boundary sample; limit sample; minimum acceptance sample
Technical term used in quality control and manufacturing to define the worst acceptable quality of a product. It serves as a reference for inspection and acceptance decisions.
We judge product acceptance based on the boundary sample.
If there are more scratches than this limit sample, it is rejected.
Compound of 限度 (limit) and 見本 (sample). The exact historical derivation is uncertain, but the term is conventionally used in industrial quality control contexts.