When preparing dangerous goods for transportation, which marking is NOT required on the package?

The marking that is not required on the package when preparing dangerous goods for transportation is the amount of dry ice in kilograms. While the use of dry ice as a refrigerant for the transportation of certain materials is common, regulations typically do not necessitate that the specific amount in kilograms be marked on the exterior of the package.

In contrast, certain markings are essential for ensuring safety and compliance during the transport of dangerous goods. The UN number is critical as it identifies hazardous substances and provides essential information for emergency response in the event of an incident. The date that samples are shipped may also be important for tracking purposes and ensuring the timely processing of samples. Similarly, indicating the quantity of the samples in grams is necessary for understanding the weight and handling of the materials being transported. These requirements help in managing risks associated with the hazardous nature of the goods being shipped, ensuring safety for handlers and regulatory compliance.