ISO INTERNATIONAL STANDARD 1134 Second edition 1993-10-15 Pears - Cold storage Poires - Entreposage réfrigeré ISO Reference number ISO1134:1993(E) ISO1134:1993(E) Foreword IsO(the International Organization for Standardization)is a worldwide federation of national standards bodies (isO member bodies). The work 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. DraftInternationalStandardsadoptedbythetechnicalcommitteesare 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 1134 was prepared by Technical Committee ISO/TC 34, Agricultural food products, Sub-Committee SC 14, Fresh fruits and vegetables. This second edition cancels and replaces the first edition (iS0 1134:1980), which has been technically revised. Annexes A and B of this International Standard are for information only. ISO1993 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 OrganizationforStandardization Case Postale 56·CH-1211Geneve20:Switzerland Printed in Switzerland ISO1134:1993(E) Introduction This International Standard provides guidance of a very general nature only. Because of the variability of the fruit according to the time and place conditions of harvesting or other physical conditions in the store. This International Standard does not apply unreservedly, therefore, to all varieties in all climates, and each specialist will decide on any modifi- cations to be made. Moreover, it does not take into account the role played by horticultural factors, and wastage during storage is not dealt with. The importance of ecological or agrotechnicalfactors)are not verywell known; moreover,the origin of many of the most frequent physiological disorders of pears is still uncertain, as are often the appropriate means of combating them. It was therefore considered difficult to prepare recommendations on these two points. Nevertheless, it was considered useful to give, in annex B, a few rec- of knowledge. Subject to all possible restrictions arising from the fact that fruits are living storage to be avoided and long-term storage to be achieved in most cases. ii