ISO 3951-2:2006 PDF

Scope: This part of ISO 3951 specifies an acceptance sampling system of single sampling plans for inspection by variables, indexed in terms of the Acceptance Quality Limit (AQL). This part of ISO 3951 is primarily designed for use under the following conditions: a) where the inspection procedure is to be applied to a continuing series of lots of discrete products all supplied by one producer using one production process. If there are different producers or production processes, apply this part of ISO 3951 to each one separately; b) where the quality characteristics of the items of product are measurable on a continuous scale; c) where the measurement error is negligible (i.e. with a standard deviation no more than 10 % of the corresponding process standard deviation); d) where production is stable (under statistical control) and the quality characteristics are distributed, at least to a close approximation, according to normal distributions; e) where, in the case of multiple quality characteristics, the characteristics are independent of one another, at least approximately; f) where a contract or standard defines an upper specification limit U, a lower specification limit L, or both on each of the quality characteristics.

ISO 3951-2:2006 Referenced Document

ISO 2859-1:1999 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3534-1 Statistics — Vocabulary and symbols — Part 1: General statistical terms and terms used in probability
ISO 3534-2 Statistics - Vocabulary and symbols - Part 2: Applied statistics*， 2006-09-01 Update
ISO 9000 Quality management systems - Fundamentals and vocabulary [French version]*， 2015-09-15 Update

2016 ISO 3951-2:2013/Amd 1:2016 Sampling procedures for inspection by variables — Part 2: General specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent quality characteristics
2013 ISO 3951-2:2013 Sampling procedures for inspection by variables. Part 2: General specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent quality characteristics
2009 ISO 3951-2:2006/Amd 1:2009 Sampling procedures for inspection by variables - Part 2: General specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent quality characteristics; Amendment 1
2006 ISO 3951-2:2006 Sampling procedures for inspection by variables - Part 2: General specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent quality characteristics