Which shipping paper entry description is in the correct order?

• A. Hydrogen Bromide, Non-flammable gas. UN 1048
• B. Hydrogen Bromide, UN 1048. Non-flammable gas
• C. Non-flammable gas, Hydrogen Bromide. UN 1048
• D. UN 1048, Hydrogen Bromide, Non-flammable gas

Answer: (A)

Shipping papers list information in a fixed order: the proper shipping name, then the hazard class or description, and finally the UN identification number. In this entry, Hydrogen Bromide is the proper shipping name, Non-flammable gas describes the hazard class (gas, non-flammable), and UN 1048 is the UN number that uniquely identifies the substance. This sequence—name, hazard, UN number—matches the standard format, making it the correct entry. If the UN number were placed before the hazard description, or if the order started with the hazard or the UN number, it would not follow the required format and could cause confusion for responders.