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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:
09 October 2018 to 22 November 2018
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:
2016
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Version / remarks:
2003
Deviations:
no
GLP compliance:
yes
Key result
Auto-ignition temperature:
235 °C
Atm. press.:
>= 1 014 - <= 1 018 hPa

Preliminary Test

-The estimated auto-ignition temperature was 245 °C.

 

Main Study

- Ignition of the test material within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 10 °C. According to the guidelines, no further testing was required.

- The lowest temperature at which ignition of the test material occurred was 239 °C. This temperature was rounded down to the nearest multiple of 5 °C giving an auto-ignition temperature of the test material of 235 °C.

 

Table 2: Auto-ignition Temperature of the Test Material

Test

Volume (µL)

Auto-ignition Temperature (°C)

Ignition Delay

Colour of the Flame

Minimum Auto-ignition Temperature (°C)

1

70

249

23

yellow

239

150

242

33

yellow

220

239

39

yellow

400

250

21

yellow

2

50

252

22

yellow

248

250

248

18

yellow

500

251

19

yellow

3

60

249

24

yellow

244

200

244

27

yellow

420

249

15

yellow

Conclusions:
Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 235 °C.
Executive summary:

The auto-ignition temperature of the test material was investigated in accordance with the standardised guidelines EU Method A.15 and DIN 51794, under GLP conditions.

The atmospheric pressure was 1014 and 1018 hPa.

Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 235 °C.

Description of key information

Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 235 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
235 °C

Additional information

The auto-ignition temperature of the test material was investigated in accordance with the standardised guidelines EU Method A.15 and DIN 51794, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The atmospheric pressure was 1014 and 1018 hPa.

Under the conditions of this study, the test material is auto-ignitable with an auto-ignition temperature of 235 °C.