ISO INTERNATIONAL STANDARD 11520-2 First edition 2001-02-01 Agricultural grain driers Determination of drying performance - Part 2: Additional procedures and crop-specific requirements Séchoirs a grains agricoles Détermination des performances de séchage- Partie 2: Modes opératoires supplémentaires et exigences spécifiques a la récolte Reference number E ISO 11520-2:2001(E) ISO @ ISO 2001 HS under I without license from IHS Not for Resale ISO 11520-2:2001(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by isO member bodies. In the unlikely event ?ISO2001 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 either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.ch Printed in Switzerland @ ISo 2001 - All rights reserved ermittedwithoutlicense from IHS Not for Resale ISO 11520-2:2001(E) Contents Page Foreword. Introduction 1 Scope. 2 Normative reference. 3 Terms and definitions . 4 Symbols and abbreviated terms .. 5 Test procedure.. 5.1 General.... 5.2 Test period.. 5.3 Frequency of sampling grain... 5.4 Moisture removal. 5.5 Grain dampening . 5.6 Procedure for a multi-pass test..... 6 Grain quality 6.1 General.. 6.2 Input grain. 6.3 Output grain .. 9 7 Methods of correction of test results . 10 7.1 General........ 10 7.2 Evaporation rate.... 7.3 Mass flow rate of grain... 13 7.4 Corrected drying time ....... 7.5 Specific thermal energy, total energy and fuel consumption .13 8 Test report ...... Annex A (informative) Grain moisture content and sampling . Annex B (informative) Moisture removal in specific crops.... Annex C (normative) Testing reduction in grain germination... ..20 Annex D (normative) Tables for correction of drier performance.. .21 Annex E (informative) Airflow calculations ... Copyrgh IntemaonaOrganiatin tor Standardizaion served ili py IHS under ted withoutlicensefrom IHS Not for Resale ISO 11520-2:2001(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (iSO memberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedout throughSOtechnica 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 Commission (IEC) on all matters of electrotechnical standardization. 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. Attention is drawn to the possibility that some of the elements of this part of isO 11520 may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. agricultureandforestry,SubcommitteeSC7,Equipmentforharvestingandconservation IsO 11520 consists of the following parts, under the general title Agricultural grain driers Determination of drying performance 一 Part1:General Part 2:Additional procedures and crop-specific requirements Annexes C and D form a