ISo 7221 International Standard INTE RNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAR OPrAHW3AMA nO CTAHAAPTW3AUWW+ORGANISATION INTE RNATIONALE DE NORMALISATION Shipbuilding and marine structures - Shipborne barges, series 1, on barge carriers - Principal technical requirements Construction navale et structures maritimes - Barges de la série 1 embarquees a bord des navires porte-barges Exigences techniques principales First edition - 1984-07-15 UDC 629.122.3 : 629.123.5 Ref. No. 1SO 7221-1984 (E) 0 7221-1984 (E) Descriptors : shipbuilding, ships, barges, specifications. Price based on 1 page Copyright International Organization for Standardization Not for Resale itted without license from IHS Foreword IsO (the international Organization for Standardization) is a worldwide federation of national:'standards bodies (ISO member bodies). The work of developing International Standards is carried out through isO technical committees. Every member body in- terested in a subject for which a technical committee has been set up has the right to be represented on that committee. Internationai 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 the ISO Council. International Standard ISO 7221 was developed by Technical Committee ISO/TC 8, Shipbuilding and marine structures, and was circulated to the member bodies in September 1983. It has been approved by the member bodies of the following countries : France Austria Mexico Belgium India Romania Bulgaria Italy Sweden Czechoslovakia Japan United Kingdom Egypt, Arab Rep. of Korea, Dem. P. Rep. of USA Finland Korea, Rep. of USSR No member body expressed disapproval of the document. C) International Organization for Standardization, 1984 : Printed in Switzerland ariz Not for Resale INTERNATIONAL STANDARD ISO 7221-1984 (E) Shipbuilding and marine structures - Shipborne barges, series 1, on barge carriers - Principal technical reguirements Scope and field of application 1 barges, series 1A, fully loaded while stacked in a barge carrier's hold. In this case, the inertia loadings arising from oscillating This International Standard specifies the principal technical re- and linear translatory motion of the barge carrier and any quirements for shipborne barges, series 1, during their loading, uneven distribution of load in a barge should be taken into unloading and transport on board barge carries. account. Reference 2 5 Securing the barges in the hold and on deck of the barge carrier ISO 4175, Shipbuilding - Shipborne barges, series 1 - Main dimensions. To secure the barges in the hold and on deck of the barge car rier they shall be fitted with special accessories and devices (supporting surfaces, lifting post fittings). The arrangement Conditions of lifting 3 and construction of these accessories and devices shall be in accordance with IsO 4175. Shipborne barges, series 1, shall be built so that their strength is sufficient to permit repeated lifting by lifting posts with the barge fuliy loaded. 6 Deck openings Stacking 4 All deck openings (including hatch openings) where opera- tionally appropriate shall be provided with adequate weather Lifting posts of shipborne barges, series 1A, 1B and 1C, shall tight protection devices to prevent the ingress of rain or sea be equal in strength and withstand the mass loading of four water. Copyright International Organization for Standardization nse from IHS Not for Resale