Explain the concept of 'hazard classification' for explosives.

Hazard classification is essential in understanding and managing the risks associated with explosives. It specifically involves the systematic categorization of explosives based on their sensitivity—how likely they are to initiate and the impact they can have upon detonation or deflagration. This classification considers various factors such as the chemical properties of the explosives, their physical characteristics, and the potential hazards they pose during handling, storage, and transport.

By classifying explosives based on sensitivity and risks, safety professionals can implement appropriate safety measures, establish proper handling protocols, and ensure compliance with regulations. It helps in determining the level of training required for personnel handling these materials and informs emergency response strategies in the event of unintended detonations.

The other options misrepresent the purpose of hazard classification. While availability and packaging are relevant in logistics and safety management, they do not directly pertain to the core principles of hazard classification. A rating system for effectiveness does not address the critical aspects of risk management related to explosive materials. Hence, the classification that embodies sensitivity and risk is central to explosives safety management.