A radioactive Yellow II label is applied to packages with a maximum surface dose rate of:

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A radioactive Yellow II label is specifically applied to packages that have a maximum surface dose rate of 50 millirem per hour (mR/hr). This labeling is part of the IAEA regulations and reflects the safety measures needed for transporting radioactive materials. The Yellow II label indicates that while the radiation levels are controlled, the package still emits a dose rate that is significant enough to require attention and caution.

The threshold established for the Yellow II labeling ensures that handlers, transporters, and those in proximity to the package are aware of the potential exposure risk. When a package emits a surface dose rate of 50 mR/hr, it suggests that while the radiation is above that of a Yellow I package (which would be less than 50 mR/hr), it is below the level that would require a Yellow III label, which indicates a higher exposure risk.

Understanding the specific dose rates associated with these labels is crucial for safe transport and handling of radioactive materials, ensuring compliance with regulatory standards and minimizing health risks.

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