ISO/TC 8/SC 8 - Ship design

This document specifies the requirements for design including shape and dimensions, material as well as strength for pipe support. Applicable pipe size range varies depending on support types. This document covers topside systems for fixed or floating offshore oil and gas projects. This document is applicable to design temperature of support within the range between –46 °C up to 200 °C. This document is limited to metallic pipes, covering the following pipe supports: — clamped shoe; — welded shoe; — U-bolt; — U-strap; — bracing for branch connection; — trunnion and stanchion; — guide support (guide, hold-down, guide and hold-down, line stop).

This document specifies the classification, flagging, requirements, test methods, inspection rules, markings, packaging, transportation and storage of fireproof watertight hatch covers installed on decks (hereafter referred to as “hatch covers”). This document applies to the design, manufacture and acceptance of fireproof watertight hatch covers installed on decks of ships where anticipated water pressure by wave is up to 10 m.

This document provides a laboratory test method to determine the skin-friction of antifouling paints coated on drums. The results of the laboratory-tested friction of painted drums over a certain period of time can be used for screening of antifouling paints and characterizing changes in friction for different antifouling paints, amongst other applications and other purposes depending on the user's need. This document is applicable to both biocidal-based and biocide-free antifouling paints.

This document specifies a full-scale test method for propeller cavitation observation and hull pressure measurement. The objective of the test is to investigate the propeller cavitation behaviour and its effects on the hull vibration problems. The test method comprises the specification of the test instrumentation and implementation, construction requirements to ensure structural safety, test and measurement procedures, and reporting documentation. This document is applicable to ships in the following stages: — before or during sea-trial, prior to delivery stage (vessels under constructions), and — after delivery stage.

This document specifies dimensions, materials, quality of manufacture and finish for guardrails and stanchions fitted on exposed freeboard and superstructure decks of cargo ships to prevent personnel falling overboard or to lower decks. It is not applicable to guardrails fitted near compasses.

This document describes a method for determining the resistance of Cryogenic Spill Protection (CSP) systems to vapour generated from a cryogenic liquid release where the liquid content is practically zero. It is applicable where CSP systems are installed on carbon steel. The test provided in this document is not applicable to high pressure cryogenic liquid releases that can be found in refrigeration circuits and in LNG streams immediately post-liquefaction.

This document describes the specification of high manganese (Mn) austenitic steel thin strips with good weldability and good resistance to atmospheric corrosion intended to be used for LNG tanks on board ships. It covers strips with a thickness ranging from 0,3 mm to 6,0 mm.

This document specifies general requirements, the materials and test methods for the buoyancy chamber of inflatable buoyancy support systems, which serve residual buoyancy for damaged ships not to sink or capsize, and which can be installed in machinery spaces and/or cargo holds.

This document specifies general requirements, the installation and the activation of the gas supply system of inflatable buoyancy support systems, which serve residual buoyancy for damaged ships not to sink or capsize, and which can be installed in machinery spaces and/or cargo holds. It is intended to ensure the functions of the gas supply system, which uses a gas media, such as an asphyxiant, to inflate the buoyancy chamber of the inflatable buoyancy support systems.

This document specifies a model test method for propeller cavitation noise evaluation in ship design, focusing mainly on the noise source localization. The procedure comprises the model test set-up, noise measurements, data processing and source localization. The target noise source being propeller cavitation, this document describes the test set-up and conditions to reproduce the cavitation patterns of the ship, which is the same as in ISO 20233‑1. The noise measurements are performed using a hydrophone array for the source localizations. Therefore, the instrumentation of the hydrophone array is also addressed, as well as a suitable array signal processing of the measured data. Finally, a method to visualize and to interpret the results is presented.

This document provides general requirements for the accuracy, installation, calibration and verification of trim and list inclinometers used for the determination of trim and list of LNG carriers for the purpose of measuring on-board cargo level.

This document specifies requirements for watertight and oiltight manholes of the current types with bolted covers, for general shipboard use other than for pressure vessels. It specifies the dimensions for the holes in the plating and the number, size and position of the fasteners. It is applicable to manholes of raised coaming, surface mounted or recessed cover types. The details of the manholes are at the discretion of the manufacturer.

