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Physical & Chemical properties

Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-04-04 to 2017-04-14
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 (Determination of ignition temperature)
Version / remarks:
2003
Guideline:
other: DIN EN 14522, (Determination of the auto ignition temperature of gases and liquids)
Version / remarks:
2005
GLP compliance:
yes (incl. QA statement)
Key result
Auto-ignition temperature:
245 °C
Atm. press.:
>= 999 - <= 1 015 hPa

Table1:   Results of the preliminary test

 

Preliminary test

Temperature / °C

302.5

Ignition / +/-

+

 

Atmospheric pressure: 990.0 hPa

In the preliminary test, the lowest temperature at which an ignition occurred was 302.5 °C.

Table2:    Main test: Lowest temperatures at which an ignition occurred

Main test series

Lowest temperatures of an ignition / °C

Highest temperatures without an ignition / °C

Atmospheric Pressure / hPa

1

247.6

247.2

990.0

2

249.4

248.9

990.0

3

251.5

251.1

990.0

4

251.9

248.9

1015.0

Based on results of the main test series, the lowest auto-ignition temperature was 247.6 °C.

Regulation EC No. 440/2008 and DIN 51794:The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 245 °C.

For information:

DIN EN 14522:The auto-ignition temperature reduced by 1.5% and rounded to the nearest integer temperature was determined as 244 °C.

According to DIN EN 13463-1 the test item has to be assigned to temperature class T3 .

Conclusions:
The test item has an auto-ignition temperature of 245°C at 990 hPa.

Description of key information

The test item has an auto-ignition temperature of 245°C. It was determined in a reliable study conducted according to an appropriate standard tes method (EU method A.15).

Key value for chemical safety assessment

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

Additional information