Registration Dossier
Registration Dossier
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EC number: 200-460-4 | CAS number: 60-18-4
Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- flammable solids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- according to guideline
- Guideline:
- other: UN-Brennbarkeitstests Klasse 4.1.
- Specific details on test material used for the study:
- No further details available.
- Key result
- Test procedure:
- burning rate test over 100 mm length
- Burning time:
- 8.75 min
- Remarks on result:
- other: actual result: 8 min 44 sec.
- Interpretation of results:
- not classified based on GHS criteria
- Conclusions:
- The test substance was determined to be readily combustible.
- Executive summary:
The burning rate of the test substance was determined via the propagation of combustion over a 100 mm long powder train. The average observed burning rate is 8m 44s/100mm.
According to the criteria described in Regulation (EC) 1272/2008 on classification, labelling and packaging of substances and mixtures (CLP), classification as a flammable solid is required when the burning rate is more than 2.2 mm/s. Based on the observed burning rate of 0.19 mm/s for L-tyrosine, classification of the substance as a flammable solid is not required.
Reference
The burning time was measured on a 100 mm powder train, and was found to be 8 minutes 44 seconds.
From this, a burning rate of 0.19 mm/s can be calculated.
Description of key information
Burning rate: 0.19 mm/s.
Key value for chemical safety assessment
- Flammability:
- not classified
Additional information
Justification for classification or non-classification
According to the criteria described in Regulation (EC) 1272/2008 on classification, labelling and packaging of substances and mixtures (CLP), classification as a flammable solid is required when the burning rate is more than 2.2 mm/s. Based on the observed burning rate of 0.19 mm/s for L-tyrosine, classification of the substance as a flammable solid is not required.
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