ASNT Industrial Radiography Radiation Safety Practice Test

What condition must be met for a shipping container to be marked with a Yellow II label?

1. Surface reading less than 200 mR/h

2. Surface reading less than or equal to 50 mR/h

3. Transport index greater than 1

4. Surface reading less than 500 mR/h

The correct answer is: Surface reading less than or equal to 50 mR/h

To qualify for marking with a Yellow II label, a shipping container must adhere to specific criteria related to radiation exposure levels. The key factor is the surface radiation reading, which must be less than or equal to 50 mR/h. This designation is critical for conveying safe transport conditions and ensuring that individuals handling the material are not exposed to excessive radiation. The Yellow II label serves to inform handlers and carriers of the potential radiation hazard associated with the contents of the container. By restricting the surface reading to 50 mR/h or less, it ensures that appropriate safety measures are in place, balancing the need for radioactive material transport with the protection of public health and safety. This threshold is designed to minimize the risk of radiation exposure to persons near the package while still allowing transportation of materials that require monitoring and safety provisions. The specificity of this reading reflects regulatory standards aimed at maintaining safety during the transportation of radioactive materials.