Which code corresponds to multi-wall, water resistant paper bags?

• A. 6HB1
• B. 6HA2
• C. 5M2
• D. 5H4

Answer: (C)

In this coding system, packaging codes are read as a combination of material, wall construction, and special features like moisture resistance. A bag made from paper with multiple layers and a built-in water barrier is represented by the code 5M2. Here, the 5 identifies paper-based packaging, the M denotes multi-wall construction, and the 2 specifies the water-resistant variant within this family. The other codes point to different materials or different wall constructions, so they don’t describe multi-wall, water resistant paper bags. Therefore, 5M2 is the correct code.