Adhesives — Guidelines for the fabrication of adhesively bonded structures and reporting procedures suitable for the risk evaluation of such structures

This document provides guidelines describing the adhesive bonding quality requirements suitable for use by adhesive user-companies utilizing adhesive bonding as a means of fabrication. In particular, the guidelines define various approaches to meeting quality requirements for fabrication and reporting procedures, both in workshops and on site. These guidelines aim to convey the importance of maintaining quality standards in fabrication and reporting procedures, keeping records and thus enabling documentation to provide the basis for risk evaluation of adhesively bonded structures in service and in use. These guidelines have been prepared such that: a) they are independent of the type of adhesively bonded structure; b) they are independent of adhesive user-companies’ and suppliers’ product recommendations; c) they define the quality requirements for adhesive bonding in terms of fabrication and reporting procedures, both in workshops and on site; d) they can be used as the basis for risk evaluation of adhesively bonded structures in service and in use; e) they can be used as a basis for assessing a fabricator's capability to produce adhesively bonded structures fulfilling specified quality requirements when they are detailed in one or more of the following: — a contract between the parties involved; — an application standard; — a regulatory statement. The guidelines contained within this document can be adopted in full or selectively chosen by the adhesive user to suit the structure concerned. The guidelines provide a flexible framework for the control of adhesive bonding activities in the following cases. Case 1 The provision of specific requirements for adhesive bonding in contracts that require the adhesive user to have a quality system other than ISO 9001. Case 2 The provision of specific requirements for adhesive bonding as guidance to an adhesive user developing a quality system. Case 3 The provision of specific requirements for references in application standards that uses adhesive bonding as part of its requirements or in a contract between relevant parties. Case 4 The provision of a framework for fabrication and reporting procedures to a quality standard, suitable in particular as a basis for the risk evaluation of adhesively bonded structures.

Adhésifs — Lignes directrices pour la fabrication des structures collées par adhésifs et procédures d'établissement de rapports pour l'évaluation des risques de telles structures

Le présent document apporte des lignes directrices pour décrire les exigences de qualité d'assemblage par collage pour les entreprises utilisant des adhésifs et l'assemblage par collage comme moyen d'assemblage. En particulier, les lignes directrices définissent différentes approches pour parvenir aux exigences de qualité pour les procédures de fabrication et d'établissement de rapports, à la fois dans les ateliers et sur site. Elles ont pour objet de sensibiliser à l'importance de l'application de normes de qualité dans les procédures de fabrication et d’établissement de rapports, de conserver des enregistrements et de permettre ainsi à la documentation de procurer les fondements de l'évaluation du risque des structures collées lors de leur utilisation. Ces lignes directrices ont été préparées de sorte que: a) elles ne dépendent pas du type de structure collée; b) elles ne dépendent pas des recommandations des entreprises utilisatrices et du fournisseur de l'adhésif; c) elles définissent les exigences de qualité pour les procédures de fabrication et d'établissement de rapports des assemblages par collage, à la fois dans les ateliers et sur site; d) elles peuvent servir de base à l'évaluation du risque des structures collées au cours de leur utilisation; e) elles peuvent servir de fondement à l'évaluation de la capacité d'un fabricant à produire des structures collées répondant aux exigences de qualité spécifiées lorsqu'elles sont détaillées dans au moins un des documents suivants: — un contrat entre les parties impliquées; — une norme d'application; — une réglementation. Les lignes directrices contenues dans le présent document peuvent être adoptées en tout ou partie, au choix de l'utilisateur de l'adhésif, pour convenir à la structure en question. Les lignes directrices fournissent un cadre souple pour le contrôle des activités d'assemblage par collage dans les cas suivants. Cas 1 L'apport d'exigences spécifiques pour le collage dans des contrats qui nécessitent que l'utilisateur de l'adhésif ait un système qualité autre que l'ISO 9001. Cas 2 L'apport d'exigences spécifiques pour le collage comme lignes directrices pour un utilisateur d'adhésif mettant au point un système qualité. Cas 3 L'apport d'exigences spécifiques comme référence dans des normes d'application qui utilisent le collage dans leurs exigences ou dans un contrat entre les parties concernées. Cas 4 L'apport d'un cadre pour les procédures de fabrication et d’établissement de rapports d'une norme de qualité capable, en particulier, de servir de base à l'évaluation du risque des structures collées.

