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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 2018-06-28 to 2019-02-05
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
GLP compliance:
yes (incl. QA statement)
Key result
Auto-ignition temperature:
415 °C
Atm. press.:
1 013 hPa

Table 1: Results of the preliminary test

 

Preliminary test

Temperature / °C

401

452

442

432

420

Ignition/+/-

-

+

+

+

-

 

Atmospheric pressure: 1005.4 hPa

In the preliminary test, the lowest temperature at which an ignition occurred was 432 °C.

 

Table 2: Lowest temperatures at which an ignition occurred

Main test series

Lowest temperatures of an ignition

Highest temperatures without an ignition

Atmospheric Pressure

1

416 °C

412 °C

1005.5-1005.6 hPa

2

417°C

415 °C

1009.0 hPa

3

420 °C

417 °C

1007.0-1007.5 hPa

Based on results of the main test series, the lowest auto-ignition temperature was 416 °C.

The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 415 °C.

Conclusions:
The test item has an auto-ignition temperature of 415 °C.
Executive summary:

According to Regulation EC No. 440/2008 method A.15. and DIN 51794 the auto-ignition temperature is regarded as the lowest temperature rounded down to the nearest multiple of 5 °C at which an ignition is observed in any of the main tests. The auto-ignition temperature rounded down to the nearest multiple of 5 °C was determined as 415 °C.

According to DIN EN 14522 the auto-ignition temperature is regarded as the lowest temperature reduced by 1.5 % and rounded to the nearest integer temperature at which an ignition is observed in any of the main tests.The auto-ignition temperature reduced by 1.5 % and rounded to the nearest integer temperature was determined as 409 °C.

Description of key information

The auto flammability of the test item is determined to be 415 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
415 °C

Additional information

The test item has an auto-ignition temperature of 415 °C according to the Regulation EC No 440/2008 Method A.15. Auto-Ignition Temperature (Liquids and Gases) and DIN 51794 (2003).