4127/1 (ISO Intemational Standard INTE RNATIONAL ORGANIZATION FOR STANDARDIZATIONMEXAYHAPOAHAR OPrAHW3ALMR nO CTAHAAPTW3AWW-ORGANISATION INTE RNATIONALE DE NORMALISATION Shipbuilding Inland navigation - Fairleads Part 1 : Two-lip fairleads Construction navale - Navigation interieure -- Chaumards - Partie 1 : Chaumards a deux levres First edition -- 1979-07-01 0 4127/ 1-1979 (E) UDC 629.122.014.24 Ref. No. 1SO 4127/1-1979 (E) Descriptors : shipbuilding, inland navigation, fair leads, specifications, equipment specifications, dimensions. Copyright International Oorganizatin for Standardization Price based on 2 pages 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 Interna- tional 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 the ISo Council. International Standard ISO 4127/1 was developed by Technical Committee ISO/TC 8, Shipbuilding, and was circulated to the member bodies in June 1977. It has been approved by the member bodies of the following countries : Austria Greece Netherlands Belgium India Poland Brazil Ireland Romania Bulgaria Italy Spain Czechoslovakia ueder Turkey Finland Korea, Dem.P.Rep. of United Kingdom France USSR Korea, Rep. of Mexico Germany, F.R. No member body expressed disapproval of the document. International Organization for Standardization, 1979 Printed in Switzerland Not for Resale INTERNATIONAL STANDARD ISO 4127/1-1979 (E) Shipbuilding - Inland navigation - Fairleads Part 1 : Two-lip fairleads Scope and field of application 3.2 The basic dimensions and properties specified in this 1 International Standard correspond to the following seven This International Standard specifies the design, sizes, basic loads : 25, 40, 63, 100, 160, 250, 400 kN. parameters and technical requirements of cast two-lip fairleads for inland vessels. Technical requirements 4 4.1 These fairleads shall withstand, without damage and Reference 2 plastic deformation, the breaking load of a steel wire rope as in- dicated in the table. ISO 2408, Steel wireropesfor general Characteristics. 4.2 Fairleads of this type shall be fabricated from weldable cast steel having a yield point of not less than 22 × 104 kN/m2 (22 kgf / mm2). Design 3 4.3 Finish : 3.1 The design of two-lip fairleads shall be as shown in the annealed and cieaned (sand-blasted) casting. figure. Copyright International Organization for Standardization ted without license from IHS Not for Resale