Registration Dossier

Administrative data

Link to relevant study record(s)

Description of key information

not highly flammable

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

The flammability of the substance was evaluated according to the EU Method A.10 (Flammability (Solids).

The substance is not considered highly flammable.

Justification for classification or non-classification

According to Regulation CLP 1272/2008, Annex I, section 2.7.1.1, powdered, granular or pasty substances or mixtures shall be classified as readily combustible solids when the time of burning of one or more of the test runs, performed in accordance with the test method described in Part III, sub-section 33.2.1, of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, is less than 4 seconds or the rate of burning is more than 2,2 mm/s.

Criteria for flammable solids are:

Category 1: Burning rate test

Substances and mixtures other than metal powders:

(a) wetted zone does not stop fire and

(b) burning time < 45 seconds or burning rate > 2,2 mm/s

Category 2: Burning rate test

Substances and mixtures other than metal powders:

(a) wetted zone stops the fire for at least 4 minutes and

(b) burning time < 45 seconds or burning rate > 2,2 mm/s

The flammability of the substance was evaluated according to the EU Method A.10 (Flammability (Solids).

In a preliminary test (40 mm pile) a smouldering fire was observed. Therefore a main test was performed, assessing before the moisture content (5.1 % by drying).

In the main test a smouldering fire, throughout the whole mass was observed, but the substance is not considered highly flammable. The burning time was in the range of 335 -390 seconds for 100 mm, therefore the substance is not classified as flammable.