d) Propriétés physiques : conditions de stockage dans lesquelles la substance est maintenue, telles que l'état (solide, liquide, gazeux), la granularité (poudre, pellets, etc.), la pression, la température, etc.
(d) Physical properties : Storage conditions under which the substance is maintained, such as state (solid, liquid, gas), granularity (powder, pellets, etc.), pressure, temperature, etc.