If the hazard class is unknown and being transported for further testing what can the shipper do?

• A. Leave it unnamed until known
• B. Designate a tentative class, proper shipping name, and UN# under the sample designation
• C. Assign Class One and mark as dangerous
• D. Delay shipment until classification is complete

Answer: (B)

When the hazard class isn’t known and the material is being shipped for testing, you can use a sample designation with a tentative classification. This means assigning a provisional class, a proper shipping name, and a UN number that describe the item for transport, while clearly indicating that the classification is not final. This gives carriers and handlers a concrete, standardized description to work with, so packaging, labeling, and safety procedures are appropriate during transit and the shipment remains compliant. Once testing is complete and the final hazard classification is determined, the shipping details can be updated accordingly.

Leaving the shipment unnamed would lack the required identification for safe handling; delaying shipment defeats the purpose of testing; and assigning a definite or extreme class (like Class One) would misrepresent the material and create unnecessary risk.