This document describes a method for determining the resistance of a cryogenic spill protection (CSP) system to a cryogenic jet as a result of a pressurized release which does not result in immersion conditions. It is applicable where CSP systems are installed on carbon steel and will be in contact with cryogenic fluids. A cryogenic jet can be formed upon release from process equipment operating at pressure (e.g. some liquefaction processes utilize 40 to 60 bar operating pressure). Due to high pressure discharge, the cryogenic spillage protection can be compromised by the large momentum combined with extreme cryogenic temperature. Although the test uses liquid nitrogen as the cryogenic liquid, the test described in this document is representative of a release of LNG, through a 20 mm orifice or less, at a release pressure of 6 barg or less, based upon simulated parameters 1 m from the release point. Confidence in this test being representative is based upon a comparison of the expected dynamic pressure of the simulated release in comparison with dynamic pressure from releases in accordance with this document. It is not practical in this test to cover the whole range of cryogenic process conditions found in real plant conditions; in particular the test does not cover high pressure cryogenic jet releases that might be found in refrigeration circuits and in LNG streams immediately post-liquefaction. Liquid nitrogen is used as the cryogenic medium due to the ability to safely handle the material at the pressures described in this document. The test condition is run at nominally 8 barg pressure. ISO 20088-1 covers cryogenic release scenarios which can lead to pooling conditions for steel work protected by cryogenic spill protection as a result of a jet release or low pressure release of LNG or liquid nitrogen. ISO 20088-2 covers vapour phase exposure conditions as a result of a jet release or low pressure release of LNG or liquid nitrogen.

This document describes the specification of high manganese (Mn) austenitic steel plates to be used for LNG tanks on board ships. The specification of high manganese austenitic steel can be also considered for design and manufacture of cargo tanks and process pressure vessels of LNG supply/terminal and transportation of fuels and traded gases. This document is primarily applicable for the specification of LNG tanks below volumetric capacity of approximately 30 000 m3 using high manganese austenitic steel. The thickness of plates is limited to between 6 mm to 40 mm.

ISO 20233-1:2018 specifies a model test method for propeller cavitation noise evaluation in ship design. The procedure comprises reproduction of noise source, noise measurements, post processing and scaling. The target noise source is propeller cavitation. Thus, this document describes the test set-up and conditions to reproduce the cavitation patterns of the ship based on the similarity laws between the model and the ship. The propeller noise is measured at three stages. The measurement targets for each stage are propeller cavitation noise, background noise, and transmission loss. For the source level evaluations, corrections for the background noise and the transmission loss are applied to the measured propeller cavitation noise. Finally, the full-scale source levels are estimated from the model scale results using a scaling law.

ISO 21984:2018 gives guidelines for the measurement, evaluation and reporting of vibration with regard to habitability for all persons on board ships satisfying one or both of the following conditions: a) 2-stroke cycle, long-stroke, low-speed diesel engine directly coupled to the fixed-pitch propulsion propeller is installed. b) length of deck house (L) is limited as compared with its height (H) (i.e. deck house of around 1,0 and above in slenderness ratio of H to L). An example of length of deck house (L) and its height (H) for slenderness ratio is shown in Annex A. Overall frequency-weighted r.m.s. vibration values in the frequency range 1 Hz to 80 Hz are given as guidance values for different spaces on ships. ISO 21984:2018 is applicable to specific ships with intended voyages of 24 h or more. ISO 21984:2018 specifies requirements for the instrumentation and the procedure of measurement in normally occupied spaces. It also contains analysis specifications and guidelines for the evaluation of ship vibration with respect to habitability. This document is not applicable to machinery spaces, other than engine control rooms, where persons do not stay for prolonged periods of time. ISO 20283‑5 is generally applicable to all ships. Requirements for measurement, evaluation and reporting of vibration with regard to habitability for all persons on board passenger and merchant ships, including specific ships to which this document may also be applicable can be found in ISO 20283‑5. This document is neither complementary nor additional but supplementary to ISO 20283‑5. The shipbuilder can select either this document or ISO 20283‑5 to apply to any specific ship upon due consideration to individual design conditions of the ship and, if any, experience in building sister or similar ships, and that particular selection is intended to be agreed on by the shipowner. The evaluation of low-frequency ship motion which can result in motion sickness is covered by ISO 2631‑1. For the evaluation of the global structural vibration of a ship, however, see ISO 20283‑2.

ISO 21005:2018 specifies materials and finish, dimensions for interchangeability, tolerances, parallelism and flatness, testing, marking and designation of thermally toughened safety glass panes for windows complying with ISO 3903 and side scuttles complying with ISO 1751.

