Capital Letter N indicates the packaging material is which?

• A. Aluminum
• B. Plywood
• C. Metal
• D. Steel

Answer: (C)

The main idea here is that certain markings on packaging indicate what the outer container is made from. A capital N on the packaging mark signals that the material is metal. This helps inspectors and handlers quickly assess whether the packaging meets the appropriate standards for metal containers, including strength, leak resistance, and suitability for the contents. The code doesn’t specify a particular metal like aluminum or steel; it designates the general category of metal. That’s why the best interpretation is metal, rather than naming a specific metal or a non-metal like plywood.