TS 2756-2

TS 2756-2 is a standard in the attribute-inspection sampling family that deals with sampling plans indexed by limiting quality (LQ) for isolated lot inspection. Its focus is the decision logic used when individual lots are evaluated on their own, rather than as part of a continuing production stream.

Limiting quality and the isolated-lot model

In general technical terms, limiting quality describes a level of nonconformingness at which a lot is considered unacceptably poor in practical use. The isolated-lot model applies when lots are separate and not drawn from a closely linked sequence of production. That distinction matters because the statistical balance of risk and the way sampling plans are used are different from those for ongoing, consecutive lot inspection.

Unlike sampling plans based on acceptable quality level (AQL), this standard addresses plans indexed by limiting quality. In practical terms, that means it provides a statistical framework for making accept/reject decisions from the sample taken from a single lot. It belongs to the broader TS 2756-0 / ISO 2859-0 family of general concepts and terminology for attribute sampling.

This is the 1995 Turkish adoption and it has been withdrawn, but it remains a useful technical reference for understanding how quality-based sampling logic is organised for inspection and testing.