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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:
January 13, 2022 for experiments
February 21, 2022 for report
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to guideline
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Deviations:
no
GLP compliance:
no
Remarks:
internal study - performed in the spirit of GLP
Key result
Auto-ignition temperature:
445 °C
Remarks on result:
other: Atm. pressure not specified - Result accuracy +/- 5°C

The lowest temperature giving a positive effect was 449°C. The injected volume was 100 microL, the ignition delay was 19 s. At a temperature of 444°C no ignition was observed.
Therefore, after rounding-off to the next-lower multiple of 5°C:
Auto-ignition temperature of the test item: 445±5°C

Conclusions:
Auto-ignition temperature of the test item: 445 ± 5°C
Executive summary:

The Auto-ignition temperature of the test item was determined according to the DIN 51794.



The lowest temperature giving a positive effect was 449°C. The injected volume was 100 microL, the ignition delay was 19 s. At a temperature of 444°C no ignition was observed.



Therefore, after rounding-off to the next-lower multiple of 5°C:
Auto-ignition temperature of the test item: 445 ± 5°C

Description of key information

The Auto-ignition temperature of GR-87-6331 was determined according to the DIN 51794.



The lowest temperature giving a positive effect was 449°C. The injected volume was 100 microL, the ignition delay was 19 s. At a temperature of 444°C no ignition was observed.



Therefore, after rounding-off to the next-lower multiple of 5°C:
Auto-ignition temperature of GR-87-6331: 445 ± 5°C

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
445 °C

Additional information