How are subdivisions of dangerous goods expressed numerically?

• A. Single-digit numbers
• B. 2-digit numbers
• C. 3-digit numbers
• D. Percentage values

Answer: (B)

Subdivisions of dangerous goods are expressed using 2-digit numbers, which align with the UN (United Nations) classification system for hazardous materials. This numerical system categorizes the goods based on their potential risk during transport, allowing for efficient identification and management. The 2-digit codes serve as a simplified way to convey essential information about the hazards associated with these materials, including their nature and the level of risk they pose.

This approach improves safety by ensuring that those handling or transporting dangerous goods can quickly recognize the appropriate precautions and emergency measures required. The use of a standardized numeric format helps maintain consistency and clarity across the global shipping industry, facilitating clear communication among all parties involved in the transport of hazardous materials.