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EC number: 935-977-0 | CAS number: -
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11.11.2008 - 22.01.2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Screening test - Grewen oven
- Deviations:
- no
- GLP compliance:
- no
- Key result
- Remarks on result:
- no self ignition observed under the test conditions
- Conclusions:
- The test item melted and no self-ignition temperature was observed up to 435 °C.
- Executive summary:
A study was conducted to determine the relative self-ignition temperature of the test item using the Grewer Oven. The test is designed to determine the relative auto-ignition temperature of a product in a hot air-stream (100 - 120 L/h). 8 cm of the test item were placed in a cylindrical fine wire mesh container and in a Grewer oven at 24 °C; the temperature/time curve relating to conditions in the centre of the sample and the reference item (graphite powder) was recorded while the temperature of the oven was increased to 435 °C at a rate of 1.8 °C/min, while a hot air stream was blown through them. The test item showed an endothermic effect in the temperature range of approx. 55 – 80 °C (melting) and no exothermal reaction of the test item was observed up to a maximum temperature of 435 °C. Thus, no self-ignition temperature could be stated.
Reference
The test item showed an endothermic effect in the temperature range of approx. 55 – 80 °C (melting) and no exothermal reaction of the test item was observed up to a maximum temperature of 435 °C
Description of key information
The test item melted and no self-ignition temperature was observed up to 435 °C.
Key value for chemical safety assessment
Additional information
A study was conducted to determine the relative self-ignition temperature of the test item using the Grewer Oven. The test is designed to determine the relative auto-ignition temperature of a product in a hot air-stream (100 - 120 L/h). 8 cm of the test item were placed in a cylindrical fine wire mesh container and in a Grewer oven at 24 °C; the temperature/time curve relating to conditions in the centre of the sample and the reference item (graphite powder) was recorded while the temperature of the oven was increased to 435 °C at a rate of 1.8 °C/min, while a hot air stream was blown through them. The test item showed an endothermic effect in the temperature range of approx. 55 – 80 °C (melting) and no exothermal reaction of the test item was observed up to a maximum temperature of 435 °C. Thus, no self-ignition temperature could be stated (reference 4.12-1).
Additionally, in accordance with column 2 of REACH Annex VII, the auto-flammability study does not need to be conducted as the substance is a solid with a melting point <160 °C (reference 4.12-2).
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