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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:
13-16 January 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The study was conducted according to an internationally recognised method, and under GLP. No significant deviation was reported. The substance is adequately characterised. Therefore full validation applies.
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
Regulation (EC) No. 440/2008
Deviations:
yes
Remarks:
time lag before ignition not reported
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Version / remarks:
2003
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. QA statement)
Remarks:
inspected on January 22 and 23, 2013 / signed on March 22, 2013
Specific details on test material used for the study:
STORAGE CONDITIONS OF TEST MATERIAL
Keep in the dark 0-10 °C under nitrogen
Key result
Auto-ignition temperature:
370 °C
Atm. press.:
993.3 - 1 003 hPa

Preliminary Test 

In the preliminary test, the lowest temperature at which an ignition occurred was 396 °C

Atmospheric pressure: 1003.0 hPa

 

Main test

Table 4.12/1: Lowest temperatures at which an ignition occurred

 

Main test series

Lowest temperatures of an ignition

Highest temperatures without an ignition

Atmospheric pressure

1

371 °C

366 °C

995.2 – 1003.0 hPa

2

371 °C

366 °C

993.3 – 1000.0 hPa

3

381 °C

376 °C

993.3 hPa

 

According to observations in the main test series, the auto-ignition temperature rounded down with an accuracy of 5 °C was determined to be 370 °C.

Results are within the required range of 20 °C, therefore the validity criterion is fulfilled.

Conclusions:
This parameter/method is not relevant for classification, however the information is useful regarding process safety and potential additional fire hazard.
No particular hazard is anticipated in normal conditions of storage.

Executive summary:

The substance was tested for its autoflammable properties, according to EU A.15 guideline and Standard DIN 51794.

Test substance was injected into a heated flask, until the lowest temperature at which ignition occurs was determined. Three main test series were performed.

The auto-ignition temperature of the test substance has been determined to be 370 °C at 993.3 – 1003.0 hPa.

Description of key information

No particular hazard is anticipated in normal conditions of storage.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
370 °C

Additional information

A fully reliable experimental study, conducted according to a recognized EC/DIN method, is available. Therefore it is considered as a key study, and the result is retained as key data.

This parameter/method is not relevant for classification, however the information is useful regarding process safety and potential additional fire hazard.