Registration Dossier
Registration Dossier
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EC number: 283-294-5 | CAS number: 84604-16-0 Extractives and their physically modified derivatives such as tinctures, concretes, absolutes, essential oils, oleoresins, terpenes, terpene-free fractions, distillates, residues, etc., obtained from Saccharomyces cerevisiae, Saccharomycelaceae.
Explosiveness
Administrative data
- Endpoint:
- explosive properties of explosives
- 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:
- 2 008
- Report date:
- 2008
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: VDI 2263 (spark test)
- Qualifier:
- according to guideline
- Guideline:
- other: prEN 14034 (suspended dust)
- Principles of method if other than guideline:
- - VDI 2263, SOP N° 013. Stationary spark (electrostatic) testing in a modified Hartmann tube.
- Physical explosivity values: Pmax and Kmax, prEN 14034, SOP N° 002,221-226. Pyrotechnic ignition at 10 kJ inside a sphere of 20L, pressure rise is then determined. - GLP compliance:
- no
Test material
- 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) - NB: dried in vacuum 1h, 50°C
- Particle size: median < 63 µm
- Supplier: BioSpringer
- Analytical purity/impurities: not applicable (UVCB)
- Lot/batch No.: 070800870
- Expiration date of the lot/batch: not indicated
- Stability under test conditions: not indicated
- Storage condition of test material: not indicated
Constituent 1
Results and discussion
Small-scale preliminary tests
- Parameter:
- other: Explosive under influence of flame
- Remarks:
- migrated information
- Remarks on result:
- negative (not further specified)
- Remarks:
- upon electrostatic spark (for fine powder)
Any other information on results incl. tables
- Electrostatic spark ignition testing:
EMI ("Energie Minimale d'Inflammation" / minimal energy needed to inflame) was estimated as >1J.
- Pyrotechnic ignition testing at 10 kJ:
dP/dt max = 199 bar/s
Pmax = 7.1 bar
Kst = 54 bar.m/s
Class of dust explosion: St 1
Applicant's summary and conclusion
- Interpretation of results:
- non explosive
- Remarks:
- Migrated information
- Conclusions:
- Based on the results the test item does not need to be classified for explosivity.
- Executive summary:
Dried fine (<63 µm median size) powder Yeast extract is not explosive when submitted to electrostatic spark inflammation.
The minimal energy needed to inflame was estimated as >1J. Pyrotechnic ignition testing at 10 kJ showed pressure rise speed of 199 bar/s, Pmax = 7.1 bar and a St 1 class (minimal possible of 3 hazard classes) for dust explosion.
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