Registration Dossier

Administrative data

Link to relevant study record(s)

Description of key information

Flammability characterization, ignition sensitivity and thermal stability studies were conducted by using methods BS EN 50281-2-1: 1999 Part 2-1: Test methods of determining minimum ignition temperatures; Method A (Dust layer on a heater surface at a constant temperature) and Method B (Dust cloud in a furnace at a constant temperature).  The study was conducted in compliance with the principles of Good Laboratory Practice.

Key value for chemical safety assessment

non flammable

Additional information

The substance is non flammable. The majority of organic materials are combustible. For solids, the physical form (e.g. particle size and shape, moisture content) can affect the flammability characteristics of dusts. A safety margin should be applied when applying data from small-scale testing to full plant scale for the purpose of assessing operational hazards which may arise in a plant.

Justification for classification or non-classification

Due to the organic nature of the substance, the screening test showed that it is possible to ignite the substance when exposed to a flame. However, the Minimum Ignition Temperature for a dust cloud was measured at 300°C, and no ignition was observed in the Layer (5 mm) Ignition test while subjecting the sample to heating on a hot plate for 5 minutes or longer. Additionally, no exothermic activity (self-heating) was observed up to and including 400°C. Therefore, the test substance is not flammable and is not classified according to EU Directive 67/548/EEC and EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.