ADR Courses

Class 4 - Flammable Solids

• Other Flammables: Flammable Solids will burn easily, and may create great heat and sometimes, toxic fumes. Some need to be transported under refrigeration (SADT)
• Spontaneously Combustible: Ignite immediately with oxygen in the air; no ignition sources are needed.
• Dangerous when wet: Produce flammable gases when in contact with water. It is the heat of the reaction that generally ignites the gas.

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