E690900 E06TS9h (ISO 8148 nternational Standard INTERNATIONALORGANIZATION FORSTANDARDIZATION·MEKAYHAPOAHAROPTAHM3ALMH HO CTAHAAPTW3ALWMORGANISATIONINTERNATIONALEDENORMALISATION Shipbuilding and marine structures - Derrick boom headfittings - Fixed type Construction navale et structures maritimes - Ferrures de tete de corne de charge - Type fixe First edition - 1985-05-01 UDC 629.12.014 Ref. No. ISO 8148-1985 (E) SO 8148-1985 (E) Descriptors : shipbuilding, ifting equipment, derricks, fttings, metal plates, specifications, dimensions, designation, marking, positioning. Price based on 5 pages Not for Resale d without license from IHS 5g-ght9 h60900.E6 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 ISO 8148 was prepared by Technical Committee ISO/TC 8, Shipbuilding and marine structures. @ International Organization for Standardization, 1985 Printed in Switzerland Copyright International Organization for Standardization without license from IHS Not for Resale 4851903 0060695 0 s-ght? ISO 8148-1985 (E) INTERNATIONAL STANDARD Shipbuilding and marine structures - Derrick boom headfittings - Fixed type 1 Scope and field of application 4.2 Nominal sizes This International.Standard specifies dimensions and materials The nominal size designation for the cargo end and for the span for fixed type headfittings on ships' derrick booms for cargo end of a cargo-span headfitting plate is a numerical value handling purposes. Guidance information on the positioning without unit for reference and ordering purposes, and is of the guy eyeplate (eyeplate according to Is0 8146) on the derived from the permissible load in kilonewtons. derrick boom is given in the annex. 4.2.1 Preferred nominal sizes 2 References The preferred nominal sizes are intended only where a rationalized range of headfitting'plates is required. ISo/R 286, ISO system of limits and fits - Part 1: General, tolerances and deviations. NOTE -- The preferred sizes appear in bold-face type in table 1. Iso 630, Structural steels. Iso 8146, Shipbuilding and marine structures - Oval eyeplates. 5Materials Iso 8147, Shipbuilding - Ships' lifting gear -- Terminology. 1) Steel according to IsO 630, grade Fe 360 (as minimum quality). NOTE -- Alternatively ship quality steel plate may be used provided that it has equivalent mechanical and welding properties. 3 Definitions For the purposes of this International Standard, the definitions given in ISO 8147 apply. 6 Manufacture Classification Forming 6.1 4.1 Types The headfitting shall be formed by a gas cutting process and subsequently forged or machined as necessary in order to pro- Fixed type derrick boom headfittings are divided into the duce the required finished section shape. following two types: Care shall be taken to ensure that a smooth transition is made type A: with oval eye in the cargo end parallel to the between the sections. cargo boom; The headfitting may be manufactured of two single parts (span type B: with oval eye in the cargo end oblique to the end and cargo end) which shall be welded to one common cargo boom. component before mounting. 1) At present at the stage of draft proposal. 1 Copyright International Organization for Standardization Not for Resale se f
ISO 8148-1985Shipbuilding and marine structures. Derrick boom headfittings. Fixed type first edition (1)
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