BS 6002-1:2007
Sampling procedures for inspection by variables - Guide to single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL

Standard No.

BS 6002-1:2007

Release Date

2007

Published By

British Standards Institution (BSI)

Status

Be replaced 2013-09

Replace By

BS ISO 3951-1:2013

Latest

BS ISO 3951-1:2013

Scope

This British Standard describes an acceptance sampling system 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; b) where only a single quality characteristic x of these products is taken into consideration, which must be measurable on a continuous scale; c) where the measurement error is negligible, i.e. with a standard deviation no more than 10% of the process standard deviation; d) where production is stable (under statistical control) and the quality characteristic x is distributed according to a normal distribution or a close approximation to the normal distribution; e) where a contract or standard defines a lower specification limit L, an upper specification limit U, or both; an item is qualified as conforming if and only if its measured quality characteristic x satisfies the appropriate one of the following inequalities: 1) x W L (i.e. the lower specification limit is not violated); 2) x u U (i.e. the upper specification limit is not violated); 3) x W L and x u U (i.e. neither the lower nor the upper specification limit is violated). Inequalities 1) and 2) are called cases with a single specification limit, and 3) a case with double specification limits. Where double specification limits apply, it is assumed in this British Standard that conformance to both specification limits is equally important to the integrity of the product; in such cases, it is appropriate to apply a single AQL to the combined percentage of product outside the two specification limits. This is referred to as combined control.

BS 6002-1:2007 history

• 2013 BS ISO 3951-1:2013 Sampling procedures for inspection by variables. Specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL
• 2007 BS 6002-1:2007 Sampling procedures for inspection by variables - Guide to single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL
• 1993 BS 6002-1:1993 Sampling procedures for inspection by variables - Specification for single sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection