ISO 12308:2017

Plain bearings - Quality assurance of sample types - Definitions, applications and testing

ISO 12308:2017 defines the types of plain bearing samples exchanged between purchaser and manufacturer. In the field of internal combustion engines and other series production, it is necessary to work with different types of samples depending on the purpose. Types of samples are as follows. - Samples used for tests and examinations which are carried out in the experimental stage and pilot lot stage. These include fitting samples, prototype samples and intermediate samples. - Samples used to prove that the quality is in accordance with the quality requirements (dimensions, material and performance specification). These include initial samples and reference samples and, if necessary, intermediate samples. NOTE See ISO 3534 (all parts) and ISO 9000 for further information. - Samples which give selective information about particular quality characteristics of a plain bearing, relating to their conformity with the specifications. These involve reference and characteristic modification samples.

Paliers lisses — Assurance de la qualité des types d'échantillons — Définitions, utilisation et essais

Drsni ležaji - Zagotavljanje kakovosti vzorčnih vrst - Definicije, uporaba in preskušanje

General Information

• Status: Published
• Publication Date: 26-Apr-2017
• ICS: 21.100.10 - Plain bearings
• Technical Committee: ISO/TC 123/SC 5 - Quality analysis and assurance
• Drafting Committee: ISO/TC 123/SC 5 - Quality analysis and assurance
• Current Stage: 9060 - Close of review
• Completion Date: 02-Dec-2027
• Ref Project: SIST ISO 12308:2020 - Plain bearings - Quality assurance of sample types - Definitions, applications and testing

Relations

• Revises: ISO 12308:1994 - Plain bearings - Quality assurance - Sample types - Definitions, applications and testing
• Effective Date: 04-Nov-2015

Overview

ISO 12308:2017 - Plain bearings: Quality assurance of sample types - defines the types of plain bearing sample types exchanged between purchaser and manufacturer and specifies their intended applications, manufacturing process, testing and documentation. It is focused on series production contexts such as internal combustion engines where different sample types (prototype, initial, reference, etc.) are needed for development, approval and ongoing quality control.

Key topics and requirements

• Defined sample types (symbols S1–S6):
  • S1 - Fitting sample: for fitting tests (dimensions only).
  • S2 - Prototype sample: for functional tests and performance development (complete quality testing; quantity typically ≤ 200).
  • S3 - Intermediate sample: partially produced using series processes; used in pilot lots (quantity typically ≤ 20); later replaced by initial samples.
  • S4 - Initial sample: produced under series production conditions to prove conformance (quality characteristics per ISO 12301; quantity typically ≤ 20).
  • S5 - Reference sample: represents desired values for quality characteristics; supplied to purchaser for control tests.
  • S6 - Characteristic modification sample: produced after a specification modification; only affected quality characteristics are tested (quantity typically ≤ 20).
• Inspection and test reports: Manufacturer must supply a completed test report with sample data on dimensions, material and/or performance. The purchaser should share inspection results; test records are retained as agreed.
• Marking: All sample deliveries must be clearly marked as samples by agreement between manufacturer and purchaser.
• Designation: Samples can be designated using the ISO 12308 code (e.g., “Sample ISO 12308 - S4” for an initial sample).

Practical applications

• Use during design validation, pilot production, and production release of plain bearings for engines, gearboxes and other mass-produced machinery.
• Establishing specifications (dimensions, materials, performance) and demonstrating supplier capability before mass production.
• Routine supplier-to-purchaser exchanges for receiving inspection, reference comparisons and targeted re-testing after design changes.

Who should use this standard

• Plain bearing manufacturers and suppliers
• OEMs (automotive, engine and gearbox manufacturers)
• Quality engineers, inspection labs and purchasing departments
• Product and process development teams involved in series production

Related standards

• ISO 12301 - Plain bearings: Quality control techniques and inspection of geometrical and material quality characteristics (referenced for testing requirements).
• ISO 9000 and ISO 3534 - For general quality management and statistical terminology guidance.

Keywords: ISO 12308:2017, plain bearings, sample types, quality assurance, initial sample, prototype sample, reference sample, testing, ISO 12301.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2020
Drsni ležaji - Zagotavljanje kakovosti vzorčnih vrst - Definicije, uporaba in
preskušanje
Plain bearings - Quality assurance of sample types - Definitions, applications and testing
Paliers lisses - Assurance de la qualité des types d'échantillons - Définitions, utilisation et
essais
Ta slovenski standard je istoveten z: ISO 12308:2017
ICS:
21.100.10 Drsni ležaji Plain bearings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 12308
Second edition
2017-04
Plain bearings — Quality assurance
of sample types — Definitions,
applications and testing
Paliers lisses — Assurance de la qualité des types d’échantillons —
Définitions, utilisation et essais
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Inspection and test report for samples . 1
5 Marking . 2
6 Types of plain bearing samples, definition and manufacturing process, application
and testing . 2
7 Designation . 2
Bibliography . 4
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 5,
Quality analysis and assurance.
This second edition cancels and replaces the first edition (ISO 12308:1994), which has been technically
revised.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 12308:2017(E)
Plain bearings — Quality assurance of sample types —
Definitions, applications and testing
1 Scope
This document defines the types of plain bearing samples exchanged between purchaser and
manufacturer.
In the field of internal combustion engines and other series production, it is necessary to work with
different types of samples depending on the purpose.
Types of samples are as follows.
— Samples used for tests and examinations which are carried out in the experimental stage and pilot
lot stage
...

INTERNATIONAL ISO
STANDARD 12308
Second edition
2017-04
Plain bearings — Quality assurance
of sample types — Definitions,
applications and testing
Paliers lisses — Assurance de la qualité des types d’échantillons —
Définitions, utilisation et essais
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Inspection and test report for samples . 1
5 Marking . 2
6 Types of plain bearing samples, definition and manufacturing process, application
and testing . 2
7 Designation . 2
Bibliography . 4
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO’s adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 5,
Quality analysis and assurance.
This second edition cancels and replaces the first edition (ISO 12308:1994), which has been technically
revised.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 12308:2017(E)
Plain bearings — Quality assurance of sample types —
Definitions, applications and testing
1 Scope
This document defines the types of plain bearing samples exchanged between purchaser and
manufacturer.
In the field of internal combustion engines and other series production, it is necessary to work with
different types of samples depending on the purpose.
Types of samples are as follows.
— Samples used for tests and examinations which are carried out in the experimental stage and pilot
lot stage. These include fitting samples, prototype samples and intermediate samples.
— Samples used to prove that the quality is in accordance with the quality requirements (dimensions,
material and performance specification). These include initial samples and reference samples and,
if necessary, intermediate samples.
NOTE See ISO 3534 (all parts) and ISO 9000 for further information.
— Samples which give selective information about particular quali
...