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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:
March 11, 2019 - March 19, 2019
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, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
equivalent or similar to
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
GLP compliance:
yes (incl. certificate)
Remarks:
Date of inspection 20 and 21 June 2017; Signed on 04 September 2017
Key result
Auto-ignition temperature:
250 °C
Atm. press.:
>= 997.9 - <= 1 021.7 hPa

Preliminary test

The following table shows the results of the preliminary test. Temperatures where auto-ignition was detected are marked with +; temperatures where no auto-ignition was detected are marked with - in the table below. The amount of test item tested at each measurement is indicated as numbers of portions (i.e. drops). The results are summarized in Table.

Preliminary test

T / °C

portions

+ / -

Time lag / s

202

5

-

-

252

5

-

-

302

5

+

0

272

5

+

8

barometric pressure: 1011.6 hPa

The lowest auto-ignition temperature of the test item was determined to be 272 °C in the preliminary test.

Main test

The results of the main test are compiled in the table below.

Main test series

Auto-ignition temperature / °C

Time lag / s

1stmain test (5 K)

253

40

1stmain test (2 K)

253

40

2ndmain test (2 K)

252

50

3rdmain test (2 K)

251

40

The lowest auto-ignition temperature of the test item was determined to be 251 °C in the main test. Due to safety reasons and according to the guidelines the lowest measured temperature at which an ignition was observed was rounded to the next lower number divisible by 5, giving a value of 250 °C.

Final results

The auto-ignition temperature of the test item according to the auto-ignition test conditions in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.15. was 250 °C.

Conclusions:
The auto-ignition temperature of the test item according to the auto-ignition test conditions in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.15. was 250 °C.

Description of key information

The auto-ignition temperature of the test item according to the auto-ignition test conditions in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.15. was 250 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
250 °C

Additional information