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Diss Factsheets

Administrative data

relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16-19 July 2010
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Gudeline study (EU A.16)

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guidelineopen allclose all
according to guideline
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
according to guideline
other: VDI 2263, sheet 1
according to guideline
other: Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, 4th edition, 2003: Appendix 6: Screening Procedures, Division 4.2

Test material

Constituent 1
Reference substance name:
Montan waxes, type CaV 102
Montan waxes, type CaV 102
Details on test material:
Test Item: Licomont CaV 102 Fine Grain
CAS-No: 68308-22-5, 8002-53-7, 68476-03-9
Appearance: Light yellowish powder
Storage conditions: Dry at room temperature

Results and discussion

Relative self-ignition temperature (solids)
Relative self-ignition temperature:
> 400 °C
Remarks on result:
other: No self-ignition of the pure test substance up to the melting (sample flows out of the wire basket).

Any other information on results incl. tables


In the investigation of self-ignition in the Grewer-oven for the pure test item and for the test item in mixture with Kieselgur an endothermic process was detected at 80 °C, which may indicate at least a partial softening or melting of the test item. For the pure test item no exothermal or further endothermic effect is detected up to the maximum temperature of about 400 °C. After the measurement the basket of the pure test item is empty. The complete test item flowed out of the basket. This indicates that the test item liquefied over the measurement up to 400 °C and flowed out of the wire basket before the self-heating took place.

The test item in mixture with Kieselgur indicated a multi-stage exothermal effect at 120 °C which leads to a maximum temperature of 500 °C.

Applicant's summary and conclusion

No self-ignition of the test substance up to its melting.
Executive summary:

The auto-flammability of the test substance was determined in a guideline study (EU A.16). No self-ignition of the pure test substance occurred up to its melting. The test item has no self-ignition temperature according to EC 440/2008, Annex V, Part A, A.16. up to the melting of the test item or the maximum temperature of 400 °C, respectively.