Sample

Units are not picked because they look good or bad, so the sample can stand for the batch. MDCG 2022-3 uses the term for notified body verification of manufactured class D IVDs.

One or more units of product, either components or finished devices, drawn from a batch without regard to the quality of the units

MDCG 2022-3 Rev.1, Section 3, Definitions (3.6; source: EN 13975:2003)