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EC number: 203-184-2 | CAS number: 104-20-1
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-flammability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015-12-11 to 2015-12-14
- 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:
- DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
- Version / remarks:
- 2003
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- DIN EN 14522, Method P (Determination of the auto ignition temperature of gases and vapours)
- Deviations:
- no
- GLP compliance:
- no
- Key result
- Auto-ignition temperature:
- 450 °C
- Atm. press.:
- 1 013.4 hPa
- Conclusions:
- The test item has an auto-ignition temperature of 450°C
- Executive summary:
The test has been performed according to EC No. 440/2008 Method A.15. Auto-Ignition Temperature (Liquids and Gases) and DIN 51794 (2003): Determination of Ignition Temperature without significant deviations.
The test determines the lowest temperature at which a gas/air- or vapour/air-mixture of the flammable test item ignites in contact with a hot surface. For that purpose, the amount of the test item and the temperature of the hot surface are varied. In this way, the lowest temperature rounded down to the nearest multiple of 5 °C is determined at which the test item ignites.
The test item has an auto-ignition temperature of 450°C.
According to DIN EN 13463 -1 the test item has to be assigned to temperature class T1.
Reference
1. Preliminary test results:
In the preliminary test, the lowest temperature at which an ignition occured was 478°C
2. Main test:
2.1. Determination of the first main test series using the semi-automated apparatus ZT3:
| 1st main test series | ||
| Temperature (C°) | Drops | Ignition (+/-) |
| 474 | 5 | + |
| 469 | 5 | + |
| 466 | 5 | + |
| 461 | 5 | + |
| 457 | 5 | + |
| 452 | 5 | + |
| 447 | 5 | - |
| 447 | 10 | - |
| 448 | 9 | - |
| 447 | 8 | - |
| 448 | 6 | - |
| 448 | 7 | - |
| 447 | 4 | - |
| 448 | 3 | - |
| 447 | 2 | - |
| 448 | 1 | - |
| 450 | 4 | - |
| 451 | 6 | + |
| Atmospheric pressure: 1009.8 - 1014.3 hPa | ||
2.2. Determination of the second and third main test series using the fully automated apparatus ZT2:
| 2nd Main test series | 3rd Main test series | ||||
| Temperature (C°) | Drops | Ignition (+/-) | Temperature (C°) | Drops | Ignition (+/-) |
| 452 | 4 | + | 453 | 4 | + |
| 452 | 4 | - | 451 | 4 | - |
| 450 | 3 | - | 450 | 3 | - |
| 450 | 2 | - | 450 | 2 | - |
| 450 | 1 | - | 450 | 1 | - |
| 450 | 5 | - | 450 | 5 | - |
| 450 | 6 | - | 451 | 6 | - |
| 450 | 7 | - | 450 | 7 | - |
| 451 | 8 | - | 451 | 8 | - |
| 450 | 9 | - | 450 | 9 | - |
| 450 | 10 | - | 451 | 10 | - |
| Atmospheric pressure: 1009.8 - 1014.3 hPa | |||||
2.3 Lowest temperature at which an ignition occured:
| Main test series | Lowest temperature of an ignition | Highest temperatures without an ignition | Atmospheric Pressure |
| 1 | 451 °C | 448°C | 1009.8 - 1014.3 hPa |
| 2 | 452°C | 450°C | 1013.4 hPa |
| 3 | 453°C | 451°C | 1013.4 hPa |
Based on the result of the main study the lowest auto-ignition temperature was 451°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 450°C.
3. Final results: According to the test results, the test item belongs to temperature class T1.
Description of key information
Auto-ignition temperature is 450°C at atmospheric pressure as determined according to DIN EN 14522 (2005).
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 450 °C
Additional information
The test has been performed according to EC No. 440/2008 Method A.15. Auto-Ignition Temperature (Liquids and Gases), DIN 51794 (2003): Determination of Ignition Temperature and DIN EN 14522 (2005): Determination of Ignition Temperature without significant deviations.
The test determines the lowest temperature at which a gas/air- or vapour/air-mixture of the flammable test item ignites in contact with a hot surface. For that purpose, the amount of the test item and the temperature of the hot surface are varied. In this way, the lowest temperature rounded down to the nearest multiple of 5 °C is determined at which the test item ignites.
The test item has an auto-ignition temperature of 450°C.
According to DIN EN 13463 -1 the test item has to be assigned to temperature class T1.
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