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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:
21 to 22 July 2016
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))
Qualifier:
according to
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Qualifier:
according to
Guideline:
other: DIN EN 14522 (2005): Determination of the Ignition Temperature of gases and liquids
GLP compliance:
no
Key result
Auto-ignition temperature:
290 °C
Atm. press.:
ca. 1 004 hPa

Preliminary Test

An approximate value of the ignition temperature of the test item was first determined by a preliminary test. The results are summarized in the following table. An “ignition” is indicated as “+” and “no ignition” as “-“. 5 drops were added into the Erlenmeyer flask at each temperature. In the preliminary test, an ignition was observed at 306 °C.

 

 

Preliminary test

Temperature / °C

201

251

299

351

333

317

306

Ignition / +/-

-

-

-

+

+

+

+

 

Atmospheric pressure: 1003.7 hPa

 

 

Main Test

The lowest temperatures at which an ignition occurred in the main tests are given in the following table. Based on results of the main test series, the lowest auto-ignition temperature was 293 °C.

 

Main test series

Lowest temperatures of an ignition

Highest temperatures without an ignition

Atmospheric Pressure

1

293 °C

289 °C

1003.8 – 1004.1 hPa

2

295 °C

292 °C

1004.0 hPa

3

294 °C

293 °C

1004.0 hPa

 

Regulation EC No. 440/2008 and DIN 51794: The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 290 °C.

 

 

Final Results

The test item has an auto-ignition temperature of 290 °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 290 °C (at ca. 1004 hPa) was determined for the test item according to E.U. Method A.15.

Description of key information

Auto-ignition temperature: 290 °C at 1004 hPa (E.U. Method A.15)

Key value for chemical safety assessment

Additional information