ISO 20313:2018 specifies protection criteria, and makes recommendations for design and specifications for both impressed current and galvanic anode cathodic protection systems for ships. Cathodic protection of external hull and ballast tanks are included. ISO 20313:2018is applicable to the immersed sections of hulls and tanks containing seawater for ships, boats, and other self-propelled floating vessels. It includes fixtures generally encountered on ship hulls such as: - rudders; - propellers; - shafts; - stabilizers; - thrusters; - sea chests; - water intakes (up to the first valve). ISO 20313:2018 does not cover protection of floating structures that are not self-propelled. ISO 20313:2018 is applicable to the cathodic protection of ship hulls fabricated principally from carbon manganese or low-alloy steels including fixtures of other ferrous or non-ferrous alloys such as stainless steels and copper alloys, etc. ISO 20313:2018 is applicable to both coated and bare hulls and tanks; most hulls and tank internals are coated. ISO 20313:2018 is not applicable to the cathodic protection of hulls principally made of other materials such as aluminium alloys, stainless steels or concrete. ISO 20313:2018 is applicable to the hull and fixtures in seawater and all waters which could be encountered during a ship's world-wide deployment.

The purpose of ISO 20154:2017 is to provide general guidelines on the design of ship vibration isolation based on the basic methodology of vibration isolation for shipboard machinery, for example, auxiliary engine, compressor, fan, pump, etc. A well-designed vibration isolation system can significantly reduce the vibration transmission from shipboard machinery to ship structures lowering the noise level onboard the ship or the underwater noise radiated from the ship.

ISO 20155:2017 specifies a test method for determining flow induced in-pipe noise source characteristics of a ship-used pump as a two-port sound source in laboratory conditions by measuring acoustic pressures in the pipe reaches of inlet and outlet. The test method is applicable to all types of centrifugal pumps with a diameter over 50 mm operating under steady conditions. The suitable frequency range of the test method is about 10 Hz to 1 000 Hz, and the upper frequency is dependent on the inner diameter of the pipe, in which the plane acoustic wave propagates.

ISO 20088-1:2016 describes a method for determining the resistance to liquid cryogenic spillage on cryogenic spillage protection (CSP) systems. It is applicable where CSP systems are installed on carbon steel and will be in contact with cryogenic fluids. Liquid nitrogen is used as the cryogenic medium since it has a lower boiling point than liquid natural gas or liquid oxygen and it is not flammable. Additionally, it can be safely used for experiment. Future parts of the standard will cover vapour phase and jet exposure conditions. The test laboratory is responsible to conduct an appropriate risk assessment according to local regulation in order to consider the impact of liquid and gaseous nitrogen exposure to equipment and personnel.

ISO 17940:2015 specifies the classification, marking and requirements for packaging, storage and transportation of hinged watertight doors (hereinafter referred to as watertight doors). ISO 17940:2015 is applicable to the design, fabrication and acceptance of the watertight doors capable of bearing the pressure from both inside and outside due to a headwater up to 10 m.

ISO 6042:2015 specifies the main dimensions, materials, quality and conditions of manufacture for weathertight single-leaf steel doors for application on board ships, in order to ensure interchangeability of the steel doors. The remaining dimensions, welding, and other details are left to the manufacturer. These doors generally conform to the requirements of the International Convention on Load Lines 1966 (ICLL66). The possibility for application of the doors to position 1 and position 2 has to be considered for each situation and, where necessary, the doors shall be provided with additional stiffening (see also Table 1). Users of this ISO 6042:2015 should note that while observing the requirements of this International Standard they should, at the same time, ensure compliance with such statutory requirements, rules, and regulations as may be applicable to the individual ship concerned.

ISO 17939:2015 specifies the classification, structure and main dimensions, materials, quality of manufacture, testing of watertightness and designation for oil tank hatches for application on board ships in order to ensure interchangeability of the hatches. The remaining dimensions, welding, and other details are left to the manufacturer. These hatches generally conform to the requirements of the International Convention on Load Lines 1966 (ILLC66). These structures and specifications of oil-tight hatch covers in this ISO 17939:2015 meet IACS UR S26 requirements. The possibility for application in position 1 and position 2 has to be considered for each situation and, where necessary, the hatch covers shall be provided with additional stiffening. ISO 17939:2015 is applicable to the design, manufacturing, and test of accommodation ladders, as well as accommodation ladder used specifically in combination with pilot ladder (hereinafter referred as "pilot accommodation ladder"). Users of ISO 17939:2015 should note that while observing the requirements of ISO 17939:2015, they should, at the same time, ensure compliance with such statutory requirements, rules, and regulations as may be applicable to the individual ship concerned.

ISO 17941:2015 specifies classification and designation, requirements, test method, marking, packaging, transport, and storage of hydraulic watertight hinged fireproof doors (hereinafter referred to as "watertight doors"). ISO 17941:2015 is applicable to the design, manufacture, and acceptance of hydraulic watertight hinged fireproof doors with water pressure not more than 1,0 MPa used for ships, other floating structures and ocean engineering.

