Final answer:
The Bq and ¼i limits for SCO-I and SCO-II categories are based on maximum permissible levels of surface radioactivity for materials in shipment. One Ci is equal to 3.7 x 10¹⁰ Bq, and radioisotopes are often measured in mCi/mL.
Step-by-step explanation:
To determine the Becquerel (Bq) and microcurie (µCi) limits for Surface Contaminated Objects (SCO-I and SCO-II) concerning radioactive material (RAM) packaging for shipment, it is essential to understand the units of radioactivity. One curie (Ci), a unit of radioactivity, is defined as 3.7 x 10¹⁰ disintegrations per second, which is also equivalent to 3.7 x 10¹⁰ Becquerel. Often, the radioisotope used for medical purposes is labeled in millicurie per milliliter (mCi/mL), which allows for the calculation of the volume needed for the desired dose.
A Geiger counter can be used to quantify the rate of ionizing radiation and determine whether the contamination on the surface of a package meets the specific Bq and µCi limits set for SCO-I or SCO-II categories. The limits for these categories would specify the maximum level of radioactivity permitted on the surfaces of materials being shipped. It is critical for safety and regulatory compliance to ensure that these limits are not exceeded during the packaging and transportation of RAM.