Hatch Cover Testing and Marine Surveying Article Library
Class Instrumentation Ltd would like to introduce our Article Library. This library is collated around topics relevant to our customers, such as ultrasonic testing information, and we welcome any suggestions for additions. All of the articles shown here are already freely available on the internet.
The purpose of this library is to provide a source of ultrasonic testing information which is additional to that available from regulatory, advisory, and consultative organisations. These articles are for reference and interest only and do not necessarily reflect the opinion of Class Instrumentation Ltd.
No guarantee of accuracy is given and users of this information are to be responsible for satisfying themselves that the information is relevant and suitable for the purposes towhich it is applied. In no circumstances whatsoever shall the Association be liable to any person whatsoever for any loss or damage whensoever or howsoever arising out of or in connection with the supply (including negligent supply) or use of information.
The content of this library does not constitute legal advice and should not be construed as such
- Standard Bulletin Special Edition - Cargo
- Ultrasonic hatch cover testing: an update
- Hatch Cover Hotspots
- Why do I need a Cargo Safe? Watch this!
- Hatch Cover Supplement
- Turkish Discharge Fines
- Hatch Cover Maintenance
- Hatch Cover Maintenance (article2)
- Hatch Cover Testing
- Cargo Safety
- Fitness for Cargo
- Analysis of Major Claims - Ten Year Trends in Maritime Analysis
- A Master's Guide to Hatch Cover Maintenance
- Aon's P&I Mid-Term Review 2010
- A day in the life of the P&I Club's ship inspector
- Steamship Mutual Condition Survey Reports
- Ship Inspection - A report to the Members
- IACS Guidelines and Recommendations
- Guideline for Bulk Carrier Hatch Cover Surveys & Maintenance
- Hatch Cover Sealing Assessment
- General Cargo on Cellular Container Ships
|The Standard P&I Club produces a variety of publications for the benefit of shipowners and their brokers. The Standard Bulletin provides up-to-date information on activities at the club, in the P&I and in shipping markets and maritime law. This special edition released in February 2007 covers a range of cargo related articles.
|This help sheet was enclosed with the April 2010 issue of Signals Newsletter.
Proper maintenance of hatch covers is esential if they are to be operated effeciently and kept weathertight. However, hatch covers can be complex pieces of equipment and maintenance is adjustment requires knowledge and experience. North has already publisheda loss prevention guide Hatch Cover Maintenance and Operation as well as a loss-prevention briefing to assist seafarers with this task. To provide further help a laminated help sheet is included with this issue of Signals. The aim is that the sheet will be readily available for use on deck and provide a guide for inspection. This wouold help identify problems before they become a serious threat and alert the maintenance team to intervene as soon as possible. It also provides an illustrated guide to common problems associated with sealing arrangments.
Supplement of Signals Newsletter Issue 79
|This supplement was made available to North of England P&I Members in the 58th Edition of their Newsletter Signals. It offers insight into surveying hatch covers and the top ten hatch defects.“The Association may periodically require a ship’s hatch covers to be tested for weathertightness. Similar surveys are also often required by classification societies, and representatives of cargo shippers, particularly where the cargo is sensitive to water damage. These surveys may be done by the traditional hose test or using the more modern method of ultrasonic leak detection.”
|An article on page 9 of Signals on the fines imposed by Turkish environmental authorities for discharges from ships which is calculated on a set amount according to the vessel’s tonnage.Omur Marine, the Association’s correspondent in Istanbul, has recently issued advice to Members as to how to avoid pollution fines, as follows.
“No deck washing or hatch-cover hose testing should be performed in port or at anchorage. Ultrasonic testing of hatches can be carried out in Turkish ports. Members are advised to notify the Association of any need for hatch testing as far in advance as possible so that the necessary ultrasonic testing can be arranged.”
Omur Marine Limited
|Cargo hatch covers are important for the safety of the vessel, crew and cargo. Ensuring weathertight integrity while at sea is the primary objective of hatch covers. A number of reported casualties are related to the loss of weather tight integrity due to the collapse of hatch cover steel structures or failure of securing and locking devices.
|Ensuring a ship’s hatch covers are weathertight is an essential aspect of exercising due diligence to make a ship cargoworthy that may not be covered by routine classification society inspections. This requires an appropriate method of testing to enable any potential problems or defects to be identified and resolved.In this briefing Walter Vervloesem of IMCS Group, and training instructor for IMCS Group Ultrasonic Hatch Cover Tightness Testing Training course, compares the principal methods of testing hatch cover weathertightness and compares hose testing to ultrasonic tightness testing.
|The overall objective of the Classification Societies is to ensure the safe operation of the ship in all sea and weather conditions. As long as the seaworthiness of the ship is ensured, limited attention has been given to the cargo by class. Hatch covers on bulk carriers have two basic functions: In open position hatch covers provide access to the holds for loading and discharge of cargo. In closed position hatch covers seal the hatchway in a weather-tight condition when at sea, meaning that in any condition, there should be no leakage into the cargo hold. This is in compliance with the Load Line Convention. Approximately a third of all P&I claims are cargo-related. Numerous of these cases are related to ingress of seawater via the hatch covers of dry cargo vessels.
|This review is a reference document allowing the reader to source a wide range of data relating to the P&I Market.
Key findings of the Mid-Term Review include:
|This report explains in detail the nature of the ship inspection process, and records the overall picture presented from an analysis of the data in the inspectors’ reports. It also provides an analysis of the findings from the condition survey programme dating back to 1990.
UK P&I Club based on a 1994 study by the Institute of Maritime Law
|Dedicated to safe ships and clean seas, the International Association of Classification Societies Ltd (IACS) makes a unique contribution to maritime safety and regulation through technical support, compliance verification and research and development. More than 90% of the world’s cargo carrying tonnage is covered by the classification design, construction and through-life compliance rules and standards set by the eleven Member Societies of IACS. IACS produces recommendations and guidelines related to adopted resolutions that are not necessarily matters of class but which IACS considers would be helpful to offer some advice to the marine industry. These documents cover a wide range of issues.
These are Regulation 14 &15 which cover the topic of Hatch Covers.
Recommendation 14 Recommendation 15
|An article on cargo hatch sealing on page 16 of November 2003 The Swedish Club Letter
“A claim that frequently appears for the Club is damaged cargo due to ingress of water through the hatch covers rubber seals. This is not necessarily a problem of seaworthiness but definitely one to do with cargoworthiness. The objective of this article is not to address all possible aspects of hatch cover sealing properties and how to rectify them, but to give some simple means for the crew to assure that the covers are in a satisfactory condition”.
|Questions about the carriage of general cargo (steel pipes, plates, coils, project cargo, paper pulp, etc.) on ships classed as container ships have been raised by several of the club’s members.
Their questions include whether P&I cargo cover continues as normal. At first sight, the issue would not appear to be too complex; however, there are sometimes some important issues to consider. This edition of Standard Cargo sets out the steps that the club as a third-party liability insurer believes the ship-owner should consider before carrying general cargo on a container ship.