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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:
26-27 June 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The study was conducted according to an internationally recognised method. Test substance is adequately characterised. Therefore full validation applies.
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Version / remarks:
2008
Deviations:
yes
Remarks:
but uncritical, see paragraph "performance of the study"
Qualifier:
according to
Guideline:
other: DIN 51794 and DIN EN 14522
Deviations:
no
Principles of method if other than guideline:
not relevant
GLP compliance:
yes (incl. certificate)
Remarks:
Inspected on 15 and 16 November 2017/ Signed on 15 May 2018
Key result
Auto-ignition temperature:
245 °C
Atm. press.:
>= 1 006 - <= 1 006.7 mBar

The requirements for repeatability of the DIN standard are stated as follows: Three lowest values of the main test have to lie within a range of 5 °C (if auto ignition temperature is below 300 °C).

The following lowest values were recorded:

Table:      Lowest Values Main Test

Experiment

Value

Ignition delay

Drops used

First test series

252°C

44 s

5

Second test series

248°C

2 min, 32 s

5

Third test series

252°C

1 min, 49 s

7

 

The lowest value of the auto ignition temperature was 248 °C. This value was determined using 5 drops of test item. The test item showed auto ignition after 2 min and 32 s.

The auto ignition temperature (result of determination) is the lowest value from the lowest values of the three experiments, rounded down to a whole multiple of 5 °C. Therefore, the auto ignition temperature was stated as 245 °C.

Conclusions:
The auto ignition temperature was determined in three independent determinations. A lowest value of the main test of 248°C was found.
Therefore, the auto-ignition temperature according to EU A.15 (rounded down to a whole multiple of 5 °C) of test item was stated as 245 °C.
No particular hazard is anticipated in normal conditions of storage.
Executive summary:

The study was conducted according to DIN 51794 and EU-Method A.15.

The auto ignition temperature was determined in three independent determinations. A lowest value of the main test of 248°C was found.

Therefore, the auto-ignition temperature according to EU A.15 (rounded down to a whole multiple of 5 °C) of test item was stated as 245 °C.

This value was determined using 5 drops of test item. The test item showed auto ignition after 2 min and 32 seconds.

Description of key information

The auto ignition temperature was determined in three independent determinations. A lowest value of the main test of 248 °C was found.

Therefore, the auto-ignition temperature according to EU A.15 (rounded down to a whole multiple of 5 °C) of test item was stated as 245 °C.

Key value for chemical safety assessment

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

Additional information

A fully reliable experimental study, conducted according to a recognized DIN/EU method and under GLP is available.

It is considered as a key study.

This parameter 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.