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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:
2015-12-09 to 2015-12-10
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))
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: DIN 51794: Determination of Ignition Temperature, 2003
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: DIN EN 14522: Determination of the Ignition Temperature of gases and liquids, 2005
Deviations:
no
GLP compliance:
no
Remarks:
The study was conducted under supervision of a quality assurance unit which had ensured e.g instrumentation validation, reagent/materials certification, analyst certification and providing standard operating procedures.
Key result
Auto-ignition temperature:
260 °C
Atm. press.:
1 021.8 - 1 024.6 hPa

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

268

266

1024.6

2

269

267

1024.6

3

264

262

1021.8

 

Based on results of the main test series, the lowest auto-ignition temperature was 264 °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 260 °C.

Conclusions:
The test substance was determined to have an auto-ignition temperature of 260 °C.
Executive summary:

A study was conducted according to Regulation (EC) No 440/2008 Part A.15, DIN EN 14522 (2005) and DIN 51794 (2003) to determine the auto-ignition temperature of the test substance. In a preliminary test the approximately auto-ignition temperature were determined. For the main test three test series were conducted. The temperature determined in the preliminary test was used as starting point for the main test. The temperature was decreased by 2 K until no ignition was observed. 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. Therefore the auto-ignition temperature was determined to be 260 °C at 1021.8 to 1024.6 hPa.

Description of key information

The test substance was determined to have an auto-ignition temperature of 260 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
260 °C

Additional information

A study was conducted according to Regulation (EC) No 440/2008 Part A.15, DIN EN 14522 (2005) and DIN 51794 (2003) to determine the auto-ignition temperature of the test substance. Three test series were conducted. The temperature was decreased by 2 K until no ignition was observed. The auto-ignition temperature was determined to be 260 °C at 1021.8 to 1024.6 hPa.