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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:
2015-04-10 to 2015-04-17
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))
Version / remarks:
Council Regulation (EC) No 440/2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Key result
Auto-ignition temperature:
245 °C
Atm. press.:
>= 1 003 - <= 1 017 hPa

Table of results

Preliminary test

Test no.

Sample volume [µl]

Barometric pressure [mbar]

T [°C]

Ignition delay [s]

Test result

1

150

1012

300

6

ignition

2

150

1012

280

12

ignition

3

150

1012

260

35

ignition

4

150

1012

240

 -

no ignition

5

150

1012

245

 -

no ignition

6

150

1012

250

 -

no ignition

7

150

1012

255

 -

no ignition

8

150

1012

258

56

 ignition

9

150

1012

258

40

ignition

Result value from preliminary test series:  ignition: 258°C, no ignition: 255°C

 

Main test:

First main test series

 

Test no.

Sample volume

[µl]

Barometric pressure [mbar]

T

[°C]

Ignition delay

[s]

Test result

1

150

1017

256

-

no ignition

2

300

1017

256

30

ignition

3

300

1017

253

35

ignition

4

300

1017

251

42

ignition

5

300

1017

249

48

ignition

6

300

1017

247

54

ignition

7

300

1017

245

-

no ignition

8

400

1017

245

60

ignition

9

400

1017

243

-

no ignition

10

450

1017

243

-

no ignition

11

200

1017

243

-

no ignition

12

100

1017

243

-

no ignition

 

Results first main testseries: ignition: 245°C, no ignition: 243°C

 

Second main test series

 

Test no.

Sample volume

[µl]

Barometric pressure [mbar]

T

[°C]

Ignition delay

[s]

Test result

1

300

1015

245

-

no ignition

2

450

1015

245

-

no ignition

3

150

1015

245

-

no ignition

4

300

1015

245

-

no ignition

5

450

1015

245

-

no ignition

6

450

1015

247

-

no ignition

7

400

1015

249

58

ignition

8

400

1015

247

66

ignition

9

400

1015

245

-

no ignition

10

300

1015

245

-

no ignition

11

200

1015

245

-

no ignition

12

150

1015

245

-

no ignition

 

Results second main test:  ignition: 247°C, no ignition: 245°C

Retest

Test no.

Sample volume

[µl]

Barometric pressure [mbar]

T

[°C]

Ignition delay

[s]

Test result

1

400

1003

250

45

ignition

2

400

1003

248

-

no ignition

3

300

1003

248

-

no ignition

4

200

1003

248

-

no ignition

5

100

1003

248

-

no ignition

6

450

1003

248

-

no ignition

7

400

1003

248

55

ignition

8

400

1003

246

65

ignition

9

400

1003

245

75

ignition

10

400

1003

244

-

no ignition

11

300

1003

244

-

no ignition

12

200

1003

244

-

no ignition

13

100

1003

244

-

no ignition

14

450

1003

244

-

no ignition

 

Results retest:  ignition: 245°C, no ignition: 244°C

The retest was performed to check for reproducibility of the test results.

 

Summary of result

lowest value from pretest:

258°C

lowest value for first main test:

245°C

lowest value for second main test:

247°C

lowest value for retest:

245°C

Lowest value of all main test/retest series: 245°C

Conclusions:
A measured auto-ignition temperature value of 245°C at 1003-1017 hPa (mbar) was determined for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Auto-ignition temperature: 245°C at 1003-1017 hPa (DIN 51794)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
245 °C

Additional information

A measured auto-ignition temperature value of 245°C at 1003-1017 hPa was determined for the substance using a relevant test method according to EU Method A.15 and in compliance with GLP. The result is considered to be reliable.