Which of the following materials must trained corrosion control personnel handle and dispose of?

Trained corrosion control personnel must handle and dispose of hazardous materials because these substances pose significant risks to health and safety if not managed properly. Hazardous materials can include solvents, chemicals used in cleaning processes, or substances that may result in corrosion or structural damage if improperly handled. Therefore, personnel are required to follow specific protocols and safety regulations for the handling, storage, and disposal of these materials to mitigate potential hazards.

In contrast, the other options primarily pertain to materials that are either safe to handle or do not require specialized training for disposal. Non-hazardous waste and basic cleaning supplies generally do not pose significant health risks and can often be disposed of without strict regulatory requirements. Electrical components, while important in the context of electronics, are not classified as hazardous materials and typically do not require the same level of specialized training and regulatory compliance for handling and disposal.