ISO INTERNATIONAL STANDARD 7168-2 First edition 1999-07-01 Air quality Exchange of data Part 2: Condensed data format Qualité de I'air Echange de données - Partie 2: Format condenseé de données ISO Reference number ISO 7168-2:1999(E) ISO 7168-2:1999(E) Contents Page 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols and abbreviated terms . .2 5Fileformat. 5.1Overview 2 5.2 Construction of data files .... 6 Specifications. 6.1 Creation of file names 6.2 Formats for presentation of data 4 7 File contents. Annex A (normative) 7-bit coded character set... Annex B (normative) Measurand codes.. 12 Annex C (normative) Presentation of latitude, longitude and altitude data...... Annex D (normative) Coding of data types and parameters , ..20 Annex E (informative) Examples of country short names and codes Annex F (informative) Structure of data file... ..22 Annex G (informative) Example of data file 23 @ISO1999 All rights reserved. Unless otherwise specified, 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 permission in writing from the publisher. International Organization for Standardization Casepostale56·CH-1211Geneve20·Switzerland Internet [email protected] Printed in Switzerland @ ISO ISO 7168-2:1999(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (IsO memberbodies).The workofpreparingInternationalStandardsis normallycarried outthroughISOtechnical committees. Each member body interested in a subject for which a technical committee has been established has liaison with isO, also take part in the work. isO collaborates closely with the International Electrotechnical International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 3. 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 7168-2 was prepared by Technical Committee ISO/TC 146, Air quality, Subcommittee SC 4, General aspects. IsO 7168 consists of the following parts, under the general title Air quality - Exchange of data: -Part 1: Generaldata format Part 2: Condensed data format The first editions of the several parts of isO 7168 together cancel and replace the first edition (isO 7168:1985)) which has been technically revised. Annexes A, B, C and D form a normative part of this part of ISO 7168. Annexes E, F and G are for information only ili