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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:
05-Sep-2014 to 10-Sep-2014
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:
other: DIN 51794 (2003)
GLP compliance:
no
Auto-ignition temperature:
310 °C
Atm. press.:
1 006.4 hPa
Remarks on result:
other:

Results

Preliminary test

An approximate value of the ignition temperature of the test item was first determined in a preliminary test. Results are given in the table below. An “ignition” is indicated by + and “no ignition” by -. Five drops we added into the Erlenmeyer flask at each temperature.

 

Results of the preliminary test

 

Preliminary test

Temperature / °C

233

282

336

326

Ignition + / -

-

-

+

-

Atmospheric pressure = 1002.7 hPa  

In the preliminary test, the lowest temperature at which an ignition occurred was 336 °C.

 

Main test

The results of the three test series are given in the following tables. An “ignition” is indicated by + and “no ignition” by -.

 

Results of first test series

Temperature / °C

Droplets

Ignition

328

4

+

323

5

+

318

5

-

318

8

-

318

10

-

318

1

-

318

2

-

318

3

-

318

4

-

318

6

-

318

7

-

318

9

-

Atmospheric pressure = 1002.7 hPa

 

 

Results of second test series

Temperature / °C

Droplets

Ignition

337

5

+

332

5

+

327

5

+

323

4

+

318

4

+

313

2

-

313

4

-

313

5

-

313

6

-

313

3

+

308

3

-

308

4

-

308

5

-

308

6

-

308

1

-

308

2

-

308

7

-

308

8

-

308

9

-

308

10

-

Atmospheric pressure = 1006.4 hPa

 

Results of third test series

Temperature / °C

Droplets

Ignition

322

4

+

317

4

-

317

3

-

317

2

-

317

5

-

317

1

-

317

6

-

317

7

-

317

8

-

317

9

-

317

10

-

Atmospheric pressure = 1006.1 hPa

 

The lowest temperatures at which an ignition occurred in the test series are given in the table below.

 

The lowest temperatures at which an ignition occurred

Test series number

Lowest temperatures of an ignition

Highest temperatures without an ignition

Atmospheric Pressure

1

323

318

1002.7

2

313

308

1006.4

3

322

317

1006.1

 

According to observations in the three test series the auto-ignition temperature rounded down with an accuracy of 5 °C was determined to be 310 °C.

 

Final results

The test item has an auto-ignition temperature of 310 °C according to 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 310 °C (at 1006.4 hPa) was determined for the test substance according to E.U. Method A.15.

Description of key information

Auto-ignition temperature: 310 °C at 1006.4 hPa (EU Method A.15)

Key value for chemical safety assessment

Additional information

An auto-ignition temperature value of 310 °C (at 1006.4 hPa) was determined for the test substance according to E.U. Method A.15.