ISO INTERNATIONAL STANDARD 11520-1 First edition 1997-07-01 Agricultural grain driers - Determination of drying performance - Part 1: General Sechoirs a grains agricoles -- Determination des performances deséchage- Partie1:Généralités [so Reference number ISO 11520-1:1997(E) No reproduction or networking permitted without license from IHS Not for Resale ISO 11520-1:1997(E) Contents Page Scope 1 1 2 Normative references 1 3 Definitions 1 4 Symbols and abbreviations 3 5 Principle 4 6 Instrumentation and specifications 4 7 Preparation for test .6 8 Grain sampling 7 9 Test procedures 9 10 Calculation of results 11 11 Test report 14 Annexes A Correction to standard conditions . 15 B Estimation of uncertainty of derived measures of performance 17 c Checklist .. 23 D Air flow measurement and calculations 25 E Example format for test report 28 @ISO1997 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. InternationalOrganizationforStandardization Case postale 56 . CH-1211 Geneve 20 . Switzerland Intemet [email protected] X.400 C=ch; a=400net; p=iso; o=isocs; Scentral Printed in Switzerland ii Copyright Int or Standardizatior No reproduction or networking permitted without license from IHS Not for Resale ISO 11520-1:1997(E) @ ISO Foreword Iso (the International Organization for Standardization) is a worldwide federationofnational standardsbodies(isOmemberbodies).Theworkof 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 11520-1 was prepared by Technical Committee SO/TC23, , Tractors and machinery for agriculture and forestry, Subcommittee SC 7, Equipment for harvesting and conservation. Iso 11520 consists of the following parts, under the general title Agricultural grain driers --- Determination of drying performance: Part 1:General Part 2: Specification of crop quality, moisture content and perform- ance correctionmethod AnnexA forms an integral part of this part of ISO11520.Annexes B to E are for information only. Not for Resale