Which statement is true about UN 3373 labeling?

Which statement is true about UN 3373 labeling?

• A. It signified a biological substance Category B
• B. It is used exclusively for Dry Ice shipments
• C. It is optional for Category B
• D. It never appears with a proper shipping name

Answer: (A)

UN 3373 labeling identifies a Biological substance, Category B. This UN number is specifically assigned to shipments of biological substances that are not Category A infectious substances, signaling the level of risk and guiding the required packaging, labeling, and handling. It is not tied to Dry Ice shipments, which use a different UN number and labeling. For Category B shipments, this labeling is required, not optional, and it is typically used together with the proper shipping name on the outer packaging, such as “Biological substance, Category B,” along with the UN 3373 designation.

UN 3373 labeling identifies a Biological substance, Category B. This UN number is specifically assigned to shipments of biological substances that are not Category A infectious substances, signaling the level of risk and guiding the required packaging, labeling, and handling. It is not tied to Dry Ice shipments, which use a different UN number and labeling. For Category B shipments, this labeling is required, not optional, and it is typically used together with the proper shipping name on the outer packaging, such as “Biological substance, Category B,” along with the UN 3373 designation.