What can you use to build a container if the original is not available?

In the context of packaging and container design, a Special Packaging Instruction (SPI) drawing serves as a vital resource when the original container specifications are not accessible. An SPI drawing provides specific guidelines and requirements tailored for the packaging of particular items. This ensures that the integrity, safety, and regulatory compliance of the packaging are maintained even when starting from a different design.

Using an SPI drawing allows for the accurate replication or adaptation of a container that meets the necessary standards for protection and functionality, especially for sensitive items or materials. This helps in ensuring that any replacements or alternatives made to the container still fulfill the same operational and protective purposes as the original design would have.

Other options, while potentially useful in various contexts, do not focus specifically on the requirements for packaging sensitive materials or adhering to safety regulations, which is a critical aspect when substituting a container.