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ClassNK has released its new Guidelines for Additional Fire-fighting Measures for Container Carrier (Edition 2.0).

The guidelines provide criteria for evaluating additional firefighting measures implemented on container carriers beyond the mandatory requirements of international conventions and regulations.

Edition 2.0 reflects operational experience gained from ships in service and the latest international developments. By complying with the guidelines, shipowners and operators can enhance fire safety in a practical and effective manner, while the corresponding notations enable the implementation of such measures to be demonstrated to external stakeholders. Continue reading “ClassNK releases Guidelines for Additional Fire-fighting Measures for Container Carrier Edition 2.0”

Boiler tubes play a critical role in both heat transfer and in maintaining the pressure integrity of marine boilers. When leaks occur, careful evaluation is required to prevent secondary damage.

And DNV has shared guidance on class acceptance criteria, including the assessment of repair feasibility and the follow-up of plug repairs on defective boiler tubes.

Boiler tubes are often exposed to high temperatures, corrosive environments and fluctuating operating conditions, making them susceptible to various forms of degradation. In case of leaks, plugging is often used as a rapid method to restore boiler integrity. Continue reading “DNV guidance on boiler tube plugging class requirements”