NOTE : The criteria are based on the self-ignition temperature of charcoal, which is °C for a sample cube of 27m Substances and mixtures with a temperature of spontaneous combustion higher than 50°C for a volume of m should not be assigned to this hazard class. ###>2 : Les critères sont basés sur la température d'auto-inflammabilité du charbon, qui est de 50 °C pour un échantillon de 27m3.