Ship-owning companies and ship yards worldwide collaborate with steel and lacquer manufacturers, specialized service providers and engineering offices to optimize the safety, cost-efficiency and quality of operating, building and overhauling boats and ships. The executions of construction inspections as well as the monitoring of coating work regarding the building and restoration of ships are subject to international standards as the classification societies are organized in the umbrella organization IACS (International Association of Classification Society LTD) and the IMO member countries (International Maritime Organization) have agreed upon harmonized standards.
Because "Corrosion never sleeps" each separate area of a ship has to be coated differently and accurately according to its particular type of exposure. Therefore, a cathodic anti-corrosion coating combined with coating systems best protects the hull below waterline and the ballast tanks. For the interior and on deck of ships only epoxy based coating systems guarantee reliable anti-corrosion protection. Specific anti-fouling coatings reduce fouling on the hull below waterline and head resistance and increase a ship's cost-efficiency. To apply these various multi-layer protection coatings professionally and document them, a standardized procedure regarding coating work following the ISO 12944 is necessary, which is nowadays based mainly on the originally Norwegian FROSIO, the British ISORR and the US NACE certificates.
For the high quality standard of professional execution precise, robust and at the same time, easy-to-use measurement devices are necessary for the anti-corrosion protection and the management of complex projects. Devices and systems for the determination of coating thickness are used in different spots. Despite varying measurement conditions, such as different kinds of steel in ship building, users have to be able to rely on correct and accurate measurements. In this regard, measurement principles according to ISO 2808 have been established helping to non-destructively determine coating thickness either in wet state using measuring combs, or in dry state using magnetic measuring methods.
Difficult to access spots inside ships provide recesses of humidity. Therefore these areas often crucial to safety are evaluated with special consideration during safety and final inspections as just in these areas the danger of too little coating being applied due to streaming conditions increasing the risk of corrosion. Only small measurement devices with lowest installation height can be used in such areas. The thump-size, independent radio-control probe QNix® 8500 is of particular advantage under such circumstances, as the user can accurately record his measurements even in these places - free, unhindered and exceptionally fast.
Modularly attachable probes allow a measurement system to be adapted to any given measuring task. Furthermore, the availability of the separate modular devices is increased, as the measuring probes are interchangeable among the devices. In addition to simple measuring devices without statistical function for coating workers, measurement devices and systems providing such a feature are necessary for the general and final inspections of ships as several thousand measurements have to be recorded during such inspections. A fast and structured recording of measurements of each individual layer of the usually applied multi-layer coatings depending on location and time is crucial allowing for effective operations thus providing high cost-effectiveness of the quality management. The radio transmission of measurements to a PC for statistical processing and documentation with Microsoft Excel allows for a fast and convenient operation without the gauges plugs dirtying in the rough work conditions thus avoiding related problems. Via the convenient and versatile spreadsheet program, measurement data can be structured, analyzed and sent to project partners via internet (for a detailed application report see DOWNLOADS).
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