ISO INTERNATIONAL STANDARD 7656 First edition 1993-08-01 Commercial road vehicles Dimensional codes Vehicules routiers utilitaires -Codes dimensionnels Referencenumber ISO7656:1993(E) ISO7656:1993(E) Foreword IsO (the International Organization for Standardization) is a worldwide 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 7656 waspreparedbyTechnicalCommittee isO/TC 22, Road vehicles, Sub-Committee SC 6, Terms and definitions of dimensionsandmasses. ISO All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means. electronic or mechanical, including photocopying and microfilm, without per- mission in writing from the publisher. International Organization for Standardization Case Postale 56.CH-1211 Geneve 20: Switzerland Printed in Switzerland INTERNATIONAL STANDARD ISO 7656:1993(E) Commercial road vehicles -- Dimensional codes Scope IsO 6549:1980, Road vehicles - Procedure for H- point determination. This International Standard establishes dimensional codes for commercial road vehicles to be used for the 3 Definitions exchange of vehicle data and electronic processing It applies to commercial road vehicles as defined in For the purposes of this International Standard, the ISO3833. definitions given in IS0 4130 and IS0 4131 and the following definition apply. 3.1 daylight opening: Maximum unobstructed opening through any glass aperture,including reveal orgarnish-mouldings adjoining the glass,accordingto Normative references a given direction or projection. If not specified, the dimension is the horizontal projection. The following standards contain provisions which, through reference in this text, constitute provisions of thislnternationalStandard.Atthetimeof publi- Coding system cation,the editions indicatedwere valid.All standards are subject to revision, and parties to agreements Each dimension given in this International Standard is based on this International Standard are encouraged assigned a code, which is composed of three el- to investigate the possibility of applying the most re- ements, as given in 4.1, 4.2 and 4.3. centeditions ot thestandardsindicated below. Members of IEC and ISO maintain registers of cur- rently valid International Standards. 4.1 Prefix"ISO" ISO 612:1978, Road vehicles Dimensions of motor vehicles and towedvehicles Termsand any confusion with otherexisting coding systems. definitions. 4.2 Type of dimension Iso 1176:1990, Road vehicles — Masses - Vocabu- lary and codes. A capital letter, which denotes the type of dimension, shall be given as follows: IsO 3409:1975, Passenger cars - Lateral spacing of foot controls. L for length; Iso 3832:1991, Passenger cars —,Luggage compart- H for height; ments --- Method of measuring reference volume. W for width; ISO 3833:1977, Road vehicles -- Types -- Terms and D for diameter; definitions. V for volume. ISO 4130:1978, Road vehicles - Three-dimensional reference system and fiducial marks Definitions. L, H or W shall also be used for angles according to whether they are along the zero X -, Z - or Y-planes Iso 4131:1979,Road vehicles Dimensional codes respectively, as defined in 1SO 4130:1978, definition for passenger cars. 3.1.