🔍 Key Concepts
• International Maritime Dangerous Goods (IMDG) Code structure
• The list of dangerous goods classes and divisions at the front of Volume 1
• Difference between main classes and sub-divisions (e.g., 1.1, 1.2, etc.)
💭 Think About
• When you open the IMDG Code, how are the dangerous goods first grouped before any sub‑divisions are listed?
• Are the explosives subcategories (like 1.1, 1.2, 1.3) counted as separate main classes or as divisions within a single main class?
• Think of common examples: explosives, gases, flammable liquids, flammable solids, oxidizing substances/organic peroxides, toxic/infectious, radioactive, corrosive, miscellaneous. How many top‑level groups is that?
✅ Before You Answer
• Verify how many top-level class numbers (without decimal points) the IMDG Code uses (e.g., 1, 2, 3, …).
• Confirm that divisions (like 1.1, 1.2) are not counted as separate main classes.
• Count only the primary class numbers listed in the IMDG Code’s class overview table.