Russian Maritime Register of Shipping (RS) has published a new edition of the ‘Rules for the Classification and Construction of Ships Carrying Liquefied Gases in Bulk (2019)’ on its website.
Compared to the 2016 edition, amendments took into account new international requirements, together with feedback from the experience accumulated during technical supervision of the design and construction of LNGCs at South Korean shipyards, and RS’ co-operation with LNG containment systems developers.
In some sections, vague and unclear wordings allowing ambiguous interpretation, were deleted. In addition, Part IV - Cargo Containment - was completely amended in the new edition.
For the convenience of users, this is fully consistent with the similar section of the IMO International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (IGC Code), RS said.
The requirements for the application of calculation methods were added while determining the loads on the walls of the membrane cargo tanks during sloshing. The provisions of IACS UIs have also been included.
Updating of Part IX - Materials and Welding - was also undertaken, which covered the advanced requirements for the materials used for the manufacture of gas carrier hull structures and LNG containment and processing systems members.