What type of container is used as a secondary container for packing specimens?

The use of a plastic bag with absorbent material as a secondary container for packing specimens is essential for ensuring safe transport and handling of biological samples. This type of container effectively prevents leakage and spillage of specimens, which is critical in a laboratory setting where specimens may contain infectious agents or hazardous materials. The absorbent material within the bag can soak up any potential spills, providing an additional layer of safety for both laboratory personnel and the environment.

The plastic bag is designed to be airtight and leak-proof, which helps maintain the integrity of the sample and prevents contamination. Additionally, using a secondary container is a standard practice in laboratory protocols, adhering to safety regulations and guidelines for the transport of hazardous materials.

In contrast, while glass vials can be effective for specimen containment, they do not offer the same protective qualities as the plastic bag with absorbent material when it comes to preventing leakage during transport. Cardboard boxes may be used for outer packaging, but they do not provide the direct protective features needed for the specimens themselves. Metal canisters, although sturdy, may not be suitable for all types of biological specimens and can add unnecessary weight and complexity to the shipping process. Thus, a plastic bag with absorbent material is the optimal choice for a secondary container in laboratory