Sampling procedures for inspection by attributes Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
Standards Australia
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Specifies an acceptance sampling system for inspection by attributes. It is indexed in terms of the acceptance quality limit (AQL). This Standard is identical with and reproduced from ISO 2859-1:1999.
RECONFIRMATION NOTICE
Technical Committee QR-008 has reviewed the content of this publication and in
accordance with Standards Australia procedures for reconfirmation, it has been
determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the
original date of publication. Users are advised to ensure that they are using the latest
versions of such documents as appropriate, unless advised otherwise in this
Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for
reconfirmation on 27 June 2016.
The following are represented on Technical Committee QR-008:
Association of Accredited Certification Bodies
Australian Industry Group
Australian Institute of Petroleum
Australian Organisation for Quality
Australian Prudential Regulation Authority
Consumers Federation of Australia
Energy Networks Association
Engineers Australia
Griffith University
Housing NSW
ISACA
Joint Accreditation System of Australia and New Zealand
Master Builders Australia
Materials Australia
New Zealand Organisation for Quality
Royal Australian Chemical Institute
University of Canterbury New Zealand
University of Technology, Sydney
University of Wollongong
1.1 This part of ISO 2859 specifies an acceptance sampling system for inspection by attributes. It is indexed in terms of the acceptance quality limit (AQL).
Its purpose is to induce a supplier through the economic and psychological pressure of lot non-acceptance to maintain a process average at least as good as the specified acceptance quality limit, while at the same time providing an upper
limit for the risk to the consumer of accepting the occasional poor lot.
Sampling schemes designated in this part of ISO 2859 are applicable, but not limited, to inspection of
- end items,
- components and raw materials,
- operations,
- materials in process,
- supplies in storage,
- maintenance operations,
- data or records, and
- administrative procedures.
1.2 These schemes are intended primarily to be used for a continuing series of lots, that is, a series long enough to allow the switching rules (9.3) to be applied. These rules provide:
a) a protection to the consumer (by means of a switch to tightened inspection or discontinuation of sampling inspection) should a deterioration in quality be detected;
b) an incentive (at the discretion of the responsible authority) to reduce inspection costs (by means of a switch to reduced inspection) should consistently good quality be achieved.
Sampling plans in this part of ISO 2859 may also be used for the inspection of lots in isolation but, in this case the user is strongly advised to consult the operating characteristic curves to find a plan that will yield the desired protection (see 12.6). In that case, the user is also referred to the sampling plans indexed by limiting quality (LQ) given in ISO 2859-2.
| Document Type | Standard |
| Status | Current |
| Publisher | Standards Australia |
| ProductNote | Reconfirmed 22/07/2016. This standard has been reconfirmed in Australia in 2016 and remains current in New Zealand. Reconfirmation Notice 22/07/2016 |
| Committee | QR-008 |
| Supersedes |
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