ISO 18251-1:2017

INTERNATIONAL ISO
STANDARD 18251-1
First edition
2017-02
Non-destructive testing — Infrared
thermography —
Part 1:
Characteristics of system and
equipment
Essais non destructifs — Thermographie infrarouge —
Partie 1: Caractéristiques du système et des équipements
Reference number
ISO 18251-1:2017(E)
©
ISO 2017

---------------------- Page: 1 ----------------------
ISO 18251-1:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© 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. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 18251-1:2017(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 IR system setup . 1
5 Objective lens . 2
5.1 General . 2
5.2 Spectral response. 2
5.3 Focal length (mm) . 2
5.4 Aperture f-number . 2
5.5 Interchangeable object lenses . 3
6 Detector . 3
6.1 General . 3
6.2 Detector types . 3
6.3 Detector arrays . 3
6.4 Scanning systems . 3
6.5 Working wavelength range . 3
6.6 Number of
...