ISO INTERNATIONAL STANDARD 949 Second cdition 1987-06-01 INTERNATIONALORGANIZATIONFORSTANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION MEKAYHAPOAHAA OPIAHW3ALMA NO CTAHAAPTV3ALWW Cauliflowers -- Guide to cold storage and refrigerated transport Choux-fleurs -Guide pour I'entreposage et le transport refrigeres Referencenumber ISO 949: 1987 (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, govern- mental 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 the Iso Council. They are approved in accordance with iSo procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO949 was prepared by Technical Committee ISO/TC 34, Agricultural food products. This second edition cancels and replaces the first edition (IS0 949 : 1978), the scope of which has been expanded to include the refrigerated transport of cauliflowers. Users should note that all International Standards undergo revision from time to time latest edition, unless otherwise stated, ? International Organization for Standardization,1987 Printed in Switzerland CoDvriaht Int on for Standardizatior ISO949:1987(E) INTERNATIONAL STANDARD Cauliflowers Guide to cold storage and refrigerated transport Scopeand field of application 3.3 Packages This international Standard describes methods for obtaining The most common type of package is a wooden crate of open conditionsfor the successful cold storage and long-distance construction but waxed corrugated paperboard cartons are refrigerated transport of cauliflowers of variousvarieties de- also used successfully. rivedfrom Brassicaoleracea Linnaeus var.botrytis Linnaeus subvar.caulifloraA.P.Decandolle,intended eitherfor direct Parchment paper or plastics wraps (polyethylene, polyvinyl consumption or for industrial processing. chloride, etc.) may be used to retard the loss of moisture. These materials may be used to line the boxes, to wrap in- dividual heads or to cover a stack of crates.The packages used References shall protect the product but have adequate air vents to provide for product cooling during transport and storage. Iso2169,Fruits and vegetables-Physical conditions in cold stores -Definitionsandmeasurement. Iso 6661,Fresh fruits and vegetables -Arrangement of parallelepipedic packages in land transport vehicles. Optimum storage and transport conditions1) 3Conditions of harvesting and packing 4.1 Putting into store 3.1 Harvesting The cauliflowers shall be precooled as soon as possible after Cauliflowers intended for storage shall be harvested before harvesting because even after 48 h at a temperature of 15 oC, the curds begin to yellow and changes due to bacteria or fungi maximum development of the curds.They shall preferably be become evident. These changes are irreversible. If transport harvested in the morning. between the place of harvesting and the cold store requires The date of harvesting shall be determined according to the several days, the cauliflowers shall be cooled before transport. state of maturity of the curds.In hot weather, a delay of even one day in harvesting may cause yellowing, spliting and 4.2 Temperature spreading of the curds. The optimum temperature for storage and transport of Quality requirements cauliflowers is in the range 0 to 4 °c. Temperatures below 0 °C 3.2 lead to changes due to frost. The temperature chosen shall be kept constant throughout the whole period of storage and The curds shall be