Hazardous Material Label to UN Number Converter Hazardous Material Label to UN Number Converter Input Result Select Hazard Class: Explosives (1–5) Gases (2) Flammable Liquids (3) Combustible Solids (4) Oxidizers / Organic Peroxides (5) Toxic / Infectious Substances (6) Radioactive Materials (7) Corrosive Substances (8) Miscellaneous Dangerous Goods (9) Description Keywords: Subdivision (if applicable): Find Matching UN Numbers Select a hazard class and click Find. Download as PDF Previous Next