Which hazard label must accompany the Cryogenic Liquids label on packaging?

• A. Non-flammable gas (Division 2.2) hazard label
• B. Cryogenic Liquids
• C. Keep Away From Heat
• D. Radioactive Material, Excepted Package

Answer: (A)

The key idea is that cryogenic liquids carry two distinct hazards: extreme cold and the behavior of the gas that forms when released. The Cryogenic Liquids label communicates the ultra-low temperature hazard, while the accompanying hazard label specifies the gas’s flammability category. For contents that are non-flammable gases at ambient conditions (such as nitrogen, argon, or helium), the correct accompanying label is Non-flammable gas (Division 2.2). This combination tells handlers: beware of the extreme cold, and note that the released gas is non-flammable. The other options don’t add the specific chemical hazard information the packaging requires—Keep Away From Heat is a precaution, not a hazard class label; and the Radioactive Material label would only apply if the contents were radioactive.