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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:
from 2020-01-21 to 2020-01-27
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:
2008
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 (incl. QA statement)
Key result
Auto-ignition temperature:
260 °C
Atm. press.:
>= 1 015.5 - <= 1 029.7 hPa

Three replicate main tests were performed under atmospheric pressure (1015.5 – 1029.7 hPa).

The following lowest values were recorded:

Experiment

Value [°C]

Drops used

1

265

8

2

270

8

3

260

8

 

Difference between the lowest values of the main studies was 10 K, thus the validity criterion was fulfilled. The auto-ignition temperature is the lowest value from the lowest values measured during the Main study, rounded down to the nearest multiple of 5 °C. The lowest value of the auto-ignition temperature was 260 °C.

Conclusions:
The auto-ignition temperature of the test item was determined to be 260 °C.
Executive summary:

A study according to Regulation (EC) No. 440/2008 Method A.15 and DIN 51794:2003-05 was conducted to determine the relative auto-ignition temperature of the test item. In a preliminary test the ignition was observed at 282.3 °C. The main test was performed with the fully automated measurement system. The test program was repeated three times using a new, clean test vessel. The ignition temperatures were 265 °C, 270 °C and 260 °C, respectively. The auto-ignition temperature is the lowest value of the three runs rounded to the nearest multiple of 5 °C. The lowest value of the auto-ignition temperature was 260 °C.

Description of key information

The auto-ignition temperature of the test item was determined to be 260 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
260 °C

Additional information

A study according to Regulation (EC) No. 440/2008 Method A.15 and DIN 51794:2003-05 was conducted to determine the relative auto-ignition temperature of the test item. In a preliminary test the ignition was observed at 282.3 °C. The main test was performed with the fully automated measurement system. The test program was repeated three times using a new, clean test vessel. The ignition temperatures were 265 °C, 270 °C and 260 °C, respectively. The auto-ignition temperature is the lowest value of the three runs rounded to the nearest multiple of 5 °C. The lowest value of the auto-ignition temperature was 260 °C.

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