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relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10 February 2009 - 08 May 2009
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: This study has been performed according to EC guidelines and according to GLP principles.

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guideline
according to guideline
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Details on test material:
- Name of test material (as cited in study report): Custom Red #2
- Substance type: violet powder
- Physical state: solid
- Purity test date: no data
- Lot/batch No.: C50APR0805D
- Expiration date of the lot/batch: 08 January 2011
- Stability under storage conditions: stable
- Storage condition of test material: at room temperature in the dark

Results and discussion

Any other information on results incl. tables

No endothermic or exothermic effect of the test substance between 17°C and 81°C (melting temperature of the test substance) was observed. It demonstrated that the test substance is not self-ignitable in the temperature range of 17°C - 81°C.


After the experiment, the test substance had turned into acharred residue and was collected in a container that was placed below the cube. It indicated that the test substance had been molten and decomposed and/or reacted during the experiment.

Applicant's summary and conclusion

The self-ignition temperature of the test substance was determined using a temperature programmed laboratory oven, a stainless steel wire mesh cube, NiCr/NiAl thermocouples and a temperature recording device. Based on the results obtained the test substance is considered ‘not self-ignitable’ in the temperature range of 17°C - 81°C.