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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14-Jul-2014 to 16-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
GLP compliance:
yes (incl. QA statement)
Remarks:
Ministerium für Arbeit, Integration und Soziales des Landes Nordhein-Westfalen.
Auto-ignition temperature:
250 °C
Atm. press.:
1 013 hPa

Results

Test 1

Temperature (°C)

Injected volume (drops)

Time-lag until ignition (s)

300

5

1

295

5

1

290

5

3

285

5 / 10

- / 1

280

10

1

275

10

7

270

10

7

265

10

11

260

10 / 15

- / 17

255

 15

22

250

15 / 20

- / 26

245

20

-

248

20

-

 

Test 2

Temperature (°C)

Injected volume (drops)

Time-lag until ignition (s)

260

5 / 10 / 15

- / - / 9

255

15 / 20

- / 11

250

20

20

245

20

-

248

20

-

 

Test 3

Temperature (°C)

Injected volume (drops)

Time-lag until ignition (s)

260

5 / 10 / 15

- / - / 6

255

15

15

250

15 / 20

- / -

253

20

-

 

The measured lowest ignition temperatures of the main test are < 300°C and do not differ by more than 10°C, thus the test is satisfactory.

The auto-ignition temperature is defined as the lowest temperature of all single results of the main test, but reduced to the next lower multiple of 5°C.

 

Test 1

Test 2

Test 3

Lowest ignition temperatures (°C)

250

250

255

Auto-ignition temperature (°C)

250

 

The auto-ignition temperature of the test item was determined according to EU test method A. 15 (Council Regulation (EC) NO. 440/2008, Official Journal L 142/1 2008) and DIN 51 794 (2003).

Auto-ignition temperature (1009 hPa): 250°C 

Conclusions:
An auto-ignition temperature value of 250°C at 1009 hPa was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.

Description of key information

250°C at 1009 hPa (measured)

Key value for chemical safety assessment

Additional information

An auto-ignition temperature of 250°C was determined according to EU Test Method A.15. This is supported by measured values of approximately 245°C and 265°C (at 1013 hPa) from secondary sources (company data). The supporting results are in good agreement with the key study.