ISO 16145-5:2014 specifies a method for the assessment of coating damages of ballast tanks, as well as cargo oil tanks where IMO PSPC shall be applied, and it can also be applied to other areas as a reference.

ISO 17683:2014 specifies the classification, dimension and appearance, performance, and test methods for ceramic weld backing. It also specifies marking, packaging, and storage. ISO 17683:2014 is applicable to designing, manufacturing, testing, and accepting ceramic weld backing that are to be used in the double side form with single side weld, such as arc welding, gas welding, vertical gas welding, and submerged arc welding, and the shaping structural steel welding end for carbon steel, stainless steel, aluminium alloy, copper alloy etc.

ISO 17682:2013 specifies general guidelines for ship launching utilizing air bags, including the specification of the ship and facilities such as air bags, slipway, towing arrangements, the launching procedure, and safeguards during the ship launching. ISO 17682:2013 is applicable to ships meeting specified requirements and utilizing air bags for launching.

ISO 16145-4:2013 describes the characteristics of an automated measuring method by using a conductivity meter for the assessment of the total surface density of various water-soluble salts on steel surfaces prior to coating applications for dedicated sea water ballast tanks, void spaces of bulk carriers and oil tankers, and cargo oil tanks of crude tankers in compliance with PSPC stipulated by IMO Res.MSC.215(82), IMO Res.MSC.244(83), and IMO Res.MSC.288(87). This method describes a procedure for rapid evaluation of the surface of steel for the presence of ionic contamination by determining the total concentration of water-soluble ionic contaminants by means of a conductivity test.

ISO 16548:2012 gives guidance on towing procedures for cargo ships and passenger ships in emergency situations subject to SOLAS Regulation II-1/3-4.

This part of ISO 16145 specifies a method of protective coatings and its inspection of cargo oil tanks for crude oil tankers of not less than 5 000 tones deadweight, which are contracted for new building on or after 1 January 2013; or in the absence of a building contract, the keels of which are laid or which are at a similar stage of construction on or after 1 July 2013; or the delivery of which is on or after 1 January 2016. NOTE A crude oil tanker is an oil tanker engaged in the trade of carrying crude oil. This part of ISO 16145 applies to crude oil tankers and crude oil/product carriers as defined in items 1.11.1 or 1.11.4 of the Supplement to the International Oil Pollution Prevention Certificate (Form B).

This part of ISO 16145 specifies a method of protective coatings and its inspection of void spaces of bulk carriers and oil tankers which are contracted and agreed to apply PSPC/VOID [IMO Res.MSC.244 (83)] for new building on or after 5 October 2007.

This part of ISO 16145 specifies a method of protective coatings and its inspection for dedicated seawater ballast tanks. It is applicable to all types of ships of not less than 500 gross tonnage and double-side skin spaces of bulk carriers of 150 m in length and upwards, which are contracted for new building on or after 1 July 2008; or in the absence of a building contract, the keels of which are laid or which are at a similar stage of construction on or after 1 January 2009; or the delivery of which is on or after 1 July 2012. This part of ISO 16145 also is applicable to the dedicated seawater ballast tanks of oil tankers of double hull construction of 150 m in length and upwards and double-side skin spaces of bulk carriers of 90 m in length and upwards, which are contracted for new building on or after 8 December 2006. NOTE Double-side skin space is a configuration where each ship side is constructed by the side shell with a longitudinal bulkhead connecting to the double bottom and the deck. Hopper side tanks and top-side tanks may, where fitted, be integral parts of the double-side skin configuration. Therefore, the void spaces or other designated tanks arranged as a part of top-side tank, when provided in the bulk carriers of single-side skin construction, need not be considered as a double-side skin space

ISO 3434:2012 specifies construction characteristics, optical qualities and heat current circuit, as well as the tolerances, tests, marking and designation of heated glass panes for ships' rectangular windows of the heated series according to ISO 3903. It includes the conditions to comply with the safety of ships in times of frost and/or snow, particularly during manoeuvres in port. Heated glass panes are used on ships principally for the windows of wheel-houses and bridges, as well as in enclosed locations used for look-out and manoeuvring purposes. ISO 3434:2012 specifies heated glass panes which are intended for use at temperatures down to -40 °C.

