Which of the following materials is NOT typically transported in industrial containers?

• A. Contaminated clothing
• B. Natural uranium
• C. Laboratory samples
• D. Smoke detectors

Answer: (B)

Natural uranium is indeed not typically transported in industrial containers that would be used for hazardous materials. Instead, it is often transported in specialized containers designed to conform to regulatory standards for radioactive materials, given the specific safety and security concerns associated with its handling.

Each of the other options—contaminated clothing, laboratory samples, and smoke detectors—are materials that can be handled in industrial containers designed for hazardous or regulated waste. Contaminated clothing may be placed in containers designed for hazardous waste to prevent exposure to contaminants. Laboratory samples can also be packed in industrial containers that meet safety regulations, ensuring the integrity of the samples and safety during transport. Smoke detectors often contain small amounts of radioactive material (like americium-241), but they are packaged in a more general manner within the industrial container framework, typically in compliance with DOT regulations for hazardous materials.

The distinction lies in the transportation requirements and container specifications driven by the nature of the materials; natural uranium’s unique status necessitates specific and specialized containment methods beyond standard industrial containers.