hPa) was determined for the test substance according to E.U. Method A.15.

Description of key information

Auto-ignition temperature: 265 °C at 1003.8 hPa (EU Method A.15)

Key value for chemical safety assessment

Additional information