2166 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAA OPrAHW3AUMA NO CTAHAAPTW3AUWMORGANISATION INTERNATIONALE DE NORMALISATION Carrots Guide to storage Carottes - Guide pour I'entreposage Second edition -1981-10-15 02166-1981 (E) UDC 635.132 :664.8.03 Ref.No.ISO2166-1981(E) Descriptors : agriculitural products, vegetables, carrots, food storage. Price based on 2 pages No reproduction or networking permitted without license from IHS Not for Resale Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards institutes (Iso member bodies). The work of developing Inter- national Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been set' up 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by theISoCouncil. International Standard ISO 2166 was developed by Technical Committee ISO/TC 34, Agricultural food products. This second edition was submitted directly to the Iso Council, in accordance with clause 5.10.1 of part 1 of the Directives for the technical work of ISo. It cancels and replaces the first edition (i.e. IS0 2166-1974), which had been approved by the mem- ber bodies of the following countries : Australia Germany, F. R. Portugal Austria Hungary Romania Belgium India South Africa, Rep. of Chile Iran Sweden Czechoslovakia Israel Turkey Egypt, Arab Rep. of New Zealand United Kingdom France Poland The member body of the following country had expressed disapproval of the docu- ment on technical grounds : Netherlands International Organization for Standardization, 1981 Printed in Switzerland Copyright Intemational Organizatior n for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO2166-1981(E) INTERNATIONALSTANDARD Carrots - Guide to storage Scope and field of application 3.3 Putting into store This International Standard describes methods for obtaining The carrots should beput into store as soon as possible after conditions for the successful conservation, with or without being harvested artificial cooling, of carrots of varieties of Daucus carota Linnaeus. Carrots should not be put into storage with other fruit and vegetables which produce ethylene. It applies only to carrots produced for storage during the winter. 3.4 Method of storage See also the limits of application given in the annex. Thecarrotsmaybestoredinbox-pallets,boxesorbags,orin bulk. If they are stored in bulk, the height of the layer of carrots should be specified according to the hardness of the variety of 2 Reference carrot, the quality of the lot and the condition of the ventilation device. The maximum recommended height is 2 to 3 m. In the ISo 2169, Fruits and vegetables - P Physicalconditionsincold case of bags, the maximum height is 3 m. stores - Definitions and measurement. Perforated plastics films may be used, either as internal linings of boxes or for covering stacks of boxes. 3 Conditions of harvesting and putting into store 4 Optimum storage conditions1) 3.1 Harvesting 4.1 Temperature For storage purposes, it is recommended that carrots origina- ting preferably from late sowing should be selected. The car- The storage temperature should be kept between O and rots should be harvested in good time and should not be over- + 5 oC. The optimum keeping temperature is between 0 and mature. The tops should be cut off at the level of the crown, + 1 °c. without damaging the roots. 4.2 Relative humidity If harvesting is carried out in wet weather, the carrots should be dried for just as long as necessary before storage, avoiding ex- In refrigerated chambers w