ISO 15509:2019

INTERNATIONAL ISO
STANDARD 15509
Second edition
2019-05
Adhesives — Determination of the
bond strength of engineering-plastic
joints
Adhésifs — Détermination de la résistance de joints collés des
plastiques industriels
Reference number
©
ISO 2019
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Specimen . 2
5.1 Preparation . 2
5.1.1 General. 2
5.1.2 Mould . 2
5.1.3 Injection-moulding parameters . 3
5.1.4 Removal of the sprue . . 3
5.1.5 Geometry . 3
5.2 Surface preparation . 3
5.3 Assembly of the specimen in the mounting jig. 4
5.4 Application of the adhesive . 5
5.5 Conditioning and testing atmosphere. 5
6 Apparatus . 5
7 Procedure. 5
8 Expression of results . 8
9 Precision . 8
10 Test report . 8
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 of 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 www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 11,
Products.
This second edition cancels and replaces the first edition (ISO 15509:2001), which has been technically
revised. The main changes compared to the previous edition are as follows:
— the list of normative references in Clause 2 has been updated;
— the mandatory terms and definitions clause (Clause 3) has been inserted.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved

Introduction
Methods of determining the strength of adhesive joints are well known. Several International Standards
describe various methods including the lap-shear test or the butt torsion test. However, these methods
are either not suitable for the determination of values which can be used for design purposes, or are
restricted to metallic substrates. Because the existing International Standards for the measurement of
the strength of bonded plastic materials are derived from test methods for metals and are less suitable
for plastic materials due to the bending of substrates and varying modulus of elasticity, a new test
method and a new test geometry have been developed and are described in this document.
INTERNATIONAL STANDARD ISO 15509:2019(E)
Adhesives — Determination of the bond strength of
engineering-plastic joints
1 Scope
This document describes a test method for measuring the shear and/or tensile strength of an adhesively
bonded plastic/plastic specimen of a specific design. This method allows the determination of a
combined shear and tensile behaviour of the bond. These shear and tensile values are useful for design
purposes.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 291, Plastics
...