Should I record an item as a “fragment” of a given material type, or under the “other” category?

A fragment is a piece of a larger item that can no longer be identified, or that represents less than 50% the size of the original item. An “other” item would be something that is identifiable but not listed on the datasheet, for example a metal car part. It’s helpful to comment in the notes section of the datasheet on what types of “other” items are found at your survey site.