BS ISO 28598-2:2017

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
4 Selection from among sampling systems by attributes
5 Lot quality
6 Limits for other party's risk
7 Inspecting party's risk
8 Basic data
9 Catalogue of permissible sampling plans
10 Choosing supplier's single sampling plans
11 Choosing customer's single sampling plans
12 Sampling inspection for NQL = 0
Annex A (normative) - Tables for acceptance single
        sampling plans by attributes
Annex B (informative) - Examples of application of
        catalogued permissible sampling plans
Annex C (informative) - Theoretical justification
Bibliography

Gives attributes sampling procedures and single sampling plans for successive independent inspections of the same lot conducted by the supplier, customer and/or a third party.

This part of ISO28598 provides attributes sampling procedures and single sampling plans for successive independent inspections of the same lot conducted by the supplier, customer and/or a third party.

This part of ISO28598 addresses:

• supplier inspection (final inspection, product certification upon supplier\'s request);

• customer inspection (incoming inspection, surveillance, acceptance sampling);

• third party inspection.

This part of ISO28598 may also be applicable when only one inspection is needed.

A catalogue of single sampling plans is given, indexed by the normative quality limits (NQLs).

This part of ISO28598 provides sampling procedures for:

• finished product;

• components and discrete items;

• operations;

• discrete items and the processes that produce them;

• data and records.

Attributes sampling procedures are provided for inspection of an isolated lot or a continuing series of lots of a discrete product. These procedures are applicable when a normative quality limit (NQL) is given and expressed in terms of percent nonconforming or nonconformities per 100items.

This part of ISO28598 provides a co-ordinated system of supplier, customer and third party acceptance sampling procedures. It is also applicable to the case where a supplier individually, or on agreement with a customer, in a contract, specifies a lot quality criterion expressed in terms of an NQL. In either case, it provides a coherent methodology for designating lots as satisfactory or unsatisfactory for shipment and proposed use.