ISO 23129:2021

Space systems — Thermal control coatings for spacecraft — Atomic oxygen protective coatings on polyimide film

This document defines the general requirements for atomic oxygen (AO) protective coatings that are applied on polyimide thermal control films. It also describes the different properties of coated polyimide films such as indium tin oxide (ITO), SiOx, germanium, and silicone, property measurement test methods, and selection guidelines.

Systèmes spatiaux — Revêtements de contrôle thermique pour engins spatiaux — Revêtements de protection contre l’oxygène atomique sur film polyimide

General Information

• Status: Published
• Publication Date: 26-Sep-2021
• ICS: 49.140 - Space systems and operations
• Technical Committee: ISO/TC 20/SC 14 - Space systems and operations
• Drafting Committee: ISO/TC 20/SC 14/WG 6 - Materials and processes
• Current Stage: 6060 - International Standard published
• Start Date: 27-Sep-2021
• Due Date: 18-Jan-2022
• Completion Date: 27-Sep-2021

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 23129
First edition
2021-09
Space systems — Thermal control
coatings for spacecraft — Atomic
oxygen protective coatings on
polyimide film
Systèmes spatiaux — Revêtements de contrôle thermique pour engins
spatiaux — Revêtements de protection contre l’oxygène atomique sur
film polyimide
Reference number
©
ISO 2021
© ISO 2021
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 3
4 General requirements and recommendations . 3
4.1 General . 3
4.2 Visual characteristics . 4
4.3 Coating thickness . 4
4.4 Thermo-optical properties . 4
4.5 Thermal vacuum stability . 4
4.6 AO resistance . 4
4.7 UV resistance . 5
4.8 Radiation resistance . 5
4.9 Adhesion . 5
4.10 Volume resistance . 5
4.11 Surface resistance . 5
4.12 Secondary electron emission yield . 5
4.13 Photoelectron emission yield . 5
4.14 Thermal cycling . 5
4.15 Repair/Retouch . 5
4.16 Cleaning . 5
5 Test methods . 6
5.1 General . 6
5.2 Visual inspection . 6
5.3 Coating thickness . 6
5.4 Thermo-optical properties . 6
5.5 Thermal vacuum stability . 7
5.6 AO resistance . 7
5.6.1 Product qualification test . 7
5.6.2 Life estimation test . 7
5.7 UV resistance . 7
5.7.1 Product qualification test . 7
5.7.2 Life estimation test . 8
5.8 Radiation resistance . 8
5.8.1 Product qualification test . 8
5.8.2 Life estimation test . 8
5.9 Adhesion . 8
5.10 Volume resistance . 9
5.11 Surface resistance . 9
5.12 Secondary electron emission yield . 9
5.13 Photoelectron emission yield . 9
5.14 Thermal cycling (influence of temperatures) .10
5.15 Repair/Retouch .10
5.16 Cleaning .10
6 Requirements and recommendations for application .10
6.1 Consideration for usage .10
6.2 Identification .11
6.3 Protectors .11
6.4 Packing .11
7 Production program of quality assurance .11
7.1 General .11
7.2 Changes and revisions .12
7.3 Record of changes . .12
Annex A (informative) Types of coatings .13
Annex B (informative) General properties of atomic oxygen protective coatings .14
Annex C (informative) Coatings selection guideline .16
Annex D (informative) Visual characteristics guideline .18
Bibliography .19
iv © ISO 2021 – All rights reserved

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
c
...