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BS 6001-2:1993

BS 6001-2:1993

$142.49

Sampling procedures for inspection by attributes – Specification for sampling plans indexed by limiting quality (LQ) for isolated lot inspection

Published By Publication Date Number of Pages
BSI 1993 30
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This part of ISO 2859 establishes LQ sampling plans and procedures for inspection by attributes compatible with ISO 2859‑1 that can be used when the switching rules given in ISO 2859‑1 are not applied, for example, when lots are of an isolated nature.

The plans in this part of ISO 2859 are indexed by a preferred series of limiting qualities (LQ) with a consumer’s risk usually below 10 %, but always below 13 %. This method of indexing permits the “ad-hoc” procedure1 mentioned in sub-clause 12.6 of ISO 2859‑1 to be implemented as a standard procedure.

NOTE The plans in ISO 2859‑1 are indexed by a preferred series of AQL values and inspection levels. During the inspection of a continuing series of lots the application of switching rules helps to ensure that the process average in that series of lots is kept below the specified AQL. Limiting quality does not have the same direct relationship with the process average (see 3.5.1).

Plans that can be used when the switching rules of BS 6001-1 are not applied, e.g. for “isolated lots”. Preferred series of limiting qualities (LQ) with consumer’s risk usually below 10%. Rationalizes the “ad hoc” procedure mentioned in 11.6 of BS 6001-1.

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BS 6001-2:1993
$142.49