General Information

Status
Published
Publication Date
06-Mar-2022
Current Stage
6060 - International Standard published
Start Date
07-Mar-2022
Due Date
05-Dec-2021
Completion Date
07-Mar-2022
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ISO 21368:2022 - Adhesives — Guidelines for the fabrication of adhesively bonded structures and reporting procedures suitable for the risk evaluation of such structures Released:3/7/2022
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INTERNATIONAL ISO
STANDARD 21368
Second edition
2022-03
Adhesives — Guidelines for the
fabrication of adhesively bonded
structures and reporting procedures
suitable for the risk evaluation of such
structures
Adhésifs — Lignes directrices pour la fabrication des structures
collées par adhésifs et procédures pour l'établissement de rapports
pour l'évaluation des risques liés à ces structures
Reference number
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword . vi
Introduction .vii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Core element 1: Classification of adhesively bonded joints according to safety
requirements . 9
4.1 General . 9
4.2 Definition of safety classes . 10
4.3 Documentation of the classification according to safety classes . 11
5 Core element 2: Adhesive bonding personnel (ABP)— Competences, knowledge
and experiences .11
5.1 General . 11
5.2 Adhesive bonding operators (ABO) .12
5.2.1 General .12
5.2.2 Functions . 12
5.2.3 Duties .12
5.2.4 Competences, knowledge and experiences .12
5.3 Adhesive bonding coordinator (ABC) . 13
5.3.1 General .13
5.3.2 Functions . 13
5.3.3 Duties .13
5.3.4 Competences .15
5.3.5 Organizational integration of adhesive bonding coordination.15
5.4 Levels of competences, knowledge and experiences for adhesive bonding
personnel (ABP) . . . 16
5.4.1 General . 16
5.4.2 Requirements for each level of competences, knowledge and experiences . 16
5.5 Assignment of the three competence levels to the safety classes depending on the
respective scope of work — Correlation of the core elements . 18
5.6 Comparability of competences, knowledge and experience . 19
5.7 Monitoring, inspection and testing personnel . 19
6 Core element 3: Design and verification of adhesively bonded joints .19
6.1 General . 19
6.2 Assignment to safety classes . 19
6.3 Requirements to be met by the adhesively bonded joints . 20
6.4 Design of adhesively bonded joints . 20
6.5 Adherends . 20
6.6 Adhesive . 20
6.7 Surface treatment . 21
6.8 Factors affecting the adhesive bonding process . 21
6.9 Verification . . 21
6.9.1 General . 21
6.9.2 Method 1 — Load in use < maximum load capacity . 21
6.9.3 Method 2 — Component testing . 22
6.9.4 Method 3 — Documented experience . 22
6.9.5 Method 4 — Combination of methods 1 to 3 .22
7 Drafting contracts and subcontracting (outsourcing) .22
7.1 General .22
7.2 Subcontracting (Outsourcing) . 23
7.2.1 General .23
7.2.2 Deciding on subcontracting . . 24
iii
7.2.3 Details and documentation of procurement . 24
7.2.4 Selection of external service provider (subcontractor/supplier) and
contracting . 24
7.2.5 Management of external service providers (subcontractors/suppliers) .25
8 Workmanship .25
8.1 General . 25
8.2 General process requirements . 25
8.2.1 Production planning . 25
8.2.2 Process design .25
8.2.3 Planning the use of production aids and tools . 26
8.2.4 Production documents . 27
8.2.5 Process approval . 27
8.2.6 Transport, storage and logistics for adhesives, auxiliary materials and
adherends . 27
8.2.7 Production environment .28
8.2.8 Materials .29
8.2.9 Preparation of work stations and acclimatization of materials .29
8.2.10 Health and safety and environmental protection .30
8.2.11 Checking for fitting accuracy concerning shape, position and dimension .30
8.2.12 Checks prior to start of production .30
8.2.13 Treatment of the adherend surfaces . 31
8.2.14 Dosing, mixing and application . 32
8.2.15 Inspection and testing during adhesive bonding and adhesive solidification .33
8.2.16 Joining the adherends .33
8.2.17 Fixing .34
8.2.18 Solidification of the adhesive .34
8.2.19 Inspection and testing of finished components. 35
8.2.20 Packaging and transport of adhesively bonded components . 35
8.3 Work instructions: minimum requirements . 35
8.4 Process reliability .
...

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