ISO 8721:2018

INTERNATIONAL ISO
STANDARD 8721
Third edition
2018-08
Road vehicles — Measurement
techniques in impact tests — Optical
instrumentation
Véhicules routiers — Techniques de mesure lors des essais de chocs —
Instrumentation optique
Reference number
ISO 8721:2018(E)
©
ISO 2018

---------------------- Page: 1 ----------------------
ISO 8721:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
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 2018 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 8721:2018(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 5
5 Performance . 7
5.1 General requirements . 7
5.2 Reference distance . 7
5.3 Time base system. 7
5.4 Performance of the optical data channel . 7
5.4.1 General. 7
5.4.2 Performance indices . 7
5.4.3 2D performance value . 8
5.4.4 3D performance value . 8
5.4.5 Performance value of the optical data channel . 9
5.5 Accuracy of the optical data channel . 9
5.5.1 Accuracy indices . 9
5.5.2 Length measurement error and accuracy value of a reference distance .10
5.5.3 Length measurement error and accuracy value of the optical data channel .10
5.6 Types of procedure .11
5.6.1 General.
...