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Physical & Chemical properties

Auto flammability

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Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Non-GLP (acceptable for physico-chemistry).

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: EN 50281 (layer test)
Qualifier:
according to guideline
Guideline:
other: VDI 2263 (suspended dust)
Principles of method if other than guideline:
Inflammation temperatures were determined for powder:
- as a 5 mm layer / 10 cm diameter mass, heated progressively: EN 50281, SOP N° 030
- as dust in suspension: VDI 2263, SOP N° 007
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
Saccharomyces cerevisiae, ext.
EC Number:
283-294-5
EC Name:
Saccharomyces cerevisiae, ext.
Cas Number:
84604-16-0
Molecular formula:
Not applicable as the substance is an UVCB
IUPAC Name:
Yeast extract, Saccharomyces cerevisiae
Details on test material:
- Name of test material (as cited in study report): Extrait de levure SP0402/20 MG L
- Physical state: solid (powder)
- Supplier: BioSpringer
- Analytical purity/impurities: not applicable (UVCB)
- Lot/batch No.: 060800681
- Expiration date of the lot/batch: not indicated
- Stability under test conditions: not indicated
- Storage condition of test material: not indicated

Results and discussion

Relative self-ignition temperature (solids)open allclose all
Relative self-ignition temperature:
> 400 °C
Remarks on result:
other: layer assay
Remarks:
at atm. press. of other:likely atmospheric pressure (not indicated)
Relative self-ignition temperature:
> 500 °C
Remarks on result:
other: suspended dust assay
Remarks:
at atm. press. of other:likely atmospheric pressure (not indicated)

Applicant's summary and conclusion

Conclusions:
Based on the results the test item does not need to be classified for flammability.
Executive summary:

Yeast extract powder had no ability to self-ignite:

- as simple layer, after filtering at 200 µm: self-ignition temperature > 400°C

- as suspended dust, after vacuum drying: self-ignition temperature > 500°C

Pressure was not indicated but since the systems did not seem to be closed, it was likely atmospheric pressure.