What defines work order residue?

Work order residue refers specifically to expendable items left over from maintenance work. This definition aligns closely with the nature of work orders, which are typically associated with tasks involving the use of materials and supplies to complete maintenance activities. Once these tasks are executed, any leftover materials that are not needed for immediate use become classified as work order residue.

In this context, the term "expendable" indicates that these items are not intended for long-term use and can be disposed of or used in future projects, depending on the organization’s policies. These remnants are crucial to inventory management as they represent resources that may still hold value even if they are not used as originally planned.

The other options discuss different categories of materials or supplies that do not fit the specific description of work order residue. For instance, items used for replacement during maintenance pertains to necessary components rather than leftovers. Materials returned from customer complaints refer to issues related to customer service rather than leftover maintenance supplies, and supplies stored for future projects do not specifically relate to what remains after maintenance work has been completed.