Registration Dossier

Administrative data

Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The test was not conducted to GLP but was conducted by a recognised accredited laboratory to a recognised method and study report is available.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1985
Report Date:
1985

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
Version / remarks:
84/449/EEC
Deviations:
no
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:

- Physical state: solid
- Impurities (identity and concentrations): Water content specified to be 0.3%
- Purity test date: Not stated
- Lot/batch No.: Not stated
- Expiration date of the lot/batch: Not stated
- Stability under test conditions: Not stated
- Storage condition of test material: Not stated
- Other:

Results and discussion

Flammable solids
Test procedure:
burning time (test type not further specified)
Remarks:
or specified in description of method (migrated information)
Burning time:
< 45 s
Pyrophoric solids
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
ambiguous
Pyrophoric liquids
Test procedure:
ignition time on contact with air
Remarks:
Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
Remarks on result:
ambiguous

Any other information on results incl. tables

The substance can be easily ignited with a gas burner and burns with a sooty flame. The burning times over a distance of 10mm were 36, 46, 49, 37, 39 and 46 seconds. The burning process appears to take place in the upper layer of the powder pile only, the lower layer of the pile remains unburnt.

Applicant's summary and conclusion

Interpretation of results:
highly flammable
Remarks:
Migrated information
Conclusions:
The substance is considered highly flammable because three out of six of the measured burning times were below 45 seconds.
Executive summary:

The test was conducted according to the A10 method and the time measured for 10 mm piles of substance to burn. The subatnce is easily ignited with a gas burner, burning with a sooty flame and burns rapidly in the upper layer of the pile only. Half of the measured burning times were below 45 seconds and the substance is considered highly flammable. The risk phrase R11: Highly flammable is applicable.