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    <title>Transport Research International Documentation (TRID)</title>
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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>PRETREATMENT FOR PAINTING-PAINTING MAINTENANCE</title>
      <link>https://trid.trb.org/View/148311</link>
      <description><![CDATA[This article examines aspects of correct pretreatment for painting and the building up of a ship's protection against corrosion, as well as maintenance during voyage and in other situations.  The pretreatment and cleaning of the base surface before painting as carried out is seen as the most important factor in determining the lifespan of a paint system.  Various pretreatment processes are described.  The Swedish standard SIS 055900 is quoted as giving a good representation of the degree of surface purity required in various situations.  Standards of pretreatment for different coatings are suggested.  Some points regarding painting specification and maintenance are given.  Most Norwegian shipyards use chlorinated rubber paint for exterior protection in ships, and a common specification on underwater hull surfaces is three coats of chlorinated-rubber based anti-rust primer (total minimum dry film thickness of 200 micron) followed by one coat of chlorinated-rubber based anti-fouling paint.  The use of "wet docking" and TV-camera monitoring of underwater hull condition are described as means of maintaining hull protective coatings while reducing the need for dry dockings.  Order from BSRA as No. 52,144.]]></description>
      <pubDate>Mon, 31 Mar 1980 00:00:00 GMT</pubDate>
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      <title>CORROSION PROTECTION OF STEEL; ZINC, ALUMINUM OR BOTH?</title>
      <link>https://trid.trb.org/View/148312</link>
      <description><![CDATA[This article lists the various advantages and disadvantages of both zinc and aluminium as corrosion inhibitors for steel plating.  The development of a new hot-dipping bath for steel using a mixture of the two, in the USA, and its subsequent application is described.  Tables showing comparisons of long-term performance tests for zinc (25 millimicron coating), aluminium (50 millimicron coating) and 55% Al-Zn (25 millimicron coating) from the USA and average coating thickness reduction data from the USA and Norway for the same materials are shown.  A third table shows results obtained from western Norway for one year's exposure in different atmospheric conditions and concentrations of sulphur dioxide, in the form of average rates of corrosion for zinc, aluminium and Galvalume.  The article concludes that 55% Zn-Al has two to four times the corrosion resistance of zinc, but has a poorer resistance than aluminium, while the aluminium is more difficult to apply along cut edges where it leaves a surface more vulnerable to rust in some cases than the 55% Zn-Al coating.  Order from BSRA as No. 52,145.]]></description>
      <pubDate>Mon, 31 Mar 1980 00:00:00 GMT</pubDate>
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      <title>RATIONALISED MAINTENANCE</title>
      <link>https://trid.trb.org/View/87429</link>
      <description><![CDATA[This article describes the rationalised maintenance and stockpiling of spare parts as practised by the large shipping company of Wilhelmsen.  The rationalisation results in a feedback system of planning spares supplies from data available, execution of plan, recording of supplies and analysis of spares held in stock which then allows further planning for the procurement of spare parts. The article then explains how each of these steps can be dealt with in practice and how all spare parts and equipment are categorically coded for quick and accurate reference.  Parallel lists of such spares are held in each ship and ashore to avoid misunderstanding and this allows accurate flow of information for spare parts ordered at sea. The system also facilitates the efficient supply of necessary spares at the vessel's earliest port of call. Order from BSRA as No. 49,679.]]></description>
      <pubDate>Tue, 31 Jul 1979 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/87429</guid>
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      <title>SPARE PARTS ADMINISTRATION</title>
      <link>https://trid.trb.org/View/87434</link>
      <description><![CDATA[Efficient shipping operations require rapid access to spare parts and accessories for ships at all times.  This article describes a systematic method of meeting this need. Data-Ship A/S of Oslo has developed a spare parts system which has been implemented in a number of shipping companies.  The system aims to simplify and improve administration in this area by providing better monitoring of component and part stocks, by giving a more effective and rationalised routine for ordering, making specifications and instruction material more readily accessible, and by simplifying stores administration and reducing the stockpile.  This system can also be adopted as part of the TSAR system, where a company's registering system for maintenance planning is also used.  Order from BSRA as 49,680.]]></description>
      <pubDate>Tue, 31 Jul 1979 00:00:00 GMT</pubDate>
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      <title>GENERATORS IN SHIPS' AUXILIARY POWER INSTALLATIONS</title>
      <link>https://trid.trb.org/View/71812</link>
      <description><![CDATA[This paper places generators in three main groups according to their specific power outputs, and states that the middle grouping with specific output of 0.3--2.5 kW per rpm is predominant among ships over 2,000 dwt.  The Author looks at the various demands made on synchronous generators in a ship's electrical supply network.  In the exciter system three alternatives of feeder circuits are discussed, with illustrations.  Problems associated with the design of generators are described with particular reference to bearings and insulation materials for higher operating temperatures.  The Author also discusses the likelihood of damage from short-circuit currents and overload, and the interaction of generator and driving motor.  Order from: BSRA as No. 47,532.]]></description>
      <pubDate>Tue, 14 Mar 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/71812</guid>
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      <title>STOP THE ENERGY ROBBERS-WHICH ARE FOUND ABOARD EVERY SHIP</title>
      <link>https://trid.trb.org/View/71903</link>
      <description><![CDATA[The Author reports on an energy-saving campaign for ships which has been developed by NSFI in collaboration with several Norwegian shipping companies.  Up to now there has been a concentration upon the larger scales aspects of energy conservation such as improving operational performance through better design and construction and by rationalising trade, ports of call and sailing speed.  The present campaign aims at reducing the numerous smaller sources of energy loss that exist in each individual ship, such as from electrical supplies, steam systems and compressed air systems, and as an example the cost of losses from a cooling water pump is given.  The campaign has been devised in order to reach every crew member and the effectiveness of distribution of the information circular will be tested at the Technical School in Trondheim.  This information circular, which forms the basis of the campaign, is made up of two parts: The first to awaken attention to the problem in all areas of ship operation, and the second to educate all concerned towards routine care in saving energy in shipboard systems.  The Author states that with the cooperation of the whole crew the following can be achieved: better fuel economy; a better awareness of conservation; better and quicker reporting of faults; quicker correction of faults; a more effective basis for maintenance and a higher level of this maintenance.  All Norwegian shipping companies will be invited to participate in the project.  Order from: BSRA as No. 47,548.]]></description>
      <pubDate>Tue, 14 Mar 1978 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/71903</guid>
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      <title>OPERATIONAL EXPERIENCE WITH INERT GAS</title>
      <link>https://trid.trb.org/View/54205</link>
      <description><![CDATA[This article summarizes the findings of a Det norske Veritas project to investigate experience with inert gas systems for ships carrying hazardous petroleum cargoes.  An analysis of failure reports from 53 ships has shown that the components most susceptible to damage are the gas blowers, scrubbers and effluent lines.  The corrosion resistance of various materials used for scrubber construction is compared for flue gas based inert gas systems on both turbine- and Diesel-powered ships.  It is considered that a normal steel with a synthetic rubber, epoxy or polyester coating gives the best performance.  The statistics for damage to blowers show that this occurs most frequently in bearings, impellers and shafts of systems where there has been carry-over of water from the scrubber.]]></description>
      <pubDate>Tue, 20 Sep 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/54205</guid>
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