It will be classified according to Annex II Table 2.
Reason:
Article 2 (12) defines fluids as “gases, liquids and vapours in pure phase as well as mixtures thereof, fluids may contain a suspension of solids” (See PED Guideline A-24). Article 13 in connection with Article 4 only mentions gases, liquids and vapours for classification purposes.
Note:
The characteristics of the solid should be considered as part of the hazard analysis and do not influence the classification of the vessel.