Registration Dossier

Administrative data

flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
The preliminary screening test was performed for the determination of the flammability of the test
The test substance was loosely filled into an aluminum mould of 250 mm long with a triangular crosssection
of inner height of 10 mm and width of 20 mm. On both sides of the mould in a longitudinal
direction two metal plates were mounted as lateral limitations that project 2 mm beyond the upper
edge of the triangular cross section. The mould was dropped three times from a height of 2 cm onto a
solid surface. If necessary, the mould was filled up again. The lateral limitations were removed and the
excess substance was scraped off. A non-combustible and non-porous plate was placed on top of the
mould. The complete assembly was inverted and the mould removed.
A flame of a gas burner was applied to one end of the test substance pile for 2 minutes. The pile was
visually interpreted for propagation of combustion either by burning with a flame or smouldering. If
applicable, the time of burning over a distance of 200 mm was measured after the pile had burned a
distance of 50 mm.

Data source

Reference Type:
study report

Materials and methods

Test guidelineopen allclose all
according to
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
according to
EU Method A.10 (Flammability (Solids))
GLP compliance:
yes (incl. certificate)

Test material

Test material form:
solid: flakes

Results and discussion

Flammable solids
Key result
Test procedure:
burning rate test: preliminary screening test
Burning time:
> 4 min
Remarks on result:
substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

Applicant's summary and conclusion

Interpretation of results:
not classified based on GHS criteria
No propagation of combustion of the test substance along 200 mm length of the pile within 4 minutes
was observed. According to the guidelines, performance of the burning rate test is not required. Based
on the results obtained, the test substance is considered „not highly flammable