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BS ISO 28598-1:2017

$167.15

Acceptance sampling procedures based on the allocation of priorities principle (APP) – Guidelines for the APP approach

Published By Publication Date Number of Pages
BSI 2017 38
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This part of ISO 28598 provides guidelines specifying the organizational principles of acceptance sampling in situations where the contract or the legislation provides for successive inspection to be carried out by different parties: the supplier, the customer and/or a third party.

These guidelines are designed for inspection of populations of any product supplied or delivered in discrete items in lots. They are applicable to

  • supplier inspection (final inspection, product certification upon supplier’s request),

  • customer inspection (incoming inspection, audit inspection, acceptance sampling),

  • third-party inspection (certification of product, inspection and supervision for observance of International Standard requirements, quality inspection carried out at the supplier, and/or customer, request),

where the quality levels and the lot acceptability criteria are specified unilaterally by the supplier or contractually by the supplier and the customer.

These guidelines are also applicable to situations when only one sampling inspection is actually needed.

NOTE Single sampling APP plans by attributes are given in ISO 28598‑2 .

The guidelines provided by this part of ISO 28598 may be applied in developing standards on acceptance sampling for standard inspection models, specific items or quality levels, as well as in developing contracts, specifications and instructions. In contractual use of the APP, the parties concerned should acknowledge in the contract that they approve of its principles (also by referring to the present guidelines). The parties may also provide for the use of the APP in disputes and arbitration.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
9 Introduction
11 1 Scope
2 Normative references
12 3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
13 3.2 Symbols and abbreviated terms
14 4 General overview of quality
4.1 Quality measures
4.2 Role of information on quality assurance
5 Selection of a sampling system
5.1 Relations between sampling systems
15 5.2 Continuing series of lots
5.3 Separate lots
5.4 Features of the ISO 28598 sampling system
16 6 Requirements for the quality of lots and relationships between the parties
6.1 Lot quality requirements
6.1.1 The form of lot quality requirements
6.1.2 Satisfactory and unsatisfactory lots
6.1.3 Objectives
6.2 Relationships of the parties concerning lot quality
6.3 Preventative measures
17 7 Objective of the inspection conducted by supplier, customer and third party
7.1 General
7.2 Objective of the inspection conducted by the supplier
7.3 Objective of the inspection conducted by the customer
7.4 Objective of the inspection conducted by a third party
18 8 Requirements of the system of sampling inspection conducted by supplier, customer or third party
8.1 Common system requirements
8.2 Reproducibility of decisions made by sampling inspection results
8.3 System flexibility and the possibility to accommodate individual capabilities and interests of the inspecting parties
8.4 Cost efficiency of inspection
19 8.5 Types of information used when organizing inspection and in decision making
9 Prior information
9.1 Types of prior information
9.2 APP approach for considering prior information
9.3 Economic aspects of prior information
20 10 Choosing sampling plans and schemes
10.1 General
10.2 Characteristics of sampling plans and schemes
10.3 Rights of the parties in choosing sampling plans and schemes
10.4 Permissible sampling plans and schemes
10.4.1 General
10.4.2 Constraints of type I
21 10.4.3 Constraints of type II
10.5 Setting the constraints for risks and confidence levels
10.5.1 Constraints of type I
22 10.5.2 Constraints of type II
10.6 Decision-making rules
10.6.1 Decision-making with respect to supplier and customer inspection
23 10.6.2 Constraints of type I
10.6.3 Constraints of type II
11 Re-submission of previously non-accepted lots on supplier inspection
25 Annex A (informative) Allocation of priorities principle
30 Annex B (informative) Recommendations for setting customer’s risks on supplier inspection
36 Bibliography
BS ISO 28598-1:2017
$167.15