What type of packaging is required for flammable solids?

For flammable solids, the correct packaging must be designed to prevent ignition and control the release of flammable vapors. This is critical because flammable solids can ignite spontaneously under certain conditions or emit combustible vapors that pose a risk during transportation. Proper packaging helps to mitigate these hazards, ensuring that the materials remain contained and do not pose a threat to safety during handling and transport. Specialized packaging materials may include fire-resistant composites or rigid containers that effectively seal the contents and limit oxygen exposure, reducing the potential for combustion.

In contrast, standard cardboard packaging may not provide the necessary protection against ignition, as it is susceptible to catching fire. Plastic packaging might lack the structural integrity needed to safely contain flammable solids, and the absence of special requirements could lead to safety hazards. Metal containers with ventilation holes do not meet the requirements either, as ventilation can actually allow flammable vapors to escape, increasing the risk of ignition. Thus, the requirement for packaging that prevents ignition and controls vapor release is key for ensuring safe transportation of flammable solids.