Boundary Sample is also called Limit Sample. Limit samples are used by buyers and sellers to determine the Quality of an unquantifiable (or difficult to quantify) quality. Buyer and seller will finally determine the quality requirements by a specific object called limit sample which are confirmed by two parties.
The quality characteristics of some products can not be described in words, data or other ways, such as: gloss, roughness, rough edges, scratches on the workpiece. In order to avoid dispute, it is necessary for both sides to define a physical limit sample as a basis for judging whether the delivery quality is qualified. After comparing the delivery quality with the limit sample, it can be accepted within this standard; On the contrary, it is rejected if it exceeds the limit sample standard. Zamak perfume caps manufacturing must need limit samples to ensure each piece's quality, especially to determine their surface treatment quality.