This International Standard specifies the classification of side scuttles for ships (series, types and models), and gives the dimensions for interchangeability and construction, materials, tests, marking and designation of these framed side scuttles with thermally toughened safety glass panes. NOTE This International Standard is based on the experience of side scuttles and glass manufacturers, shipbuilders and authorities who apply to ships the Regulations of the International Convention for the Safety of Life at Sea, 1974 (SOLAS 1974), as amended, 1981, and of the International Convention of Load Lines, 1966, as amended.

This International Standard specifies the classification of rectangular windows for ships (series, types and models), and gives the dimensions for interchangeability and construction, materials, tests, marking and designation of these rectangular windows. NOTE 1 This International Standard is based on the experience of ships' window and glass manufacturers, shipbuilders and authorities who apply to ships the Regulations of the International Convention for the Safety of Life at Sea, 1974 (SOLAS 1974), as amended, and of the International Convention of Load Lines, 1966, as amended.

This International Standard specifies a method for the non-destructive breaking reliability testing of toughened safety glass panes for windows and side scuttles complying with ISO 21005.

ISO 14409:2011 specifies the terms and definitions, classification, materials and dimensions, test items and methods for air bags to be used for launching a vessel. It also specifies issues such as marking, documentation, packaging, transport, storage and so on. ISO 14409:2011 is intended for designing, manufacturing, testing and accepting air bags that are made of synthetic-tire-cord reinforcement layers.

ISO 16155:2006 is applicable where computer equipment is used to perform functions related to loading and associated ship safety issues, such as, but not limited to, intact and damaged stability and longitudinal strength. ISO 16155:2006 defines requirements on a shipboard loading instrument that are supplementary to IMO MSC/Circ. 836, IMO MSC/Circ. 854, IMO MSC/Circ. 891 and IACS Recommendation No. 48.

ISO 15583:2005 provides the list of existing maritime standards of ISO and eight (8) shipbuilding nations in the world (The People's Republic of China, Germany, India, Japan, The Republic of Korea, Poland, Russian Federation and The United States of America) as of the year 2002 by classifying the maritime standards of the aforesaid organization and nations into the codes that correspond to the existing organization of subcommittees of ISO/TC8.

ISO 17894:2005 provides a set of mandatory principles, recommended criteria and associated guidance for the development and use of dependable marine programmable electronic systems for shipboard use. It applies to any shipboard equipment containing programmable elements which may affect the safe or efficient operation of the ship. It contains information for all parties involved in the specification, operation, maintenance and assessment of such systems. The principles and guidance in the document are largely based on requirements in national and international standards. The source standards and their contribution to this International Standard are presented in the bibliography.

ISO 5797:2004 provides requirements for windows and side scuttles for fire-resistant constructions for installation in A class and B class divisions as defined in FTP Code, Part 3 (IMO Res. A 754 (18)). It lays down the requirements for the construction of glass panes and frames, as well as the testing and marking of such windows and side scuttles.

This International Standard specifies the quality requirements for the hull construction of steel bulk carriers. It does not apply to double-skin bulk carriers. Requirements for the maintenance and repair of steel bulk carriers are given in ISO 15402.

This International Standard specifies the quality requirements for the hull structure maintenance and repair of steel bulk carriers. It does not apply to double-skin bulk carriers. Requirements for the construction of steel bulk carriers are given in ISO 15401.

This International Standard lays down standardized dimensions of clear openings for all types of external singleleaf doors, on board ships, for which coamings are required. These dimensions shall be used as nominal sizes for these doors of ships.

This International Standard specifies the main dimensions, location and number of fittings, materials and quality of manufacture for small weathertight steel hatches for application on board ships in order to ensure interchangeability of the hatches. The remaining dimensions are left to the manufacturer. The hatches are suitable for loading operations and for giving access to storage compartments and dry cargo holds. The hatches are not suitable as an access to any kind of tanks and shall not be used as escape hatches. These hatches generally conform to the requirements of the International Convention on Load Lines 1966 (LLC66). The possibility for application in position 1 and position 2 has to be considered for each situation and, where necessary, the hatch covers shall be provided with additional stiffening. NOTE — Users of this International Standard should note that while observing the requirements of this standard, they should, at the same time, ensure compliance with such statutory requirements, rules and regulations as may be applicable to the individual ship concerned.

Specifies the requirements for the design and construction (including dimensions, tolerances, materials and electrical equipment) as well as the designation and installation. Cancels and replaces the first edition (1976), clauses 4.2.4, 4.5.2 and 7, and table 3 of which have been technically revised.

Specifies the dimensions and material of gaskets used for ensuring watertightness between the main components (main frame, glassholder, deadlight) of side scuttles of ships complying with ISO 1751 and rectangular windows of ships complying with ISO 3903.